* [syzbot] [net?] BUG: Bad page state in skb_pp_cow_data
@ 2024-12-09 10:16 syzbot
2024-12-09 17:15 ` Lorenzo Bianconi
0 siblings, 1 reply; 3+ messages in thread
From: syzbot @ 2024-12-09 10:16 UTC (permalink / raw)
To: davem, edumazet, hawk, horms, ilias.apalodimas, kuba,
linux-kernel, lorenzo, netdev, pabeni, syzkaller-bugs, toke
Hello,
syzbot found the following issue on:
HEAD commit: 7503345ac5f5 Merge tag 'block-6.13-20241207' of git://git...
git tree: upstream
console+strace: https://syzkaller.appspot.com/x/log.txt?x=1784c820580000
kernel config: https://syzkaller.appspot.com/x/.config?x=335e39020523e2ed
dashboard link: https://syzkaller.appspot.com/bug?extid=ff145014d6b0ce64a173
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=177a8b30580000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17d80c0f980000
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/21582041bcc6/disk-7503345a.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/3752facf1019/vmlinux-7503345a.xz
kernel image: https://storage.googleapis.com/syzbot-assets/3b1c3c4d3bd9/bzImage-7503345a.xz
The issue was bisected to:
commit e6d5dbdd20aa6a86974af51deb9414cd2e7794cb
Author: Lorenzo Bianconi <lorenzo@kernel.org>
Date: Mon Feb 12 09:50:56 2024 +0000
xdp: add multi-buff support for xdp running in generic mode
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=129acb30580000
final oops: https://syzkaller.appspot.com/x/report.txt?x=119acb30580000
console output: https://syzkaller.appspot.com/x/log.txt?x=169acb30580000
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+ff145014d6b0ce64a173@syzkaller.appspotmail.com
Fixes: e6d5dbdd20aa ("xdp: add multi-buff support for xdp running in generic mode")
BUG: Bad page state in process syz-executor285 pfn:2d302
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x2d302
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff888022ab2000 0000000000000000
raw: 0000000000000000 0000000000000001 00000000ffffffff 0000000000000000
page dumped because: page_pool leak
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5820, tgid 5820 (syz-executor285), ts 62999485029, free_ts 54592867285
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1556
prep_new_page mm/page_alloc.c:1564 [inline]
get_page_from_freelist+0x3651/0x37a0 mm/page_alloc.c:3474
__alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4751
alloc_pages_bulk_noprof+0x70b/0xcc0 mm/page_alloc.c:4699
alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline]
__page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538
page_pool_alloc_netmem net/core/page_pool.c:590 [inline]
page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597
page_pool_alloc include/net/page_pool/helpers.h:129 [inline]
page_pool_dev_alloc include/net/page_pool/helpers.h:167 [inline]
skb_pp_cow_data+0xc43/0x1640 net/core/skbuff.c:983
netif_skb_check_for_xdp net/core/dev.c:5041 [inline]
netif_receive_generic_xdp net/core/dev.c:5080 [inline]
do_xdp_generic+0x505/0xd30 net/core/dev.c:5148
__netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
__netif_receive_skb_one_core net/core/dev.c:5670 [inline]
__netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
netif_receive_skb_internal net/core/dev.c:5871 [inline]
netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
new_sync_write fs/read_write.c:586 [inline]
vfs_write+0xaeb/0xd30 fs/read_write.c:679
ksys_write+0x18f/0x2b0 fs/read_write.c:731
page last free pid 5807 tgid 5807 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1127 [inline]
free_unref_page+0xde3/0x1130 mm/page_alloc.c:2657
__folio_put+0x2c7/0x440 mm/swap.c:112
pipe_buf_release include/linux/pipe_fs_i.h:219 [inline]
pipe_update_tail fs/pipe.c:224 [inline]
pipe_read+0x6ed/0x13e0 fs/pipe.c:344
new_sync_read fs/read_write.c:484 [inline]
vfs_read+0x991/0xb70 fs/read_write.c:565
ksys_read+0x18f/0x2b0 fs/read_write.c:708
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Modules linked in:
CPU: 0 UID: 0 PID: 5820 Comm: syz-executor285 Not tainted 6.13.0-rc1-syzkaller-00337-g7503345ac5f5 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
bad_page+0x176/0x1d0 mm/page_alloc.c:501
free_page_is_bad mm/page_alloc.c:923 [inline]
free_pages_prepare mm/page_alloc.c:1119 [inline]
free_unref_page+0x1048/0x1130 mm/page_alloc.c:2657
bpf_xdp_shrink_data net/core/filter.c:4148 [inline]
bpf_xdp_frags_shrink_tail+0x3ee/0x7e0 net/core/filter.c:4169
____bpf_xdp_adjust_tail net/core/filter.c:4194 [inline]
bpf_xdp_adjust_tail+0x1c3/0x200 net/core/filter.c:4187
bpf_prog_f476d5219b92964a+0x1e/0x20
__bpf_prog_run include/linux/filter.h:701 [inline]
bpf_prog_run_xdp include/net/xdp.h:514 [inline]
bpf_prog_run_generic_xdp+0x686/0x1510 net/core/dev.c:4973
netif_receive_generic_xdp net/core/dev.c:5086 [inline]
do_xdp_generic+0x757/0xd30 net/core/dev.c:5148
__netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
__netif_receive_skb_one_core net/core/dev.c:5670 [inline]
__netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
netif_receive_skb_internal net/core/dev.c:5871 [inline]
netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
new_sync_write fs/read_write.c:586 [inline]
vfs_write+0xaeb/0xd30 fs/read_write.c:679
ksys_write+0x18f/0x2b0 fs/read_write.c:731
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f941abf7db0
Code: 40 00 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 80 3d f1 e2 07 00 00 74 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89
RSP: 002b:00007ffc09852f28 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f941abf7db0
RDX: 0000000000011dc0 RSI: 00000000200004c0 RDI: 00000000000000c8
RBP: 0000000000000000 R08: 00007ffc09853058 R09: 00007ffc09853058
R10: 00007ffc09853058 R11: 0000000000000202 R12: 00007f941ac460de
R13: 0000000000000000 R14: 00007ffc09852f60 R15: 00007ffc09852f50
</TASK>
BUG: Bad page state in process syz-executor285 pfn:2d301
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x8 pfn:0x2d301
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff888022ab2000 0000000000000000
raw: 0000000000000008 0000000000000001 00000000ffffffff 0000000000000000
page dumped because: page_pool leak
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5820, tgid 5820 (syz-executor285), ts 62999478821, free_ts 55944947211
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1556
prep_new_page mm/page_alloc.c:1564 [inline]
get_page_from_freelist+0x3651/0x37a0 mm/page_alloc.c:3474
__alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4751
alloc_pages_bulk_noprof+0x70b/0xcc0 mm/page_alloc.c:4699
alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline]
__page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538
page_pool_alloc_netmem net/core/page_pool.c:590 [inline]
page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597
page_pool_alloc include/net/page_pool/helpers.h:129 [inline]
page_pool_dev_alloc include/net/page_pool/helpers.h:167 [inline]
skb_pp_cow_data+0xc43/0x1640 net/core/skbuff.c:983
netif_skb_check_for_xdp net/core/dev.c:5041 [inline]
netif_receive_generic_xdp net/core/dev.c:5080 [inline]
do_xdp_generic+0x505/0xd30 net/core/dev.c:5148
__netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
__netif_receive_skb_one_core net/core/dev.c:5670 [inline]
__netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
netif_receive_skb_internal net/core/dev.c:5871 [inline]
netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
new_sync_write fs/read_write.c:586 [inline]
vfs_write+0xaeb/0xd30 fs/read_write.c:679
ksys_write+0x18f/0x2b0 fs/read_write.c:731
page last free pid 5810 tgid 5810 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1127 [inline]
free_unref_page+0xde3/0x1130 mm/page_alloc.c:2657
__folio_put+0x2c7/0x440 mm/swap.c:112
pipe_buf_release include/linux/pipe_fs_i.h:219 [inline]
pipe_update_tail fs/pipe.c:224 [inline]
pipe_read+0x6ed/0x13e0 fs/pipe.c:344
new_sync_read fs/read_write.c:484 [inline]
vfs_read+0x991/0xb70 fs/read_write.c:565
ksys_read+0x18f/0x2b0 fs/read_write.c:708
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Modules linked in:
CPU: 0 UID: 0 PID: 5820 Comm: syz-executor285 Tainted: G B 6.13.0-rc1-syzkaller-00337-g7503345ac5f5 #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
bad_page+0x176/0x1d0 mm/page_alloc.c:501
free_page_is_bad mm/page_alloc.c:923 [inline]
free_pages_prepare mm/page_alloc.c:1119 [inline]
free_unref_page+0x1048/0x1130 mm/page_alloc.c:2657
bpf_xdp_shrink_data net/core/filter.c:4148 [inline]
bpf_xdp_frags_shrink_tail+0x3ee/0x7e0 net/core/filter.c:4169
____bpf_xdp_adjust_tail net/core/filter.c:4194 [inline]
bpf_xdp_adjust_tail+0x1c3/0x200 net/core/filter.c:4187
bpf_prog_f476d5219b92964a+0x1e/0x20
__bpf_prog_run include/linux/filter.h:701 [inline]
bpf_prog_run_xdp include/net/xdp.h:514 [inline]
bpf_prog_run_generic_xdp+0x686/0x1510 net/core/dev.c:4973
netif_receive_generic_xdp net/core/dev.c:5086 [inline]
do_xdp_generic+0x757/0xd30 net/core/dev.c:5148
__netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
__netif_receive_skb_one_core net/core/dev.c:5670 [inline]
__netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
netif_receive_skb_internal net/core/dev.c:5871 [inline]
netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
new_sync_write fs/read_write.c:586 [inline]
vfs_write+0xaeb/0xd30 fs/read_write.c:679
ksys_write+0x18f/0x2b0 fs/read_write.c:731
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f941abf7db0
Code: 40 00 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 80 3d f1 e2 07 00 00 74 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89
RSP: 002b:00007ffc09852f28 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f941abf7db0
RDX: 0000000000011dc0 RSI: 00000000200004c0 RDI: 00000000000000c8
RBP: 0000000000000000 R08: 00007ffc09853058 R09: 00007ffc09853058
R10: 00007ffc09853058 R11: 0000000000000202 R12: 00007f941ac460de
R13: 0000000000000000 R14: 00007ffc09852f60 R15: 00007ffc09852f50
</TASK>
BUG: Bad page state in process syz-executor285 pfn:2d300
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88802d304000 pfn:0x2d300
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff888022ab2000 0000000000000000
raw: ffff88802d304000 0000000000000001 00000000ffffffff 0000000000000000
page dumped because: page_pool leak
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5820, tgid 5820 (syz-executor285), ts 62999472559, free_ts 55944400344
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1556
prep_new_page mm/page_alloc.c:1564 [inline]
get_page_from_freelist+0x3651/0x37a0 mm/page_alloc.c:3474
__alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4751
alloc_pages_bulk_noprof+0x70b/0xcc0 mm/page_alloc.c:4699
alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline]
__page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538
page_pool_alloc_netmem net/core/page_pool.c:590 [inline]
page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597
page_pool_alloc include/net/page_pool/helpers.h:129 [inline]
page_pool_dev_alloc include/net/page_pool/helpers.h:167 [inline]
skb_pp_cow_data+0xc43/0x1640 net/core/skbuff.c:983
netif_skb_check_for_xdp net/core/dev.c:5041 [inline]
netif_receive_generic_xdp net/core/dev.c:5080 [inline]
do_xdp_generic+0x505/0xd30 net/core/dev.c:5148
__netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
__netif_receive_skb_one_core net/core/dev.c:5670 [inline]
__netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
netif_receive_skb_internal net/core/dev.c:5871 [inline]
netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
new_sync_write fs/read_write.c:586 [inline]
vfs_write+0xaeb/0xd30 fs/read_write.c:679
ksys_write+0x18f/0x2b0 fs/read_write.c:731
page last free pid 5810 tgid 5810 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1127 [inline]
free_unref_page+0xde3/0x1130 mm/page_alloc.c:2657
__folio_put+0x2c7/0x440 mm/swap.c:112
pipe_buf_release include/linux/pipe_fs_i.h:219 [inline]
pipe_update_tail fs/pipe.c:224 [inline]
pipe_read+0x6ed/0x13e0 fs/pipe.c:344
new_sync_read fs/read_write.c:484 [inline]
vfs_read+0x991/0xb70 fs/read_write.c:565
ksys_read+0x18f/0x2b0 fs/read_write.c:708
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Modules linked in:
CPU: 0 UID: 0 PID: 5820 Comm: syz-executor285 Tainted: G B 6.13.0-rc1-syzkaller-00337-g7503345ac5f5 #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
bad_page+0x176/0x1d0 mm/page_alloc.c:501
free_page_is_bad mm/page_alloc.c:923 [inline]
free_pages_prepare mm/page_alloc.c:1119 [inline]
free_unref_page+0x1048/0x1130 mm/page_alloc.c:2657
bpf_xdp_shrink_data net/core/filter.c:4148 [inline]
bpf_xdp_frags_shrink_tail+0x3ee/0x7e0 net/core/filter.c:4169
____bpf_xdp_adjust_tail net/core/filter.c:4194 [inline]
bpf_xdp_adjust_tail+0x1c3/0x200 net/core/filter.c:4187
bpf_prog_f476d5219b92964a+0x1e/0x20
__bpf_prog_run include/linux/filter.h:701 [inline]
bpf_prog_run_xdp include/net/xdp.h:514 [inline]
bpf_prog_run_generic_xdp+0x686/0x1510 net/core/dev.c:4973
netif_receive_generic_xdp net/core/dev.c:5086 [inline]
do_xdp_generic+0x757/0xd30 net/core/dev.c:5148
__netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
__netif_receive_skb_one_core net/core/dev.c:5670 [inline]
__netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
netif_receive_skb_internal net/core/dev.c:5871 [inline]
netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
new_sync_write fs/read_write.c:586 [inline]
vfs_write+0xaeb/0xd30 fs/read_write.c:679
ksys_write+0x18f/0x2b0 fs/read_write.c:731
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f941abf7db0
Code: 40 00 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 80 3d f1 e2 07 00 00 74 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89
RSP: 002b:00007ffc09852f28 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f941abf7db0
RDX: 0000000000011dc0 RSI: 00000000200004c0 RDI: 00000000000000c8
RBP: 0000000000000000 R08: 00007ffc09853058 R09: 00007ffc09853058
R10: 00007ffc09853058 R11: 0000000000000202 R12: 00007f941ac460de
R13: 0000000000000000 R14: 00007ffc09852f60 R15: 00007ffc09852f50
</TASK>
BUG: Bad page state in process syz-executor285 pfn:72d3b
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x72d3b
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff888022ab2000 0000000000000000
raw: 0000000000000000 0000000000000001 00000000ffffffff 0000000000000000
page dumped because: page_pool leak
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5820, tgid 5820 (syz-executor285), ts 62999466297, free_ts 54575113729
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1556
prep_new_page mm/page_alloc.c:1564 [inline]
get_page_from_freelist+0x3651/0x37a0 mm/page_alloc.c:3474
__alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4751
alloc_pages_bulk_noprof+0x70b/0xcc0 mm/page_alloc.c:4699
alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline]
__page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538
page_pool_alloc_netmem net/core/page_pool.c:590 [inline]
page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597
page_pool_alloc include/net/page_pool/helpers.h:129 [inline]
page_pool_dev_alloc include/net/page_pool/helpers.h:167 [inline]
skb_pp_cow_data+0xc43/0x1640 net/core/skbuff.c:983
netif_skb_check_for_xdp net/core/dev.c:5041 [inline]
netif_receive_generic_xdp net/core/dev.c:5080 [inline]
do_xdp_generic+0x505/0xd30 net/core/dev.c:5148
__netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
__netif_receive_skb_one_core net/core/dev.c:5670 [inline]
__netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
netif_receive_skb_internal net/core/dev.c:5871 [inline]
netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
new_sync_write fs/read_write.c:586 [inline]
vfs_write+0xaeb/0xd30 fs/read_write.c:679
ksys_write+0x18f/0x2b0 fs/read_write.c:731
page last free pid 5807 tgid 5807 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1127 [inline]
free_unref_page+0xde3/0x1130 mm/page_alloc.c:2657
__folio_put+0x2c7/0x440 mm/swap.c:112
pipe_buf_release include/linux/pipe_fs_i.h:219 [inline]
pipe_update_tail fs/pipe.c:224 [inline]
pipe_read+0x6ed/0x13e0 fs/pipe.c:344
new_sync_read fs/read_write.c:484 [inline]
vfs_read+0x991/0xb70 fs/read_write.c:565
ksys_read+0x18f/0x2b0 fs/read_write.c:708
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Modules linked in:
CPU: 0 UID: 0 PID: 5820 Comm: syz-executor285 Tainted: G B 6.13.0-rc1-syzkaller-00337-g7503345ac5f5 #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
bad_page+0x176/0x1d0 mm/page_alloc.c:501
free_page_is_bad mm/page_alloc.c:923 [inline]
free_pages_prepare mm/page_alloc.c:1119 [inline]
free_unref_page+0x1048/0x1130 mm/page_alloc.c:2657
bpf_xdp_shrink_data net/core/filter.c:4148 [inline]
bpf_xdp_frags_shrink_tail+0x3ee/0x7e0 net/core/filter.c:4169
____bpf_xdp_adjust_tail net/core/filter.c:4194 [inline]
bpf_xdp_adjust_tail+0x1c3/0x200 net/core/filter.c:4187
bpf_prog_f476d5219b92964a+0x1e/0x20
__bpf_prog_run include/linux/filter.h:701 [inline]
bpf_prog_run_xdp include/net/xdp.h:514 [inline]
bpf_prog_run_generic_xdp+0x686/0x1510 net/core/dev.c:4973
netif_receive_generic_xdp net/core/dev.c:5086 [inline]
do_xdp_generic+0x757/0xd30 net/core/dev.c:5148
__netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
__netif_receive_skb_one_core net/core/dev.c:5670 [inline]
__netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
netif_receive_skb_internal net/core/dev.c:5871 [inline]
netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
new_sync_write fs/read_write.c:586 [inline]
vfs_write+0xaeb/0xd30 fs/read_write.c:679
ksys_write+0x18f/0x2b0 fs/read_write.c:731
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f941abf7db0
Code: 40 00 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 80 3d f1 e2 07 00 00 74 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89
RSP: 002b:00007ffc09852f28 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f941abf7db0
RDX: 0000000000011dc0 RSI: 00000000200004c0 RDI: 00000000000000c8
RBP: 0000000000000000 R08: 00007ffc09853058 R09: 00007ffc09853058
R10: 00007ffc09853058 R11: 0000000000000202 R12: 00007f941ac460de
R13: 0000000000000000 R14: 00007ffc09852f60 R15: 00007ffc09852f50
</TASK>
BUG: Bad page state in process syz-executor285 pfn:72d3a
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x72d3a
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff888022ab2000 0000000000000000
raw: 0000000000000000 0000000000000001 00000000ffffffff 0000000000000000
page dumped because: page_pool leak
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5820, tgid 5820 (syz-executor285), ts 62999460106, free_ts 54575122306
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1556
prep_new_page mm/page_alloc.c:1564 [inline]
get_page_from_freelist+0x3651/0x37a0 mm/page_alloc.c:3474
__alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4751
alloc_pages_bulk_noprof+0x70b/0xcc0 mm/page_alloc.c:4699
alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline]
__page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538
page_pool_alloc_netmem net/core/page_pool.c:590 [inline]
page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597
page_pool_alloc include/net/page_pool/helpers.h:129 [inline]
page_pool_dev_alloc include/net/page_pool/helpers.h:167 [inline]
skb_pp_cow_data+0xc43/0x1640 net/core/skbuff.c:983
netif_skb_check_for_xdp net/core/dev.c:5041 [inline]
netif_receive_generic_xdp net/core/dev.c:5080 [inline]
do_xdp_generic+0x505/0xd30 net/core/dev.c:5148
__netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
__netif_receive_skb_one_core net/core/dev.c:5670 [inline]
__netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
netif_receive_skb_internal net/core/dev.c:5871 [inline]
netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
new_sync_write fs/read_write.c:586 [inline]
vfs_write+0xaeb/0xd30 fs/read_write.c:679
ksys_write+0x18f/0x2b0 fs/read_write.c:731
page last free pid 5807 tgid 5807 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1127 [inline]
free_unref_page+0xde3/0x1130 mm/page_alloc.c:2657
__folio_put+0x2c7/0x440 mm/swap.c:112
pipe_buf_release include/linux/pipe_fs_i.h:219 [inline]
pipe_update_tail fs/pipe.c:224 [inline]
pipe_read+0x6ed/0x13e0 fs/pipe.c:344
new_sync_read fs/read_write.c:484 [inline]
vfs_read+0x991/0xb70 fs/read_write.c:565
ksys_read+0x18f/0x2b0 fs/read_write.c:708
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Modules linked in:
CPU: 0 UID: 0 PID: 5820 Comm: syz-executor285 Tainted: G B 6.13.0-rc1-syzkaller-00337-g7503345ac5f5 #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
bad_page+0x176/0x1d0 mm/page_alloc.c:501
free_page_is_bad mm/page_alloc.c:923 [inline]
free_pages_prepare mm/page_alloc.c:1119 [inline]
free_unref_page+0x1048/0x1130 mm/page_alloc.c:2657
bpf_xdp_shrink_data net/core/filter.c:4148 [inline]
bpf_xdp_frags_shrink_tail+0x3ee/0x7e0 net/core/filter.c:4169
____bpf_xdp_adjust_tail net/core/filter.c:4194 [inline]
bpf_xdp_adjust_tail+0x1c3/0x200 net/core/filter.c:4187
bpf_prog_f476d5219b92964a+0x1e/0x20
__bpf_prog_run include/linux/filter.h:701 [inline]
bpf_prog_run_xdp include/net/xdp.h:514 [inline]
bpf_prog_run_generic_xdp+0x686/0x1510 net/core/dev.c:4973
netif_receive_generic_xdp net/core/dev.c:5086 [inline]
do_xdp_generic+0x757/0xd30 net/core/dev.c:5148
__netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
__netif_receive_skb_one_core net/core/dev.c:5670 [inline]
__netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
netif_receive_skb_internal net/core/dev.c:5871 [inline]
netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
new_sync_write fs/read_write.c:586 [inline]
vfs_write+0xaeb/0xd30 fs/read_write.c:679
ksys_write+0x18f/0x2b0 fs/read_write.c:731
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f941abf7db0
Code: 40 00 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 80 3d f1 e2 07 00 00 74 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89
RSP: 002b:00007ffc09852f28 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f941abf7db0
RDX: 0000000000011dc0 RSI: 00000000200004c0 RDI: 00000000000000c8
RBP: 0000000000000000 R08: 00007ffc09853058 R09: 00007ffc09853058
R10: 00007ffc09853058 R11: 0000000000000202 R12: 00007f941ac460de
R13: 0000000000000000 R14: 00007ffc09852f60 R15: 00007ffc09852f50
</TASK>
BUG: Bad page state in process syz-executor285 pfn:72d39
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x72d39
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff888022ab2000 0000000000000000
raw: 0000000000000000 0000000000000001 00000000ffffffff 0000000000000000
page dumped because: page_pool leak
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5820, tgid 5820 (syz-executor285), ts 62999453972, free_ts 54575963863
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1556
prep_new_page mm/page_alloc.c:1564 [inline]
get_page_from_freelist+0x3651/0x37a0 mm/page_alloc.c:3474
__alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4751
alloc_pages_bulk_noprof+0x70b/0xcc0 mm/page_alloc.c:4699
alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline]
__page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538
page_pool_alloc_netmem net/core/page_pool.c:590 [inline]
page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597
page_pool_alloc include/net/page_pool/helpers.h:129 [inline]
page_pool_dev_alloc include/net/page_pool/helpers.h:167 [inline]
skb_pp_cow_data+0xc43/0x1640 net/core/skbuff.c:983
netif_skb_check_for_xdp net/core/dev.c:5041 [inline]
netif_receive_generic_xdp net/core/dev.c:5080 [inline]
do_xdp_generic+0x505/0xd30 net/core/dev.c:5148
__netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
__netif_receive_skb_one_core net/core/dev.c:5670 [inline]
__netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
netif_receive_skb_internal net/core/dev.c:5871 [inline]
netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
new_sync_write fs/read_write.c:586 [inline]
vfs_write+0xaeb/0xd30 fs/read_write.c:679
ksys_write+0x18f/0x2b0 fs/read_write.c:731
page last free pid 5807 tgid 5807 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1127 [inline]
free_unref_page+0xde3/0x1130 mm/page_alloc.c:2657
__folio_put+0x2c7/0x440 mm/swap.c:112
pipe_buf_release include/linux/pipe_fs_i.h:219 [inline]
pipe_update_tail fs/pipe.c:224 [inline]
pipe_read+0x6ed/0x13e0 fs/pipe.c:344
new_sync_read fs/read_write.c:484 [inline]
vfs_read+0x991/0xb70 fs/read_write.c:565
ksys_read+0x18f/0x2b0 fs/read_write.c:708
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Modules linked in:
CPU: 0 UID: 0 PID: 5820 Comm: syz-executor285 Tainted: G B 6.13.0-rc1-syzkaller-00337-g7503345ac5f5 #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
bad_page+0x176/0x1d0 mm/page_alloc.c:501
free_page_is_bad mm/page_alloc.c:923 [inline]
free_pages_prepare mm/page_alloc.c:1119 [inline]
free_unref_page+0x1048/0x1130 mm/page_alloc.c:2657
bpf_xdp_shrink_data net/core/filter.c:4148 [inline]
bpf_xdp_frags_shrink_tail+0x3ee/0x7e0 net/core/filter.c:4169
____bpf_xdp_adjust_tail net/core/filter.c:4194 [inline]
bpf_xdp_adjust_tail+0x1c3/0x200 net/core/filter.c:4187
bpf_prog_f476d5219b92964a+0x1e/0x20
__bpf_prog_run include/linux/filter.h:701 [inline]
bpf_prog_run_xdp include/net/xdp.h:514 [inline]
bpf_prog_run_generic_xdp+0x686/0x1510 net/core/dev.c:4973
netif_receive_generic_xdp net/core/dev.c:5086 [inline]
do_xdp_generic+0x757/0xd30 net/core/dev.c:5148
__netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
__netif_receive_skb_one_core net/core/dev.c:5670 [inline]
__netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
netif_receive_skb_internal net/core/dev.c:5871 [inline]
netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
new_sync_write fs/read_write.c:586 [inline]
vfs_write+0xaeb/0xd30 fs/read_write.c:679
ksys_write+0x18f/0x2b0 fs/read_write.c:731
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f941abf7db0
Code: 40 00 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 80 3d f1 e2 07 00 00 74 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89
RSP: 002b:00007ffc09852f28 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f941abf7db0
RDX: 0000000000011dc0 RSI: 00000000200004c0 RDI: 00000000000000c8
RBP: 0000000000000000 R08: 00007ffc09853058 R09: 00007ffc09853058
R10: 00007ffc09853058 R11: 0000000000000202 R12: 00007f941ac460de
R13: 0000000000000000 R14: 00007ffc09852f60 R15: 00007ffc09852f50
</TASK>
BUG: Bad page state in process syz-executor285 pfn:72d38
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x72d38
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff888022ab2000 0000000000000000
raw: 0000000000000000 0000000000000001 00000000ffffffff 0000000000000000
page dumped because: page_pool leak
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5820, tgid 5820 (syz-executor285), ts 62999447572, free_ts 54575218247
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1556
prep_new_page mm/page_alloc.c:1564 [inline]
get_page_from_freelist+0x3651/0x37a0 mm/page_alloc.c:3474
__alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4751
alloc_pages_bulk_noprof+0x70b/0xcc0 mm/page_alloc.c:4699
alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline]
__page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538
page_pool_alloc_netmem net/core/page_pool.c:590 [inline]
page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597
page_pool_alloc include/net/page_pool/helpers.h:129 [inline]
page_pool_dev_alloc include/net/page_pool/helpers.h:167 [inline]
skb_pp_cow_data+0xc43/0x1640 net/core/skbuff.c:983
netif_skb_check_for_xdp net/core/dev.c:5041 [inline]
netif_receive_generic_xdp net/core/dev.c:5080 [inline]
do_xdp_generic+0x505/0xd30 net/core/dev.c:5148
__netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
__netif_receive_skb_one_core net/core/dev.c:5670 [inline]
__netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
netif_receive_skb_internal net/core/dev.c:5871 [inline]
netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
new_sync_write fs/read_write.c:586 [inline]
vfs_write+0xaeb/0xd30 fs/read_write.c:679
ksys_write+0x18f/0x2b0 fs/read_write.c:731
page last free pid 5807 tgid 5807 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1127 [inline]
free_unref_page+0xde3/0x1130 mm/page_alloc.c:2657
__folio_put+0x2c7/0x440 mm/swap.c:112
pipe_buf_release include/linux/pipe_fs_i.h:219 [inline]
pipe_update_tail fs/pipe.c:224 [inline]
pipe_read+0x6ed/0x13e0 fs/pipe.c:344
new_sync_read fs/read_write.c:484 [inline]
vfs_read+0x991/0xb70 fs/read_write.c:565
ksys_read+0x18f/0x2b0 fs/read_write.c:708
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Modules linked in:
CPU: 0 UID: 0 PID: 5820 Comm: syz-executor285 Tainted: G B 6.13.0-rc1-syzkaller-00337-g7503345ac5f5 #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
bad_page+0x176/0x1d0 mm/page_alloc.c:501
free_page_is_bad mm/page_alloc.c:923 [inline]
free_pages_prepare mm/page_alloc.c:1119 [inline]
free_unref_page+0x1048/0x1130 mm/page_alloc.c:2657
bpf_xdp_shrink_data net/core/filter.c:4148 [inline]
bpf_xdp_frags_shrink_tail+0x3ee/0x7e0 net/core/filter.c:4169
____bpf_xdp_adjust_tail net/core/filter.c:4194 [inline]
bpf_xdp_adjust_tail+0x1c3/0x200 net/core/filter.c:4187
bpf_prog_f476d5219b92964a+0x1e/0x20
__bpf_prog_run include/linux/filter.h:701 [inline]
bpf_prog_run_xdp include/net/xdp.h:514 [inline]
bpf_prog_run_generic_xdp+0x686/0x1510 net/core/dev.c:4973
netif_receive_generic_xdp net/core/dev.c:5086 [inline]
do_xdp_generic+0x757/0xd30 net/core/dev.c:5148
__netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
__netif_receive_skb_one_core net/core/dev.c:5670 [inline]
__netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
netif_receive_skb_internal net/core/dev.c:5871 [inline]
netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
new_sync_write fs/read_write.c:586 [inline]
vfs_write+0xaeb/0xd30 fs/read_write.c:679
ksys_write+0x18f/0x2b0 fs/read_write.c:731
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f941abf7db0
Code: 40 00 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 80 3d f1 e2 07 00 00 74 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89
RSP: 002b:00007ffc09852f28 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f941abf7db0
RDX: 0000000000011dc0 RSI: 00000000200004c0 RDI: 00000000000000c8
RBP: 0000000000000000 R08: 00007ffc09853058 R09: 00007ffc09853058
R10: 00007ffc09853058 R11: 0000000000000202 R12: 00007f941ac460de
R13: 0000000000000000 R14: 00007ffc09852f60 R15: 00007ffc09852f50
</TASK>
BUG: Bad page state in process syz-executor285 pfn:76907
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x76907
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff888022ab2000 0000000000000000
raw: 0000000000000000 0000000000000001 00000000ffffffff 0000000000000000
page dumped because: page_pool leak
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5820, tgid 5820 (syz-executor285), ts 62999441200, free_ts 54582364655
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1556
prep_new_page mm/page_alloc.c:1564 [inline]
get_page_from_freelist+0x3651/0x37a0 mm/page_alloc.c:3474
__alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4751
alloc_pages_bulk_noprof+0x70b/0xcc0 mm/page_alloc.c:4699
alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline]
__page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538
page_pool_alloc_netmem net/core/page_pool.c:590 [inline]
page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597
page_pool_alloc include/net/page_pool/helpers.h:129 [inline]
page_pool_dev_alloc include/net/page_pool/helpers.h:167 [inline]
skb_pp_cow_data+0xc43/0x1640 net/core/skbuff.c:983
netif_skb_check_for_xdp net/core/dev.c:5041 [inline]
netif_receive_generic_xdp net/core/dev.c:5080 [inline]
do_xdp_generic+0x505/0xd30 net/core/dev.c:5148
__netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
__netif_receive_skb_one_core net/core/dev.c:5670 [inline]
__netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
netif_receive_skb_internal net/core/dev.c:5871 [inline]
netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
new_sync_write fs/read_write.c:586 [inline]
vfs_write+0xaeb/0xd30 fs/read_write.c:679
ksys_write+0x18f/0x2b0 fs/read_write.c:731
page last free pid 5807 tgid 5807 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1127 [inline]
free_unref_page+0xde3/0x1130 mm/page_alloc.c:2657
__folio_put+0x2c7/0x440 mm/swap.c:112
pipe_buf_release include/linux/pipe_fs_i.h:219 [inline]
pipe_update_tail fs/pipe.c:224 [inline]
pipe_read+0x6ed/0x13e0 fs/pipe.c:344
new_sync_read fs/read_write.c:484 [inline]
vfs_read+0x991/0xb70 fs/read_write.c:565
ksys_read+0x18f/0x2b0 fs/read_write.c:708
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Modules linked in:
CPU: 0 UID: 0 PID: 5820 Comm: syz-executor285 Tainted: G B 6.13.0-rc1-syzkaller-00337-g7503345ac5f5 #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
bad_page+0x176/0x1d0 mm/page_alloc.c:501
free_page_is_bad mm/page_alloc.c:923 [inline]
free_pages_prepare mm/page_alloc.c:1119 [inline]
free_unref_page+0x1048/0x1130 mm/page_alloc.c:2657
bpf_xdp_shrink_data net/core/filter.c:4148 [inline]
bpf_xdp_frags_shrink_tail+0x3ee/0x7e0 net/core/filter.c:4169
____bpf_xdp_adjust_tail net/core/filter.c:4194 [inline]
bpf_xdp_adjust_tail+0x1c3/0x200 net/core/filter.c:4187
bpf_prog_f476d5219b92964a+0x1e/0x20
__bpf_prog_run include/linux/filter.h:701 [inline]
bpf_prog_run_xdp include/net/xdp.h:514 [inline]
bpf_prog_run_generic_xdp+0x686/0x1510 net/core/dev.c:4973
netif_receive_generic_xdp net/core/dev.c:5086 [inline]
do_xdp_generic+0x757/0xd30 net/core/dev.c:5148
__netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
__netif_receive_skb_one_core net/core/dev.c:5670 [inline]
__netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
netif_receive_skb_internal net/core/dev.c:5871 [inline]
netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
new_sync_write fs/read_write.c:586 [inline]
vfs_write+0xaeb/0xd30 fs/read_write.c:679
ksys_write+0x18f/0x2b0 fs/read_write.c:731
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f941abf7db0
Code: 40 00 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 80 3d f1 e2 07 00 00 74 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89
RSP: 002b:00007ffc09852f28 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f941abf7db0
RDX: 0000000000011dc0 RSI: 00000000200004c0 RDI: 00000000000000c8
RBP: 0000000000000000 R08: 00007ffc09853058 R09: 00007ffc09853058
R10: 00007ffc09853058 R11: 0000000000000202 R12: 00007f941ac460de
R13: 0000000000000000 R14: 00007ffc09852f60 R15: 00007ffc09852f50
</TASK>
BUG: Bad page state in process syz-executor285 pfn:76906
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x76906
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff888022ab2000 0000000000000000
raw: 0000000000000000 0000000000000001 00000000ffffffff 0000000000000000
page dumped because: page_pool leak
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5820, tgid 5820 (syz-executor285), ts 62999421067, free_ts 54582851254
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1556
prep_new_page mm/page_alloc.c:1564 [inline]
get_page_from_freelist+0x3651/0x37a0 mm/page_alloc.c:3474
__alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4751
alloc_pages_bulk_noprof+0x70b/0xcc0 mm/page_alloc.c:4699
alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline]
__page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538
page_pool_alloc_netmem net/core/page_pool.c:590 [inline]
page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597
page_pool_alloc include/net/page_pool/helpers.h:129 [inline]
page_pool_dev_alloc include/net/page_pool/helpers.h:167 [inline]
skb_pp_cow_data+0xc43/0x1640 net/core/skbuff.c:983
netif_skb_check_for_xdp net/core/dev.c:5041 [inline]
netif_receive_generic_xdp net/core/dev.c:5080 [inline]
do_xdp_generic+0x505/0xd30 net/core/dev.c:5148
__netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
__netif_receive_skb_one_core net/core/dev.c:5670 [inline]
__netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
netif_receive_skb_internal net/core/dev.c:5871 [inline]
netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
new_sync_write fs/read_write.c:586 [inline]
vfs_write+0xaeb/0xd30 fs/read_write.c:679
ksys_write+0x18f/0x2b0 fs/read_write.c:731
page last free pid 5807 tgid 5807 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1127 [inline]
free_unref_page+0xde3/0x1130 mm/page_alloc.c:2657
__folio_put+0x2c7/0x440 mm/swap.c:112
pipe_buf_release include/linux/pipe_fs_i.h:219 [inline]
pipe_update_tail fs/pipe.c:224 [inline]
pipe_read+0x6ed/0x13e0 fs/pipe.c:344
new_sync_read fs/read_write.c:484 [inline]
vfs_read+0x991/0xb70 fs/read_write.c:565
ksys_read+0x18f/0x2b0 fs/read_write.c:708
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Modules linked in:
CPU: 0 UID: 0 PID: 5820 Comm: syz-executor285 Tainted: G B 6.13.0-rc1-syzkaller-00337-g7503345ac5f5 #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
bad_page+0x176/0x1d0 mm/page_alloc.c:501
free_page_is_bad mm/page_alloc.c:923 [inline]
free_pages_prepare mm/page_alloc.c:1119 [inline]
free_unref_page+0x1048/0x1130 mm/page_alloc.c:2657
bpf_xdp_shrink_data net/core/filter.c:4148 [inline]
bpf_xdp_frags_shrink_tail+0x3ee/0x7e0 net/core/filter.c:4169
____bpf_xdp_adjust_tail net/core/filter.c:4194 [inline]
bpf_xdp_adjust_tail+0x1c3/0x200 net/core/filter.c:4187
bpf_prog_f476d5219b92964a+0x1e/0x20
__bpf_prog_run include/linux/filter.h:701 [inline]
bpf_prog_run_xdp include/net/xdp.h:514 [inline]
bpf_prog_run_generic_xdp+0x686/0x1510 net/core/dev.c:4973
netif_receive_generic_xdp net/core/dev.c:5086 [inline]
do_xdp_generic+0x757/0xd30 net/core/dev.c:5148
__netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
__netif_receive_skb_one_core net/core/dev.c:5670 [inline]
__netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
netif_receive_skb_internal net/core/dev.c:5871 [inline]
netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
new_sync_write fs/read_write.c:586 [inline]
vfs_write+0xaeb/0xd30 fs/read_write.c:679
ksys_write+0x18f/0x2b0 fs/read_write.c:731
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f941abf7db0
Code: 40 00 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 80 3d f1 e2 07 00 00 74 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89
RSP: 002b:00007ffc09852f28 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f941abf7db0
RDX: 0000000000011dc0 RSI: 00000000200004c0 RDI: 00000000000000c8
RBP: 0000000000000000 R08: 00007ffc09853058 R09: 00007ffc09853058
R10: 00007ffc09853058 R11: 0000000000000202 R12: 00007f941ac460de
R13: 0000000000000000 R14: 00007ffc09852f60 R15: 00007ffc09852f50
</TASK>
BUG: Bad page state in process syz-executor285 pfn:76905
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x76905
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff888022ab2000 0000000000000000
raw: 0000000000000000 0000000000000001 00000000ffffffff 0000000000000000
page dumped because: page_pool leak
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5820, tgid 5820 (syz-executor285), ts 62999414838, free_ts 54582871367
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1556
prep_new_page mm/page_alloc.c:1564 [inline]
get_page_from_freelist+0x3651/0x37a0 mm/page_alloc.c:3474
__alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4751
alloc_pages_bulk_noprof+0x70b/0xcc0 mm/page_alloc.c:4699
alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline]
__page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538
page_pool_alloc_netmem net/core/page_pool.c:590 [inline]
page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597
page_pool_alloc include/net/page_pool/helpers.h:129 [inline]
page_pool_dev_alloc include/net/page_pool/helpers.h:167 [inline]
skb_pp_cow_data+0xc43/0x1640 net/core/skbuff.c:983
netif_skb_check_for_xdp net/core/dev.c:5041 [inline]
netif_receive_generic_xdp net/core/dev.c:5080 [inline]
do_xdp_generic+0x505/0xd30 net/core/dev.c:5148
__netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
__netif_receive_skb_one_core net/core/dev.c:5670 [inline]
__netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
netif_receive_skb_internal net/core/dev.c:5871 [inline]
netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
new_sync_write fs/read_write.c:586 [inline]
vfs_write+0xaeb/0xd30 fs/read_write.c:679
ksys_write+0x18f/0x2b0 fs/read_write.c:731
page last free pid 5807 tgid 5807 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1127 [inline]
free_unref_page+0xde3/0x1130 mm/page_alloc.c:2657
__folio_put+0x2c7/0x440 mm/swap.c:112
pipe_buf_release include/linux/pipe_fs_i.h:219 [inline]
pipe_update_tail fs/pipe.c:224 [inline]
pipe_read+0x6ed/0x13e0 fs/pipe.c:344
new_sync_read fs/read_write.c:484 [inline]
vfs_read+0x991/0xb70 fs/read_write.c:565
ksys_read+0x18f/0x2b0 fs/read_write.c:708
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Modules linked in:
CPU: 0 UID: 0 PID: 5820 Comm: syz-executor285 Tainted: G B 6.13.0-rc1-syzkaller-00337-g7503345ac5f5 #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
bad_page+0x176/0x1d0 mm/page_alloc.c:501
free_page_is_bad mm/page_alloc.c:923 [inline]
free_pages_prepare mm/page_alloc.c:1119 [inline]
free_unref_page+0x1048/0x1130 mm/page_alloc.c:2657
bpf_xdp_shrink_data net/core/filter.c:4148 [inline]
bpf_xdp_frags_shrink_tail+0x3ee/0x7e0 net/core/filter.c:4169
____bpf_xdp_adjust_tail net/core/filter.c:4194 [inline]
bpf_xdp_adjust_tail+0x1c3/0x200 net/core/filter.c:4187
bpf_prog_f476d5219b92964a+0x1e/0x20
__bpf_prog_run include/linux/filter.h:701 [inline]
bpf_prog_run_xdp include/net/xdp.h:514 [inline]
bpf_prog_run_generic_xdp+0x686/0x1510 net/core/dev.c:4973
netif_receive_generic_xdp net/core/dev.c:5086 [inline]
do_xdp_generic+0x757/0xd30 net/core/dev.c:5148
__netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
__netif_receive_skb_one_core net/core/dev.c:5670 [inline]
__netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
netif_receive_skb_internal net/core/dev.c:5871 [inline]
netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
new_sync_write fs/read_write.c:586 [inline]
vfs_write+0xaeb/0xd30 fs/read_write.c:679
ksys_write+0x18f/0x2b0 fs/read_write.c:731
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f941abf7db0
Code: 40 00 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 80 3d f1 e2 07 00 00 74 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89
RSP: 002b:00007ffc09852f28 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f941abf7db0
RDX: 0000000000011dc0 RSI: 00000000200004c0 RDI: 00000000000000c8
RBP: 0000000000000000 R08: 00007ffc09853058 R09: 00007ffc09853058
R10: 00007ffc09853058 R11: 0000000000000202 R12: 00007f941ac460de
R13: 0000000000000000 R14: 00007ffc09852f60 R15: 00007ffc09852f50
</TASK>
BUG: Bad page state in process syz-executor285 pfn:76904
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x76904
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff888022ab2000 0000000000000000
raw: 0000000000000000 0000000000000001 00000000ffffffff 0000000000000000
page dumped because: page_pool leak
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5820, tgid 5820 (syz-executor285), ts 62999408239, free_ts 54582895841
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1556
prep_new_page mm/page_alloc.c:1564 [inline]
get_page_from_freelist+0x3651/0x37a0 mm/page_alloc.c:3474
__alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4751
alloc_pages_bulk_noprof+0x70b/0xcc0 mm/page_alloc.c:4699
alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline]
__page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538
page_pool_alloc_netmem net/core/page_pool.c:590 [inline]
page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597
page_pool_alloc include/net/page_pool/helpers.h:129 [inline]
page_pool_dev_alloc include/net/page_pool/helpers.h:167 [inline]
skb_pp_cow_data+0xc43/0x1640 net/core/skbuff.c:983
netif_skb_check_for_xdp net/core/dev.c:5041 [inline]
netif_receive_generic_xdp net/core/dev.c:5080 [inline]
do_xdp_generic+0x505/0xd30 net/core/dev.c:5148
__netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
__netif_receive_skb_one_core net/core/dev.c:5670 [inline]
__netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
netif_receive_skb_internal net/core/dev.c:5871 [inline]
netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
new_sync_write fs/read_write.c:586 [inline]
vfs_write+0xaeb/0xd30 fs/read_write.c:679
ksys_write+0x18f/0x2b0 fs/read_write.c:731
page last free pid 5807 tgid 5807 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1127 [inline]
free_unref_page+0xde3/0x1130 mm/page_alloc.c:2657
__folio_put+0x2c7/0x440 mm/swap.c:112
pipe_buf_release include/linux/pipe_fs_i.h:219 [inline]
pipe_update_tail fs/pipe.c:224 [inline]
pipe_read+0x6ed/0x13e0 fs/pipe.c:344
new_sync_read fs/read_write.c:484 [inline]
vfs_read+0x991/0xb70 fs/read_write.c:565
ksys_read+0x18f/0x2b0 fs/read_write.c:708
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Modules linked in:
CPU: 0 UID: 0 PID: 5820 Comm: syz-executor285 Tainted: G B 6.13.0-rc1-syzkaller-00337-g7503345ac5f5 #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
bad_page+0x176/0x1d0 mm/page_alloc.c:501
free_page_is_bad mm/page_alloc.c:923 [inline]
free_pages_prepare mm/page_alloc.c:1119 [inline]
free_unref_page+0x1048/0x1130 mm/page_alloc.c:2657
bpf_xdp_shrink_data net/core/filter.c:4148 [inline]
bpf_xdp_frags_shrink_tail+0x3ee/0x7e0 net/core/filter.c:4169
____bpf_xdp_adjust_tail net/core/filter.c:4194 [inline]
bpf_xdp_adjust_tail+0x1c3/0x200 net/core/filter.c:4187
bpf_prog_f476d5219b92964a+0x1e/0x20
__bpf_prog_run include/linux/filter.h:701 [inline]
bpf_prog_run_xdp include/net/xdp.h:514 [inline]
bpf_prog_run_generic_xdp+0x686/0x1510 net/core/dev.c:4973
netif_receive_generic_xdp net/core/dev.c:5086 [inline]
do_xdp_generic+0x757/0xd30 net/core/dev.c:5148
__netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
__netif_receive_skb_one_core net/core/dev.c:5670 [inline]
__netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
netif_receive_skb_internal net/core/dev.c:5871 [inline]
netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
new_sync_write fs/read_write.c:586 [inline]
vfs_write+0xaeb/0xd30 fs/read_write.c:679
ksys_write+0x18f/0x2b0 fs/read_write.c:731
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f941abf7db0
Code: 40 00 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 80 3d f1 e2 07 00 00 74 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89
RSP: 002b:00007ffc09852f28 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f941abf7db0
RDX: 0000000000011dc0 RSI: 00000000200004c0 RDI: 00000000000000c8
RBP: 0000000000000000 R08: 00007ffc09853058 R09: 00007ffc09853058
R10: 00007ffc09853058 R11: 0000000000000202 R12: 00007f941ac460de
R13: 0000000000000000 R14: 00007ffc09852f60 R15: 00007ffc09852f50
</TASK>
---
This report is generated by a bot. It may contain errors.
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If the report is already addressed, let syzbot know by replying with:
#syz fix: exact-commit-title
If you want syzbot to run the reproducer, reply with:
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If you want to overwrite report's subsystems, reply with:
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^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [syzbot] [net?] BUG: Bad page state in skb_pp_cow_data
2024-12-09 10:16 [syzbot] [net?] BUG: Bad page state in skb_pp_cow_data syzbot
@ 2024-12-09 17:15 ` Lorenzo Bianconi
2024-12-11 13:41 ` Ilias Apalodimas
0 siblings, 1 reply; 3+ messages in thread
From: Lorenzo Bianconi @ 2024-12-09 17:15 UTC (permalink / raw)
To: syzbot
Cc: davem, edumazet, hawk, horms, ilias.apalodimas, kuba,
linux-kernel, netdev, pabeni, syzkaller-bugs, toke
[-- Attachment #1: Type: text/plain, Size: 62928 bytes --]
> Hello,
>
> syzbot found the following issue on:
>
> HEAD commit: 7503345ac5f5 Merge tag 'block-6.13-20241207' of git://git...
> git tree: upstream
> console+strace: https://syzkaller.appspot.com/x/log.txt?x=1784c820580000
> kernel config: https://syzkaller.appspot.com/x/.config?x=335e39020523e2ed
> dashboard link: https://syzkaller.appspot.com/bug?extid=ff145014d6b0ce64a173
> compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=177a8b30580000
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17d80c0f980000
>
> Downloadable assets:
> disk image: https://storage.googleapis.com/syzbot-assets/21582041bcc6/disk-7503345a.raw.xz
> vmlinux: https://storage.googleapis.com/syzbot-assets/3752facf1019/vmlinux-7503345a.xz
> kernel image: https://storage.googleapis.com/syzbot-assets/3b1c3c4d3bd9/bzImage-7503345a.xz
>
> The issue was bisected to:
>
> commit e6d5dbdd20aa6a86974af51deb9414cd2e7794cb
> Author: Lorenzo Bianconi <lorenzo@kernel.org>
> Date: Mon Feb 12 09:50:56 2024 +0000
>
> xdp: add multi-buff support for xdp running in generic mode
>
> bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=129acb30580000
> final oops: https://syzkaller.appspot.com/x/report.txt?x=119acb30580000
> console output: https://syzkaller.appspot.com/x/log.txt?x=169acb30580000
>
> IMPORTANT: if you fix the issue, please add the following tag to the commit:
> Reported-by: syzbot+ff145014d6b0ce64a173@syzkaller.appspotmail.com
> Fixes: e6d5dbdd20aa ("xdp: add multi-buff support for xdp running in generic mode")
>
> BUG: Bad page state in process syz-executor285 pfn:2d302
> page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x2d302
> flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
> raw: 00fff00000000000 dead000000000040 ffff888022ab2000 0000000000000000
> raw: 0000000000000000 0000000000000001 00000000ffffffff 0000000000000000
> page dumped because: page_pool leak
> page_owner tracks the page as allocated
> page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5820, tgid 5820 (syz-executor285), ts 62999485029, free_ts 54592867285
> set_page_owner include/linux/page_owner.h:32 [inline]
> post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1556
> prep_new_page mm/page_alloc.c:1564 [inline]
> get_page_from_freelist+0x3651/0x37a0 mm/page_alloc.c:3474
> __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4751
> alloc_pages_bulk_noprof+0x70b/0xcc0 mm/page_alloc.c:4699
> alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline]
> __page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538
> page_pool_alloc_netmem net/core/page_pool.c:590 [inline]
> page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597
> page_pool_alloc include/net/page_pool/helpers.h:129 [inline]
> page_pool_dev_alloc include/net/page_pool/helpers.h:167 [inline]
> skb_pp_cow_data+0xc43/0x1640 net/core/skbuff.c:983
> netif_skb_check_for_xdp net/core/dev.c:5041 [inline]
> netif_receive_generic_xdp net/core/dev.c:5080 [inline]
> do_xdp_generic+0x505/0xd30 net/core/dev.c:5148
> __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
> __netif_receive_skb_one_core net/core/dev.c:5670 [inline]
> __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
> netif_receive_skb_internal net/core/dev.c:5871 [inline]
> netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
> tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
> tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
> tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
> new_sync_write fs/read_write.c:586 [inline]
> vfs_write+0xaeb/0xd30 fs/read_write.c:679
> ksys_write+0x18f/0x2b0 fs/read_write.c:731
> page last free pid 5807 tgid 5807 stack trace:
> reset_page_owner include/linux/page_owner.h:25 [inline]
> free_pages_prepare mm/page_alloc.c:1127 [inline]
> free_unref_page+0xde3/0x1130 mm/page_alloc.c:2657
> __folio_put+0x2c7/0x440 mm/swap.c:112
> pipe_buf_release include/linux/pipe_fs_i.h:219 [inline]
> pipe_update_tail fs/pipe.c:224 [inline]
> pipe_read+0x6ed/0x13e0 fs/pipe.c:344
> new_sync_read fs/read_write.c:484 [inline]
> vfs_read+0x991/0xb70 fs/read_write.c:565
> ksys_read+0x18f/0x2b0 fs/read_write.c:708
> do_syscall_x64 arch/x86/entry/common.c:52 [inline]
> do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
> entry_SYSCALL_64_after_hwframe+0x77/0x7f
> Modules linked in:
According to the stack trace above this seems an issue in the page_pool
codebase since we are trying to get a new page from the page allocator
(__page_pool_alloc_pages_slow()) but the new page we receive is already
marked with PP_SIGNATURE in pp_magic field (bad reason is set to "page_pool
leak" in page_bad_reason()) so it already belongs to the pool.
@Jesper, Ilias: any input on it?
Regards,
Lorenzo
> CPU: 0 UID: 0 PID: 5820 Comm: syz-executor285 Not tainted 6.13.0-rc1-syzkaller-00337-g7503345ac5f5 #0
> Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
> Call Trace:
> <TASK>
> __dump_stack lib/dump_stack.c:94 [inline]
> dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
> bad_page+0x176/0x1d0 mm/page_alloc.c:501
> free_page_is_bad mm/page_alloc.c:923 [inline]
> free_pages_prepare mm/page_alloc.c:1119 [inline]
> free_unref_page+0x1048/0x1130 mm/page_alloc.c:2657
> bpf_xdp_shrink_data net/core/filter.c:4148 [inline]
> bpf_xdp_frags_shrink_tail+0x3ee/0x7e0 net/core/filter.c:4169
> ____bpf_xdp_adjust_tail net/core/filter.c:4194 [inline]
> bpf_xdp_adjust_tail+0x1c3/0x200 net/core/filter.c:4187
> bpf_prog_f476d5219b92964a+0x1e/0x20
> __bpf_prog_run include/linux/filter.h:701 [inline]
> bpf_prog_run_xdp include/net/xdp.h:514 [inline]
> bpf_prog_run_generic_xdp+0x686/0x1510 net/core/dev.c:4973
> netif_receive_generic_xdp net/core/dev.c:5086 [inline]
> do_xdp_generic+0x757/0xd30 net/core/dev.c:5148
> __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
> __netif_receive_skb_one_core net/core/dev.c:5670 [inline]
> __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
> netif_receive_skb_internal net/core/dev.c:5871 [inline]
> netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
> tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
> tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
> tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
> new_sync_write fs/read_write.c:586 [inline]
> vfs_write+0xaeb/0xd30 fs/read_write.c:679
> ksys_write+0x18f/0x2b0 fs/read_write.c:731
> do_syscall_x64 arch/x86/entry/common.c:52 [inline]
> do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
> entry_SYSCALL_64_after_hwframe+0x77/0x7f
> RIP: 0033:0x7f941abf7db0
> Code: 40 00 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 80 3d f1 e2 07 00 00 74 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89
> RSP: 002b:00007ffc09852f28 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
> RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f941abf7db0
> RDX: 0000000000011dc0 RSI: 00000000200004c0 RDI: 00000000000000c8
> RBP: 0000000000000000 R08: 00007ffc09853058 R09: 00007ffc09853058
> R10: 00007ffc09853058 R11: 0000000000000202 R12: 00007f941ac460de
> R13: 0000000000000000 R14: 00007ffc09852f60 R15: 00007ffc09852f50
> </TASK>
> BUG: Bad page state in process syz-executor285 pfn:2d301
> page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x8 pfn:0x2d301
> flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
> raw: 00fff00000000000 dead000000000040 ffff888022ab2000 0000000000000000
> raw: 0000000000000008 0000000000000001 00000000ffffffff 0000000000000000
> page dumped because: page_pool leak
> page_owner tracks the page as allocated
> page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5820, tgid 5820 (syz-executor285), ts 62999478821, free_ts 55944947211
> set_page_owner include/linux/page_owner.h:32 [inline]
> post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1556
> prep_new_page mm/page_alloc.c:1564 [inline]
> get_page_from_freelist+0x3651/0x37a0 mm/page_alloc.c:3474
> __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4751
> alloc_pages_bulk_noprof+0x70b/0xcc0 mm/page_alloc.c:4699
> alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline]
> __page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538
> page_pool_alloc_netmem net/core/page_pool.c:590 [inline]
> page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597
> page_pool_alloc include/net/page_pool/helpers.h:129 [inline]
> page_pool_dev_alloc include/net/page_pool/helpers.h:167 [inline]
> skb_pp_cow_data+0xc43/0x1640 net/core/skbuff.c:983
> netif_skb_check_for_xdp net/core/dev.c:5041 [inline]
> netif_receive_generic_xdp net/core/dev.c:5080 [inline]
> do_xdp_generic+0x505/0xd30 net/core/dev.c:5148
> __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
> __netif_receive_skb_one_core net/core/dev.c:5670 [inline]
> __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
> netif_receive_skb_internal net/core/dev.c:5871 [inline]
> netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
> tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
> tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
> tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
> new_sync_write fs/read_write.c:586 [inline]
> vfs_write+0xaeb/0xd30 fs/read_write.c:679
> ksys_write+0x18f/0x2b0 fs/read_write.c:731
> page last free pid 5810 tgid 5810 stack trace:
> reset_page_owner include/linux/page_owner.h:25 [inline]
> free_pages_prepare mm/page_alloc.c:1127 [inline]
> free_unref_page+0xde3/0x1130 mm/page_alloc.c:2657
> __folio_put+0x2c7/0x440 mm/swap.c:112
> pipe_buf_release include/linux/pipe_fs_i.h:219 [inline]
> pipe_update_tail fs/pipe.c:224 [inline]
> pipe_read+0x6ed/0x13e0 fs/pipe.c:344
> new_sync_read fs/read_write.c:484 [inline]
> vfs_read+0x991/0xb70 fs/read_write.c:565
> ksys_read+0x18f/0x2b0 fs/read_write.c:708
> do_syscall_x64 arch/x86/entry/common.c:52 [inline]
> do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
> entry_SYSCALL_64_after_hwframe+0x77/0x7f
> Modules linked in:
> CPU: 0 UID: 0 PID: 5820 Comm: syz-executor285 Tainted: G B 6.13.0-rc1-syzkaller-00337-g7503345ac5f5 #0
> Tainted: [B]=BAD_PAGE
> Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
> Call Trace:
> <TASK>
> __dump_stack lib/dump_stack.c:94 [inline]
> dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
> bad_page+0x176/0x1d0 mm/page_alloc.c:501
> free_page_is_bad mm/page_alloc.c:923 [inline]
> free_pages_prepare mm/page_alloc.c:1119 [inline]
> free_unref_page+0x1048/0x1130 mm/page_alloc.c:2657
> bpf_xdp_shrink_data net/core/filter.c:4148 [inline]
> bpf_xdp_frags_shrink_tail+0x3ee/0x7e0 net/core/filter.c:4169
> ____bpf_xdp_adjust_tail net/core/filter.c:4194 [inline]
> bpf_xdp_adjust_tail+0x1c3/0x200 net/core/filter.c:4187
> bpf_prog_f476d5219b92964a+0x1e/0x20
> __bpf_prog_run include/linux/filter.h:701 [inline]
> bpf_prog_run_xdp include/net/xdp.h:514 [inline]
> bpf_prog_run_generic_xdp+0x686/0x1510 net/core/dev.c:4973
> netif_receive_generic_xdp net/core/dev.c:5086 [inline]
> do_xdp_generic+0x757/0xd30 net/core/dev.c:5148
> __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
> __netif_receive_skb_one_core net/core/dev.c:5670 [inline]
> __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
> netif_receive_skb_internal net/core/dev.c:5871 [inline]
> netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
> tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
> tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
> tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
> new_sync_write fs/read_write.c:586 [inline]
> vfs_write+0xaeb/0xd30 fs/read_write.c:679
> ksys_write+0x18f/0x2b0 fs/read_write.c:731
> do_syscall_x64 arch/x86/entry/common.c:52 [inline]
> do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
> entry_SYSCALL_64_after_hwframe+0x77/0x7f
> RIP: 0033:0x7f941abf7db0
> Code: 40 00 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 80 3d f1 e2 07 00 00 74 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89
> RSP: 002b:00007ffc09852f28 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
> RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f941abf7db0
> RDX: 0000000000011dc0 RSI: 00000000200004c0 RDI: 00000000000000c8
> RBP: 0000000000000000 R08: 00007ffc09853058 R09: 00007ffc09853058
> R10: 00007ffc09853058 R11: 0000000000000202 R12: 00007f941ac460de
> R13: 0000000000000000 R14: 00007ffc09852f60 R15: 00007ffc09852f50
> </TASK>
> BUG: Bad page state in process syz-executor285 pfn:2d300
> page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88802d304000 pfn:0x2d300
> flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
> raw: 00fff00000000000 dead000000000040 ffff888022ab2000 0000000000000000
> raw: ffff88802d304000 0000000000000001 00000000ffffffff 0000000000000000
> page dumped because: page_pool leak
> page_owner tracks the page as allocated
> page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5820, tgid 5820 (syz-executor285), ts 62999472559, free_ts 55944400344
> set_page_owner include/linux/page_owner.h:32 [inline]
> post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1556
> prep_new_page mm/page_alloc.c:1564 [inline]
> get_page_from_freelist+0x3651/0x37a0 mm/page_alloc.c:3474
> __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4751
> alloc_pages_bulk_noprof+0x70b/0xcc0 mm/page_alloc.c:4699
> alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline]
> __page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538
> page_pool_alloc_netmem net/core/page_pool.c:590 [inline]
> page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597
> page_pool_alloc include/net/page_pool/helpers.h:129 [inline]
> page_pool_dev_alloc include/net/page_pool/helpers.h:167 [inline]
> skb_pp_cow_data+0xc43/0x1640 net/core/skbuff.c:983
> netif_skb_check_for_xdp net/core/dev.c:5041 [inline]
> netif_receive_generic_xdp net/core/dev.c:5080 [inline]
> do_xdp_generic+0x505/0xd30 net/core/dev.c:5148
> __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
> __netif_receive_skb_one_core net/core/dev.c:5670 [inline]
> __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
> netif_receive_skb_internal net/core/dev.c:5871 [inline]
> netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
> tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
> tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
> tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
> new_sync_write fs/read_write.c:586 [inline]
> vfs_write+0xaeb/0xd30 fs/read_write.c:679
> ksys_write+0x18f/0x2b0 fs/read_write.c:731
> page last free pid 5810 tgid 5810 stack trace:
> reset_page_owner include/linux/page_owner.h:25 [inline]
> free_pages_prepare mm/page_alloc.c:1127 [inline]
> free_unref_page+0xde3/0x1130 mm/page_alloc.c:2657
> __folio_put+0x2c7/0x440 mm/swap.c:112
> pipe_buf_release include/linux/pipe_fs_i.h:219 [inline]
> pipe_update_tail fs/pipe.c:224 [inline]
> pipe_read+0x6ed/0x13e0 fs/pipe.c:344
> new_sync_read fs/read_write.c:484 [inline]
> vfs_read+0x991/0xb70 fs/read_write.c:565
> ksys_read+0x18f/0x2b0 fs/read_write.c:708
> do_syscall_x64 arch/x86/entry/common.c:52 [inline]
> do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
> entry_SYSCALL_64_after_hwframe+0x77/0x7f
> Modules linked in:
> CPU: 0 UID: 0 PID: 5820 Comm: syz-executor285 Tainted: G B 6.13.0-rc1-syzkaller-00337-g7503345ac5f5 #0
> Tainted: [B]=BAD_PAGE
> Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
> Call Trace:
> <TASK>
> __dump_stack lib/dump_stack.c:94 [inline]
> dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
> bad_page+0x176/0x1d0 mm/page_alloc.c:501
> free_page_is_bad mm/page_alloc.c:923 [inline]
> free_pages_prepare mm/page_alloc.c:1119 [inline]
> free_unref_page+0x1048/0x1130 mm/page_alloc.c:2657
> bpf_xdp_shrink_data net/core/filter.c:4148 [inline]
> bpf_xdp_frags_shrink_tail+0x3ee/0x7e0 net/core/filter.c:4169
> ____bpf_xdp_adjust_tail net/core/filter.c:4194 [inline]
> bpf_xdp_adjust_tail+0x1c3/0x200 net/core/filter.c:4187
> bpf_prog_f476d5219b92964a+0x1e/0x20
> __bpf_prog_run include/linux/filter.h:701 [inline]
> bpf_prog_run_xdp include/net/xdp.h:514 [inline]
> bpf_prog_run_generic_xdp+0x686/0x1510 net/core/dev.c:4973
> netif_receive_generic_xdp net/core/dev.c:5086 [inline]
> do_xdp_generic+0x757/0xd30 net/core/dev.c:5148
> __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
> __netif_receive_skb_one_core net/core/dev.c:5670 [inline]
> __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
> netif_receive_skb_internal net/core/dev.c:5871 [inline]
> netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
> tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
> tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
> tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
> new_sync_write fs/read_write.c:586 [inline]
> vfs_write+0xaeb/0xd30 fs/read_write.c:679
> ksys_write+0x18f/0x2b0 fs/read_write.c:731
> do_syscall_x64 arch/x86/entry/common.c:52 [inline]
> do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
> entry_SYSCALL_64_after_hwframe+0x77/0x7f
> RIP: 0033:0x7f941abf7db0
> Code: 40 00 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 80 3d f1 e2 07 00 00 74 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89
> RSP: 002b:00007ffc09852f28 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
> RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f941abf7db0
> RDX: 0000000000011dc0 RSI: 00000000200004c0 RDI: 00000000000000c8
> RBP: 0000000000000000 R08: 00007ffc09853058 R09: 00007ffc09853058
> R10: 00007ffc09853058 R11: 0000000000000202 R12: 00007f941ac460de
> R13: 0000000000000000 R14: 00007ffc09852f60 R15: 00007ffc09852f50
> </TASK>
> BUG: Bad page state in process syz-executor285 pfn:72d3b
> page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x72d3b
> flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
> raw: 00fff00000000000 dead000000000040 ffff888022ab2000 0000000000000000
> raw: 0000000000000000 0000000000000001 00000000ffffffff 0000000000000000
> page dumped because: page_pool leak
> page_owner tracks the page as allocated
> page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5820, tgid 5820 (syz-executor285), ts 62999466297, free_ts 54575113729
> set_page_owner include/linux/page_owner.h:32 [inline]
> post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1556
> prep_new_page mm/page_alloc.c:1564 [inline]
> get_page_from_freelist+0x3651/0x37a0 mm/page_alloc.c:3474
> __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4751
> alloc_pages_bulk_noprof+0x70b/0xcc0 mm/page_alloc.c:4699
> alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline]
> __page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538
> page_pool_alloc_netmem net/core/page_pool.c:590 [inline]
> page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597
> page_pool_alloc include/net/page_pool/helpers.h:129 [inline]
> page_pool_dev_alloc include/net/page_pool/helpers.h:167 [inline]
> skb_pp_cow_data+0xc43/0x1640 net/core/skbuff.c:983
> netif_skb_check_for_xdp net/core/dev.c:5041 [inline]
> netif_receive_generic_xdp net/core/dev.c:5080 [inline]
> do_xdp_generic+0x505/0xd30 net/core/dev.c:5148
> __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
> __netif_receive_skb_one_core net/core/dev.c:5670 [inline]
> __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
> netif_receive_skb_internal net/core/dev.c:5871 [inline]
> netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
> tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
> tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
> tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
> new_sync_write fs/read_write.c:586 [inline]
> vfs_write+0xaeb/0xd30 fs/read_write.c:679
> ksys_write+0x18f/0x2b0 fs/read_write.c:731
> page last free pid 5807 tgid 5807 stack trace:
> reset_page_owner include/linux/page_owner.h:25 [inline]
> free_pages_prepare mm/page_alloc.c:1127 [inline]
> free_unref_page+0xde3/0x1130 mm/page_alloc.c:2657
> __folio_put+0x2c7/0x440 mm/swap.c:112
> pipe_buf_release include/linux/pipe_fs_i.h:219 [inline]
> pipe_update_tail fs/pipe.c:224 [inline]
> pipe_read+0x6ed/0x13e0 fs/pipe.c:344
> new_sync_read fs/read_write.c:484 [inline]
> vfs_read+0x991/0xb70 fs/read_write.c:565
> ksys_read+0x18f/0x2b0 fs/read_write.c:708
> do_syscall_x64 arch/x86/entry/common.c:52 [inline]
> do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
> entry_SYSCALL_64_after_hwframe+0x77/0x7f
> Modules linked in:
> CPU: 0 UID: 0 PID: 5820 Comm: syz-executor285 Tainted: G B 6.13.0-rc1-syzkaller-00337-g7503345ac5f5 #0
> Tainted: [B]=BAD_PAGE
> Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
> Call Trace:
> <TASK>
> __dump_stack lib/dump_stack.c:94 [inline]
> dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
> bad_page+0x176/0x1d0 mm/page_alloc.c:501
> free_page_is_bad mm/page_alloc.c:923 [inline]
> free_pages_prepare mm/page_alloc.c:1119 [inline]
> free_unref_page+0x1048/0x1130 mm/page_alloc.c:2657
> bpf_xdp_shrink_data net/core/filter.c:4148 [inline]
> bpf_xdp_frags_shrink_tail+0x3ee/0x7e0 net/core/filter.c:4169
> ____bpf_xdp_adjust_tail net/core/filter.c:4194 [inline]
> bpf_xdp_adjust_tail+0x1c3/0x200 net/core/filter.c:4187
> bpf_prog_f476d5219b92964a+0x1e/0x20
> __bpf_prog_run include/linux/filter.h:701 [inline]
> bpf_prog_run_xdp include/net/xdp.h:514 [inline]
> bpf_prog_run_generic_xdp+0x686/0x1510 net/core/dev.c:4973
> netif_receive_generic_xdp net/core/dev.c:5086 [inline]
> do_xdp_generic+0x757/0xd30 net/core/dev.c:5148
> __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
> __netif_receive_skb_one_core net/core/dev.c:5670 [inline]
> __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
> netif_receive_skb_internal net/core/dev.c:5871 [inline]
> netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
> tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
> tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
> tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
> new_sync_write fs/read_write.c:586 [inline]
> vfs_write+0xaeb/0xd30 fs/read_write.c:679
> ksys_write+0x18f/0x2b0 fs/read_write.c:731
> do_syscall_x64 arch/x86/entry/common.c:52 [inline]
> do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
> entry_SYSCALL_64_after_hwframe+0x77/0x7f
> RIP: 0033:0x7f941abf7db0
> Code: 40 00 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 80 3d f1 e2 07 00 00 74 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89
> RSP: 002b:00007ffc09852f28 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
> RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f941abf7db0
> RDX: 0000000000011dc0 RSI: 00000000200004c0 RDI: 00000000000000c8
> RBP: 0000000000000000 R08: 00007ffc09853058 R09: 00007ffc09853058
> R10: 00007ffc09853058 R11: 0000000000000202 R12: 00007f941ac460de
> R13: 0000000000000000 R14: 00007ffc09852f60 R15: 00007ffc09852f50
> </TASK>
> BUG: Bad page state in process syz-executor285 pfn:72d3a
> page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x72d3a
> flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
> raw: 00fff00000000000 dead000000000040 ffff888022ab2000 0000000000000000
> raw: 0000000000000000 0000000000000001 00000000ffffffff 0000000000000000
> page dumped because: page_pool leak
> page_owner tracks the page as allocated
> page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5820, tgid 5820 (syz-executor285), ts 62999460106, free_ts 54575122306
> set_page_owner include/linux/page_owner.h:32 [inline]
> post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1556
> prep_new_page mm/page_alloc.c:1564 [inline]
> get_page_from_freelist+0x3651/0x37a0 mm/page_alloc.c:3474
> __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4751
> alloc_pages_bulk_noprof+0x70b/0xcc0 mm/page_alloc.c:4699
> alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline]
> __page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538
> page_pool_alloc_netmem net/core/page_pool.c:590 [inline]
> page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597
> page_pool_alloc include/net/page_pool/helpers.h:129 [inline]
> page_pool_dev_alloc include/net/page_pool/helpers.h:167 [inline]
> skb_pp_cow_data+0xc43/0x1640 net/core/skbuff.c:983
> netif_skb_check_for_xdp net/core/dev.c:5041 [inline]
> netif_receive_generic_xdp net/core/dev.c:5080 [inline]
> do_xdp_generic+0x505/0xd30 net/core/dev.c:5148
> __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
> __netif_receive_skb_one_core net/core/dev.c:5670 [inline]
> __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
> netif_receive_skb_internal net/core/dev.c:5871 [inline]
> netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
> tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
> tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
> tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
> new_sync_write fs/read_write.c:586 [inline]
> vfs_write+0xaeb/0xd30 fs/read_write.c:679
> ksys_write+0x18f/0x2b0 fs/read_write.c:731
> page last free pid 5807 tgid 5807 stack trace:
> reset_page_owner include/linux/page_owner.h:25 [inline]
> free_pages_prepare mm/page_alloc.c:1127 [inline]
> free_unref_page+0xde3/0x1130 mm/page_alloc.c:2657
> __folio_put+0x2c7/0x440 mm/swap.c:112
> pipe_buf_release include/linux/pipe_fs_i.h:219 [inline]
> pipe_update_tail fs/pipe.c:224 [inline]
> pipe_read+0x6ed/0x13e0 fs/pipe.c:344
> new_sync_read fs/read_write.c:484 [inline]
> vfs_read+0x991/0xb70 fs/read_write.c:565
> ksys_read+0x18f/0x2b0 fs/read_write.c:708
> do_syscall_x64 arch/x86/entry/common.c:52 [inline]
> do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
> entry_SYSCALL_64_after_hwframe+0x77/0x7f
> Modules linked in:
> CPU: 0 UID: 0 PID: 5820 Comm: syz-executor285 Tainted: G B 6.13.0-rc1-syzkaller-00337-g7503345ac5f5 #0
> Tainted: [B]=BAD_PAGE
> Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
> Call Trace:
> <TASK>
> __dump_stack lib/dump_stack.c:94 [inline]
> dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
> bad_page+0x176/0x1d0 mm/page_alloc.c:501
> free_page_is_bad mm/page_alloc.c:923 [inline]
> free_pages_prepare mm/page_alloc.c:1119 [inline]
> free_unref_page+0x1048/0x1130 mm/page_alloc.c:2657
> bpf_xdp_shrink_data net/core/filter.c:4148 [inline]
> bpf_xdp_frags_shrink_tail+0x3ee/0x7e0 net/core/filter.c:4169
> ____bpf_xdp_adjust_tail net/core/filter.c:4194 [inline]
> bpf_xdp_adjust_tail+0x1c3/0x200 net/core/filter.c:4187
> bpf_prog_f476d5219b92964a+0x1e/0x20
> __bpf_prog_run include/linux/filter.h:701 [inline]
> bpf_prog_run_xdp include/net/xdp.h:514 [inline]
> bpf_prog_run_generic_xdp+0x686/0x1510 net/core/dev.c:4973
> netif_receive_generic_xdp net/core/dev.c:5086 [inline]
> do_xdp_generic+0x757/0xd30 net/core/dev.c:5148
> __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
> __netif_receive_skb_one_core net/core/dev.c:5670 [inline]
> __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
> netif_receive_skb_internal net/core/dev.c:5871 [inline]
> netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
> tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
> tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
> tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
> new_sync_write fs/read_write.c:586 [inline]
> vfs_write+0xaeb/0xd30 fs/read_write.c:679
> ksys_write+0x18f/0x2b0 fs/read_write.c:731
> do_syscall_x64 arch/x86/entry/common.c:52 [inline]
> do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
> entry_SYSCALL_64_after_hwframe+0x77/0x7f
> RIP: 0033:0x7f941abf7db0
> Code: 40 00 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 80 3d f1 e2 07 00 00 74 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89
> RSP: 002b:00007ffc09852f28 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
> RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f941abf7db0
> RDX: 0000000000011dc0 RSI: 00000000200004c0 RDI: 00000000000000c8
> RBP: 0000000000000000 R08: 00007ffc09853058 R09: 00007ffc09853058
> R10: 00007ffc09853058 R11: 0000000000000202 R12: 00007f941ac460de
> R13: 0000000000000000 R14: 00007ffc09852f60 R15: 00007ffc09852f50
> </TASK>
> BUG: Bad page state in process syz-executor285 pfn:72d39
> page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x72d39
> flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
> raw: 00fff00000000000 dead000000000040 ffff888022ab2000 0000000000000000
> raw: 0000000000000000 0000000000000001 00000000ffffffff 0000000000000000
> page dumped because: page_pool leak
> page_owner tracks the page as allocated
> page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5820, tgid 5820 (syz-executor285), ts 62999453972, free_ts 54575963863
> set_page_owner include/linux/page_owner.h:32 [inline]
> post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1556
> prep_new_page mm/page_alloc.c:1564 [inline]
> get_page_from_freelist+0x3651/0x37a0 mm/page_alloc.c:3474
> __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4751
> alloc_pages_bulk_noprof+0x70b/0xcc0 mm/page_alloc.c:4699
> alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline]
> __page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538
> page_pool_alloc_netmem net/core/page_pool.c:590 [inline]
> page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597
> page_pool_alloc include/net/page_pool/helpers.h:129 [inline]
> page_pool_dev_alloc include/net/page_pool/helpers.h:167 [inline]
> skb_pp_cow_data+0xc43/0x1640 net/core/skbuff.c:983
> netif_skb_check_for_xdp net/core/dev.c:5041 [inline]
> netif_receive_generic_xdp net/core/dev.c:5080 [inline]
> do_xdp_generic+0x505/0xd30 net/core/dev.c:5148
> __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
> __netif_receive_skb_one_core net/core/dev.c:5670 [inline]
> __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
> netif_receive_skb_internal net/core/dev.c:5871 [inline]
> netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
> tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
> tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
> tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
> new_sync_write fs/read_write.c:586 [inline]
> vfs_write+0xaeb/0xd30 fs/read_write.c:679
> ksys_write+0x18f/0x2b0 fs/read_write.c:731
> page last free pid 5807 tgid 5807 stack trace:
> reset_page_owner include/linux/page_owner.h:25 [inline]
> free_pages_prepare mm/page_alloc.c:1127 [inline]
> free_unref_page+0xde3/0x1130 mm/page_alloc.c:2657
> __folio_put+0x2c7/0x440 mm/swap.c:112
> pipe_buf_release include/linux/pipe_fs_i.h:219 [inline]
> pipe_update_tail fs/pipe.c:224 [inline]
> pipe_read+0x6ed/0x13e0 fs/pipe.c:344
> new_sync_read fs/read_write.c:484 [inline]
> vfs_read+0x991/0xb70 fs/read_write.c:565
> ksys_read+0x18f/0x2b0 fs/read_write.c:708
> do_syscall_x64 arch/x86/entry/common.c:52 [inline]
> do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
> entry_SYSCALL_64_after_hwframe+0x77/0x7f
> Modules linked in:
> CPU: 0 UID: 0 PID: 5820 Comm: syz-executor285 Tainted: G B 6.13.0-rc1-syzkaller-00337-g7503345ac5f5 #0
> Tainted: [B]=BAD_PAGE
> Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
> Call Trace:
> <TASK>
> __dump_stack lib/dump_stack.c:94 [inline]
> dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
> bad_page+0x176/0x1d0 mm/page_alloc.c:501
> free_page_is_bad mm/page_alloc.c:923 [inline]
> free_pages_prepare mm/page_alloc.c:1119 [inline]
> free_unref_page+0x1048/0x1130 mm/page_alloc.c:2657
> bpf_xdp_shrink_data net/core/filter.c:4148 [inline]
> bpf_xdp_frags_shrink_tail+0x3ee/0x7e0 net/core/filter.c:4169
> ____bpf_xdp_adjust_tail net/core/filter.c:4194 [inline]
> bpf_xdp_adjust_tail+0x1c3/0x200 net/core/filter.c:4187
> bpf_prog_f476d5219b92964a+0x1e/0x20
> __bpf_prog_run include/linux/filter.h:701 [inline]
> bpf_prog_run_xdp include/net/xdp.h:514 [inline]
> bpf_prog_run_generic_xdp+0x686/0x1510 net/core/dev.c:4973
> netif_receive_generic_xdp net/core/dev.c:5086 [inline]
> do_xdp_generic+0x757/0xd30 net/core/dev.c:5148
> __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
> __netif_receive_skb_one_core net/core/dev.c:5670 [inline]
> __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
> netif_receive_skb_internal net/core/dev.c:5871 [inline]
> netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
> tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
> tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
> tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
> new_sync_write fs/read_write.c:586 [inline]
> vfs_write+0xaeb/0xd30 fs/read_write.c:679
> ksys_write+0x18f/0x2b0 fs/read_write.c:731
> do_syscall_x64 arch/x86/entry/common.c:52 [inline]
> do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
> entry_SYSCALL_64_after_hwframe+0x77/0x7f
> RIP: 0033:0x7f941abf7db0
> Code: 40 00 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 80 3d f1 e2 07 00 00 74 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89
> RSP: 002b:00007ffc09852f28 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
> RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f941abf7db0
> RDX: 0000000000011dc0 RSI: 00000000200004c0 RDI: 00000000000000c8
> RBP: 0000000000000000 R08: 00007ffc09853058 R09: 00007ffc09853058
> R10: 00007ffc09853058 R11: 0000000000000202 R12: 00007f941ac460de
> R13: 0000000000000000 R14: 00007ffc09852f60 R15: 00007ffc09852f50
> </TASK>
> BUG: Bad page state in process syz-executor285 pfn:72d38
> page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x72d38
> flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
> raw: 00fff00000000000 dead000000000040 ffff888022ab2000 0000000000000000
> raw: 0000000000000000 0000000000000001 00000000ffffffff 0000000000000000
> page dumped because: page_pool leak
> page_owner tracks the page as allocated
> page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5820, tgid 5820 (syz-executor285), ts 62999447572, free_ts 54575218247
> set_page_owner include/linux/page_owner.h:32 [inline]
> post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1556
> prep_new_page mm/page_alloc.c:1564 [inline]
> get_page_from_freelist+0x3651/0x37a0 mm/page_alloc.c:3474
> __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4751
> alloc_pages_bulk_noprof+0x70b/0xcc0 mm/page_alloc.c:4699
> alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline]
> __page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538
> page_pool_alloc_netmem net/core/page_pool.c:590 [inline]
> page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597
> page_pool_alloc include/net/page_pool/helpers.h:129 [inline]
> page_pool_dev_alloc include/net/page_pool/helpers.h:167 [inline]
> skb_pp_cow_data+0xc43/0x1640 net/core/skbuff.c:983
> netif_skb_check_for_xdp net/core/dev.c:5041 [inline]
> netif_receive_generic_xdp net/core/dev.c:5080 [inline]
> do_xdp_generic+0x505/0xd30 net/core/dev.c:5148
> __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
> __netif_receive_skb_one_core net/core/dev.c:5670 [inline]
> __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
> netif_receive_skb_internal net/core/dev.c:5871 [inline]
> netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
> tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
> tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
> tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
> new_sync_write fs/read_write.c:586 [inline]
> vfs_write+0xaeb/0xd30 fs/read_write.c:679
> ksys_write+0x18f/0x2b0 fs/read_write.c:731
> page last free pid 5807 tgid 5807 stack trace:
> reset_page_owner include/linux/page_owner.h:25 [inline]
> free_pages_prepare mm/page_alloc.c:1127 [inline]
> free_unref_page+0xde3/0x1130 mm/page_alloc.c:2657
> __folio_put+0x2c7/0x440 mm/swap.c:112
> pipe_buf_release include/linux/pipe_fs_i.h:219 [inline]
> pipe_update_tail fs/pipe.c:224 [inline]
> pipe_read+0x6ed/0x13e0 fs/pipe.c:344
> new_sync_read fs/read_write.c:484 [inline]
> vfs_read+0x991/0xb70 fs/read_write.c:565
> ksys_read+0x18f/0x2b0 fs/read_write.c:708
> do_syscall_x64 arch/x86/entry/common.c:52 [inline]
> do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
> entry_SYSCALL_64_after_hwframe+0x77/0x7f
> Modules linked in:
> CPU: 0 UID: 0 PID: 5820 Comm: syz-executor285 Tainted: G B 6.13.0-rc1-syzkaller-00337-g7503345ac5f5 #0
> Tainted: [B]=BAD_PAGE
> Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
> Call Trace:
> <TASK>
> __dump_stack lib/dump_stack.c:94 [inline]
> dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
> bad_page+0x176/0x1d0 mm/page_alloc.c:501
> free_page_is_bad mm/page_alloc.c:923 [inline]
> free_pages_prepare mm/page_alloc.c:1119 [inline]
> free_unref_page+0x1048/0x1130 mm/page_alloc.c:2657
> bpf_xdp_shrink_data net/core/filter.c:4148 [inline]
> bpf_xdp_frags_shrink_tail+0x3ee/0x7e0 net/core/filter.c:4169
> ____bpf_xdp_adjust_tail net/core/filter.c:4194 [inline]
> bpf_xdp_adjust_tail+0x1c3/0x200 net/core/filter.c:4187
> bpf_prog_f476d5219b92964a+0x1e/0x20
> __bpf_prog_run include/linux/filter.h:701 [inline]
> bpf_prog_run_xdp include/net/xdp.h:514 [inline]
> bpf_prog_run_generic_xdp+0x686/0x1510 net/core/dev.c:4973
> netif_receive_generic_xdp net/core/dev.c:5086 [inline]
> do_xdp_generic+0x757/0xd30 net/core/dev.c:5148
> __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
> __netif_receive_skb_one_core net/core/dev.c:5670 [inline]
> __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
> netif_receive_skb_internal net/core/dev.c:5871 [inline]
> netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
> tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
> tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
> tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
> new_sync_write fs/read_write.c:586 [inline]
> vfs_write+0xaeb/0xd30 fs/read_write.c:679
> ksys_write+0x18f/0x2b0 fs/read_write.c:731
> do_syscall_x64 arch/x86/entry/common.c:52 [inline]
> do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
> entry_SYSCALL_64_after_hwframe+0x77/0x7f
> RIP: 0033:0x7f941abf7db0
> Code: 40 00 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 80 3d f1 e2 07 00 00 74 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89
> RSP: 002b:00007ffc09852f28 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
> RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f941abf7db0
> RDX: 0000000000011dc0 RSI: 00000000200004c0 RDI: 00000000000000c8
> RBP: 0000000000000000 R08: 00007ffc09853058 R09: 00007ffc09853058
> R10: 00007ffc09853058 R11: 0000000000000202 R12: 00007f941ac460de
> R13: 0000000000000000 R14: 00007ffc09852f60 R15: 00007ffc09852f50
> </TASK>
> BUG: Bad page state in process syz-executor285 pfn:76907
> page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x76907
> flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
> raw: 00fff00000000000 dead000000000040 ffff888022ab2000 0000000000000000
> raw: 0000000000000000 0000000000000001 00000000ffffffff 0000000000000000
> page dumped because: page_pool leak
> page_owner tracks the page as allocated
> page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5820, tgid 5820 (syz-executor285), ts 62999441200, free_ts 54582364655
> set_page_owner include/linux/page_owner.h:32 [inline]
> post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1556
> prep_new_page mm/page_alloc.c:1564 [inline]
> get_page_from_freelist+0x3651/0x37a0 mm/page_alloc.c:3474
> __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4751
> alloc_pages_bulk_noprof+0x70b/0xcc0 mm/page_alloc.c:4699
> alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline]
> __page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538
> page_pool_alloc_netmem net/core/page_pool.c:590 [inline]
> page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597
> page_pool_alloc include/net/page_pool/helpers.h:129 [inline]
> page_pool_dev_alloc include/net/page_pool/helpers.h:167 [inline]
> skb_pp_cow_data+0xc43/0x1640 net/core/skbuff.c:983
> netif_skb_check_for_xdp net/core/dev.c:5041 [inline]
> netif_receive_generic_xdp net/core/dev.c:5080 [inline]
> do_xdp_generic+0x505/0xd30 net/core/dev.c:5148
> __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
> __netif_receive_skb_one_core net/core/dev.c:5670 [inline]
> __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
> netif_receive_skb_internal net/core/dev.c:5871 [inline]
> netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
> tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
> tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
> tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
> new_sync_write fs/read_write.c:586 [inline]
> vfs_write+0xaeb/0xd30 fs/read_write.c:679
> ksys_write+0x18f/0x2b0 fs/read_write.c:731
> page last free pid 5807 tgid 5807 stack trace:
> reset_page_owner include/linux/page_owner.h:25 [inline]
> free_pages_prepare mm/page_alloc.c:1127 [inline]
> free_unref_page+0xde3/0x1130 mm/page_alloc.c:2657
> __folio_put+0x2c7/0x440 mm/swap.c:112
> pipe_buf_release include/linux/pipe_fs_i.h:219 [inline]
> pipe_update_tail fs/pipe.c:224 [inline]
> pipe_read+0x6ed/0x13e0 fs/pipe.c:344
> new_sync_read fs/read_write.c:484 [inline]
> vfs_read+0x991/0xb70 fs/read_write.c:565
> ksys_read+0x18f/0x2b0 fs/read_write.c:708
> do_syscall_x64 arch/x86/entry/common.c:52 [inline]
> do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
> entry_SYSCALL_64_after_hwframe+0x77/0x7f
> Modules linked in:
> CPU: 0 UID: 0 PID: 5820 Comm: syz-executor285 Tainted: G B 6.13.0-rc1-syzkaller-00337-g7503345ac5f5 #0
> Tainted: [B]=BAD_PAGE
> Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
> Call Trace:
> <TASK>
> __dump_stack lib/dump_stack.c:94 [inline]
> dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
> bad_page+0x176/0x1d0 mm/page_alloc.c:501
> free_page_is_bad mm/page_alloc.c:923 [inline]
> free_pages_prepare mm/page_alloc.c:1119 [inline]
> free_unref_page+0x1048/0x1130 mm/page_alloc.c:2657
> bpf_xdp_shrink_data net/core/filter.c:4148 [inline]
> bpf_xdp_frags_shrink_tail+0x3ee/0x7e0 net/core/filter.c:4169
> ____bpf_xdp_adjust_tail net/core/filter.c:4194 [inline]
> bpf_xdp_adjust_tail+0x1c3/0x200 net/core/filter.c:4187
> bpf_prog_f476d5219b92964a+0x1e/0x20
> __bpf_prog_run include/linux/filter.h:701 [inline]
> bpf_prog_run_xdp include/net/xdp.h:514 [inline]
> bpf_prog_run_generic_xdp+0x686/0x1510 net/core/dev.c:4973
> netif_receive_generic_xdp net/core/dev.c:5086 [inline]
> do_xdp_generic+0x757/0xd30 net/core/dev.c:5148
> __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
> __netif_receive_skb_one_core net/core/dev.c:5670 [inline]
> __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
> netif_receive_skb_internal net/core/dev.c:5871 [inline]
> netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
> tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
> tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
> tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
> new_sync_write fs/read_write.c:586 [inline]
> vfs_write+0xaeb/0xd30 fs/read_write.c:679
> ksys_write+0x18f/0x2b0 fs/read_write.c:731
> do_syscall_x64 arch/x86/entry/common.c:52 [inline]
> do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
> entry_SYSCALL_64_after_hwframe+0x77/0x7f
> RIP: 0033:0x7f941abf7db0
> Code: 40 00 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 80 3d f1 e2 07 00 00 74 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89
> RSP: 002b:00007ffc09852f28 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
> RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f941abf7db0
> RDX: 0000000000011dc0 RSI: 00000000200004c0 RDI: 00000000000000c8
> RBP: 0000000000000000 R08: 00007ffc09853058 R09: 00007ffc09853058
> R10: 00007ffc09853058 R11: 0000000000000202 R12: 00007f941ac460de
> R13: 0000000000000000 R14: 00007ffc09852f60 R15: 00007ffc09852f50
> </TASK>
> BUG: Bad page state in process syz-executor285 pfn:76906
> page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x76906
> flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
> raw: 00fff00000000000 dead000000000040 ffff888022ab2000 0000000000000000
> raw: 0000000000000000 0000000000000001 00000000ffffffff 0000000000000000
> page dumped because: page_pool leak
> page_owner tracks the page as allocated
> page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5820, tgid 5820 (syz-executor285), ts 62999421067, free_ts 54582851254
> set_page_owner include/linux/page_owner.h:32 [inline]
> post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1556
> prep_new_page mm/page_alloc.c:1564 [inline]
> get_page_from_freelist+0x3651/0x37a0 mm/page_alloc.c:3474
> __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4751
> alloc_pages_bulk_noprof+0x70b/0xcc0 mm/page_alloc.c:4699
> alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline]
> __page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538
> page_pool_alloc_netmem net/core/page_pool.c:590 [inline]
> page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597
> page_pool_alloc include/net/page_pool/helpers.h:129 [inline]
> page_pool_dev_alloc include/net/page_pool/helpers.h:167 [inline]
> skb_pp_cow_data+0xc43/0x1640 net/core/skbuff.c:983
> netif_skb_check_for_xdp net/core/dev.c:5041 [inline]
> netif_receive_generic_xdp net/core/dev.c:5080 [inline]
> do_xdp_generic+0x505/0xd30 net/core/dev.c:5148
> __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
> __netif_receive_skb_one_core net/core/dev.c:5670 [inline]
> __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
> netif_receive_skb_internal net/core/dev.c:5871 [inline]
> netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
> tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
> tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
> tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
> new_sync_write fs/read_write.c:586 [inline]
> vfs_write+0xaeb/0xd30 fs/read_write.c:679
> ksys_write+0x18f/0x2b0 fs/read_write.c:731
> page last free pid 5807 tgid 5807 stack trace:
> reset_page_owner include/linux/page_owner.h:25 [inline]
> free_pages_prepare mm/page_alloc.c:1127 [inline]
> free_unref_page+0xde3/0x1130 mm/page_alloc.c:2657
> __folio_put+0x2c7/0x440 mm/swap.c:112
> pipe_buf_release include/linux/pipe_fs_i.h:219 [inline]
> pipe_update_tail fs/pipe.c:224 [inline]
> pipe_read+0x6ed/0x13e0 fs/pipe.c:344
> new_sync_read fs/read_write.c:484 [inline]
> vfs_read+0x991/0xb70 fs/read_write.c:565
> ksys_read+0x18f/0x2b0 fs/read_write.c:708
> do_syscall_x64 arch/x86/entry/common.c:52 [inline]
> do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
> entry_SYSCALL_64_after_hwframe+0x77/0x7f
> Modules linked in:
> CPU: 0 UID: 0 PID: 5820 Comm: syz-executor285 Tainted: G B 6.13.0-rc1-syzkaller-00337-g7503345ac5f5 #0
> Tainted: [B]=BAD_PAGE
> Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
> Call Trace:
> <TASK>
> __dump_stack lib/dump_stack.c:94 [inline]
> dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
> bad_page+0x176/0x1d0 mm/page_alloc.c:501
> free_page_is_bad mm/page_alloc.c:923 [inline]
> free_pages_prepare mm/page_alloc.c:1119 [inline]
> free_unref_page+0x1048/0x1130 mm/page_alloc.c:2657
> bpf_xdp_shrink_data net/core/filter.c:4148 [inline]
> bpf_xdp_frags_shrink_tail+0x3ee/0x7e0 net/core/filter.c:4169
> ____bpf_xdp_adjust_tail net/core/filter.c:4194 [inline]
> bpf_xdp_adjust_tail+0x1c3/0x200 net/core/filter.c:4187
> bpf_prog_f476d5219b92964a+0x1e/0x20
> __bpf_prog_run include/linux/filter.h:701 [inline]
> bpf_prog_run_xdp include/net/xdp.h:514 [inline]
> bpf_prog_run_generic_xdp+0x686/0x1510 net/core/dev.c:4973
> netif_receive_generic_xdp net/core/dev.c:5086 [inline]
> do_xdp_generic+0x757/0xd30 net/core/dev.c:5148
> __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
> __netif_receive_skb_one_core net/core/dev.c:5670 [inline]
> __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
> netif_receive_skb_internal net/core/dev.c:5871 [inline]
> netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
> tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
> tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
> tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
> new_sync_write fs/read_write.c:586 [inline]
> vfs_write+0xaeb/0xd30 fs/read_write.c:679
> ksys_write+0x18f/0x2b0 fs/read_write.c:731
> do_syscall_x64 arch/x86/entry/common.c:52 [inline]
> do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
> entry_SYSCALL_64_after_hwframe+0x77/0x7f
> RIP: 0033:0x7f941abf7db0
> Code: 40 00 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 80 3d f1 e2 07 00 00 74 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89
> RSP: 002b:00007ffc09852f28 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
> RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f941abf7db0
> RDX: 0000000000011dc0 RSI: 00000000200004c0 RDI: 00000000000000c8
> RBP: 0000000000000000 R08: 00007ffc09853058 R09: 00007ffc09853058
> R10: 00007ffc09853058 R11: 0000000000000202 R12: 00007f941ac460de
> R13: 0000000000000000 R14: 00007ffc09852f60 R15: 00007ffc09852f50
> </TASK>
> BUG: Bad page state in process syz-executor285 pfn:76905
> page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x76905
> flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
> raw: 00fff00000000000 dead000000000040 ffff888022ab2000 0000000000000000
> raw: 0000000000000000 0000000000000001 00000000ffffffff 0000000000000000
> page dumped because: page_pool leak
> page_owner tracks the page as allocated
> page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5820, tgid 5820 (syz-executor285), ts 62999414838, free_ts 54582871367
> set_page_owner include/linux/page_owner.h:32 [inline]
> post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1556
> prep_new_page mm/page_alloc.c:1564 [inline]
> get_page_from_freelist+0x3651/0x37a0 mm/page_alloc.c:3474
> __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4751
> alloc_pages_bulk_noprof+0x70b/0xcc0 mm/page_alloc.c:4699
> alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline]
> __page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538
> page_pool_alloc_netmem net/core/page_pool.c:590 [inline]
> page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597
> page_pool_alloc include/net/page_pool/helpers.h:129 [inline]
> page_pool_dev_alloc include/net/page_pool/helpers.h:167 [inline]
> skb_pp_cow_data+0xc43/0x1640 net/core/skbuff.c:983
> netif_skb_check_for_xdp net/core/dev.c:5041 [inline]
> netif_receive_generic_xdp net/core/dev.c:5080 [inline]
> do_xdp_generic+0x505/0xd30 net/core/dev.c:5148
> __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
> __netif_receive_skb_one_core net/core/dev.c:5670 [inline]
> __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
> netif_receive_skb_internal net/core/dev.c:5871 [inline]
> netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
> tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
> tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
> tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
> new_sync_write fs/read_write.c:586 [inline]
> vfs_write+0xaeb/0xd30 fs/read_write.c:679
> ksys_write+0x18f/0x2b0 fs/read_write.c:731
> page last free pid 5807 tgid 5807 stack trace:
> reset_page_owner include/linux/page_owner.h:25 [inline]
> free_pages_prepare mm/page_alloc.c:1127 [inline]
> free_unref_page+0xde3/0x1130 mm/page_alloc.c:2657
> __folio_put+0x2c7/0x440 mm/swap.c:112
> pipe_buf_release include/linux/pipe_fs_i.h:219 [inline]
> pipe_update_tail fs/pipe.c:224 [inline]
> pipe_read+0x6ed/0x13e0 fs/pipe.c:344
> new_sync_read fs/read_write.c:484 [inline]
> vfs_read+0x991/0xb70 fs/read_write.c:565
> ksys_read+0x18f/0x2b0 fs/read_write.c:708
> do_syscall_x64 arch/x86/entry/common.c:52 [inline]
> do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
> entry_SYSCALL_64_after_hwframe+0x77/0x7f
> Modules linked in:
> CPU: 0 UID: 0 PID: 5820 Comm: syz-executor285 Tainted: G B 6.13.0-rc1-syzkaller-00337-g7503345ac5f5 #0
> Tainted: [B]=BAD_PAGE
> Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
> Call Trace:
> <TASK>
> __dump_stack lib/dump_stack.c:94 [inline]
> dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
> bad_page+0x176/0x1d0 mm/page_alloc.c:501
> free_page_is_bad mm/page_alloc.c:923 [inline]
> free_pages_prepare mm/page_alloc.c:1119 [inline]
> free_unref_page+0x1048/0x1130 mm/page_alloc.c:2657
> bpf_xdp_shrink_data net/core/filter.c:4148 [inline]
> bpf_xdp_frags_shrink_tail+0x3ee/0x7e0 net/core/filter.c:4169
> ____bpf_xdp_adjust_tail net/core/filter.c:4194 [inline]
> bpf_xdp_adjust_tail+0x1c3/0x200 net/core/filter.c:4187
> bpf_prog_f476d5219b92964a+0x1e/0x20
> __bpf_prog_run include/linux/filter.h:701 [inline]
> bpf_prog_run_xdp include/net/xdp.h:514 [inline]
> bpf_prog_run_generic_xdp+0x686/0x1510 net/core/dev.c:4973
> netif_receive_generic_xdp net/core/dev.c:5086 [inline]
> do_xdp_generic+0x757/0xd30 net/core/dev.c:5148
> __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
> __netif_receive_skb_one_core net/core/dev.c:5670 [inline]
> __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
> netif_receive_skb_internal net/core/dev.c:5871 [inline]
> netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
> tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
> tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
> tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
> new_sync_write fs/read_write.c:586 [inline]
> vfs_write+0xaeb/0xd30 fs/read_write.c:679
> ksys_write+0x18f/0x2b0 fs/read_write.c:731
> do_syscall_x64 arch/x86/entry/common.c:52 [inline]
> do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
> entry_SYSCALL_64_after_hwframe+0x77/0x7f
> RIP: 0033:0x7f941abf7db0
> Code: 40 00 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 80 3d f1 e2 07 00 00 74 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89
> RSP: 002b:00007ffc09852f28 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
> RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f941abf7db0
> RDX: 0000000000011dc0 RSI: 00000000200004c0 RDI: 00000000000000c8
> RBP: 0000000000000000 R08: 00007ffc09853058 R09: 00007ffc09853058
> R10: 00007ffc09853058 R11: 0000000000000202 R12: 00007f941ac460de
> R13: 0000000000000000 R14: 00007ffc09852f60 R15: 00007ffc09852f50
> </TASK>
> BUG: Bad page state in process syz-executor285 pfn:76904
> page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x76904
> flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
> raw: 00fff00000000000 dead000000000040 ffff888022ab2000 0000000000000000
> raw: 0000000000000000 0000000000000001 00000000ffffffff 0000000000000000
> page dumped because: page_pool leak
> page_owner tracks the page as allocated
> page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5820, tgid 5820 (syz-executor285), ts 62999408239, free_ts 54582895841
> set_page_owner include/linux/page_owner.h:32 [inline]
> post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1556
> prep_new_page mm/page_alloc.c:1564 [inline]
> get_page_from_freelist+0x3651/0x37a0 mm/page_alloc.c:3474
> __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4751
> alloc_pages_bulk_noprof+0x70b/0xcc0 mm/page_alloc.c:4699
> alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline]
> __page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538
> page_pool_alloc_netmem net/core/page_pool.c:590 [inline]
> page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597
> page_pool_alloc include/net/page_pool/helpers.h:129 [inline]
> page_pool_dev_alloc include/net/page_pool/helpers.h:167 [inline]
> skb_pp_cow_data+0xc43/0x1640 net/core/skbuff.c:983
> netif_skb_check_for_xdp net/core/dev.c:5041 [inline]
> netif_receive_generic_xdp net/core/dev.c:5080 [inline]
> do_xdp_generic+0x505/0xd30 net/core/dev.c:5148
> __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
> __netif_receive_skb_one_core net/core/dev.c:5670 [inline]
> __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
> netif_receive_skb_internal net/core/dev.c:5871 [inline]
> netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
> tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
> tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
> tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
> new_sync_write fs/read_write.c:586 [inline]
> vfs_write+0xaeb/0xd30 fs/read_write.c:679
> ksys_write+0x18f/0x2b0 fs/read_write.c:731
> page last free pid 5807 tgid 5807 stack trace:
> reset_page_owner include/linux/page_owner.h:25 [inline]
> free_pages_prepare mm/page_alloc.c:1127 [inline]
> free_unref_page+0xde3/0x1130 mm/page_alloc.c:2657
> __folio_put+0x2c7/0x440 mm/swap.c:112
> pipe_buf_release include/linux/pipe_fs_i.h:219 [inline]
> pipe_update_tail fs/pipe.c:224 [inline]
> pipe_read+0x6ed/0x13e0 fs/pipe.c:344
> new_sync_read fs/read_write.c:484 [inline]
> vfs_read+0x991/0xb70 fs/read_write.c:565
> ksys_read+0x18f/0x2b0 fs/read_write.c:708
> do_syscall_x64 arch/x86/entry/common.c:52 [inline]
> do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
> entry_SYSCALL_64_after_hwframe+0x77/0x7f
> Modules linked in:
> CPU: 0 UID: 0 PID: 5820 Comm: syz-executor285 Tainted: G B 6.13.0-rc1-syzkaller-00337-g7503345ac5f5 #0
> Tainted: [B]=BAD_PAGE
> Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
> Call Trace:
> <TASK>
> __dump_stack lib/dump_stack.c:94 [inline]
> dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
> bad_page+0x176/0x1d0 mm/page_alloc.c:501
> free_page_is_bad mm/page_alloc.c:923 [inline]
> free_pages_prepare mm/page_alloc.c:1119 [inline]
> free_unref_page+0x1048/0x1130 mm/page_alloc.c:2657
> bpf_xdp_shrink_data net/core/filter.c:4148 [inline]
> bpf_xdp_frags_shrink_tail+0x3ee/0x7e0 net/core/filter.c:4169
> ____bpf_xdp_adjust_tail net/core/filter.c:4194 [inline]
> bpf_xdp_adjust_tail+0x1c3/0x200 net/core/filter.c:4187
> bpf_prog_f476d5219b92964a+0x1e/0x20
> __bpf_prog_run include/linux/filter.h:701 [inline]
> bpf_prog_run_xdp include/net/xdp.h:514 [inline]
> bpf_prog_run_generic_xdp+0x686/0x1510 net/core/dev.c:4973
> netif_receive_generic_xdp net/core/dev.c:5086 [inline]
> do_xdp_generic+0x757/0xd30 net/core/dev.c:5148
> __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
> __netif_receive_skb_one_core net/core/dev.c:5670 [inline]
> __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
> netif_receive_skb_internal net/core/dev.c:5871 [inline]
> netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
> tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
> tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
> tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
> new_sync_write fs/read_write.c:586 [inline]
> vfs_write+0xaeb/0xd30 fs/read_write.c:679
> ksys_write+0x18f/0x2b0 fs/read_write.c:731
> do_syscall_x64 arch/x86/entry/common.c:52 [inline]
> do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
> entry_SYSCALL_64_after_hwframe+0x77/0x7f
> RIP: 0033:0x7f941abf7db0
> Code: 40 00 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 80 3d f1 e2 07 00 00 74 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89
> RSP: 002b:00007ffc09852f28 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
> RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f941abf7db0
> RDX: 0000000000011dc0 RSI: 00000000200004c0 RDI: 00000000000000c8
> RBP: 0000000000000000 R08: 00007ffc09853058 R09: 00007ffc09853058
> R10: 00007ffc09853058 R11: 0000000000000202 R12: 00007f941ac460de
> R13: 0000000000000000 R14: 00007ffc09852f60 R15: 00007ffc09852f50
> </TASK>
>
>
> ---
> This report is generated by a bot. It may contain errors.
> See https://goo.gl/tpsmEJ for more information about syzbot.
> syzbot engineers can be reached at syzkaller@googlegroups.com.
>
> syzbot will keep track of this issue. See:
> https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
> For information about bisection process see: https://goo.gl/tpsmEJ#bisection
>
> If the report is already addressed, let syzbot know by replying with:
> #syz fix: exact-commit-title
>
> If you want syzbot to run the reproducer, reply with:
> #syz test: git://repo/address.git branch-or-commit-hash
> If you attach or paste a git patch, syzbot will apply it before testing.
>
> If you want to overwrite report's subsystems, reply with:
> #syz set subsystems: new-subsystem
> (See the list of subsystem names on the web dashboard)
>
> If the report is a duplicate of another one, reply with:
> #syz dup: exact-subject-of-another-report
>
> If you want to undo deduplication, reply with:
> #syz undup
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^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [syzbot] [net?] BUG: Bad page state in skb_pp_cow_data
2024-12-09 17:15 ` Lorenzo Bianconi
@ 2024-12-11 13:41 ` Ilias Apalodimas
0 siblings, 0 replies; 3+ messages in thread
From: Ilias Apalodimas @ 2024-12-11 13:41 UTC (permalink / raw)
To: Lorenzo Bianconi
Cc: syzbot, davem, edumazet, hawk, horms, kuba, linux-kernel, netdev,
pabeni, syzkaller-bugs, toke
Hi Lorenzo,
On Mon, 9 Dec 2024 at 19:15, Lorenzo Bianconi <lorenzo@kernel.org> wrote:
>
> > Hello,
> >
> > syzbot found the following issue on:
> >
> > HEAD commit: 7503345ac5f5 Merge tag 'block-6.13-20241207' of git://git...
> > git tree: upstream
> > console+strace: https://syzkaller.appspot.com/x/log.txt?x=1784c820580000
> > kernel config: https://syzkaller.appspot.com/x/.config?x=335e39020523e2ed
> > dashboard link: https://syzkaller.appspot.com/bug?extid=ff145014d6b0ce64a173
> > compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
> > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=177a8b30580000
> > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17d80c0f980000
> >
> > Downloadable assets:
> > disk image: https://storage.googleapis.com/syzbot-assets/21582041bcc6/disk-7503345a.raw.xz
> > vmlinux: https://storage.googleapis.com/syzbot-assets/3752facf1019/vmlinux-7503345a.xz
> > kernel image: https://storage.googleapis.com/syzbot-assets/3b1c3c4d3bd9/bzImage-7503345a.xz
> >
> > The issue was bisected to:
> >
> > commit e6d5dbdd20aa6a86974af51deb9414cd2e7794cb
> > Author: Lorenzo Bianconi <lorenzo@kernel.org>
> > Date: Mon Feb 12 09:50:56 2024 +0000
> >
> > xdp: add multi-buff support for xdp running in generic mode
> >
> > bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=129acb30580000
> > final oops: https://syzkaller.appspot.com/x/report.txt?x=119acb30580000
> > console output: https://syzkaller.appspot.com/x/log.txt?x=169acb30580000
> >
> > IMPORTANT: if you fix the issue, please add the following tag to the commit:
> > Reported-by: syzbot+ff145014d6b0ce64a173@syzkaller.appspotmail.com
> > Fixes: e6d5dbdd20aa ("xdp: add multi-buff support for xdp running in generic mode")
> >
> > BUG: Bad page state in process syz-executor285 pfn:2d302
> > page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x2d302
> > flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
> > raw: 00fff00000000000 dead000000000040 ffff888022ab2000 0000000000000000
> > raw: 0000000000000000 0000000000000001 00000000ffffffff 0000000000000000
> > page dumped because: page_pool leak
> > page_owner tracks the page as allocated
> > page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5820, tgid 5820 (syz-executor285), ts 62999485029, free_ts 54592867285
> > set_page_owner include/linux/page_owner.h:32 [inline]
> > post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1556
> > prep_new_page mm/page_alloc.c:1564 [inline]
> > get_page_from_freelist+0x3651/0x37a0 mm/page_alloc.c:3474
> > __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4751
> > alloc_pages_bulk_noprof+0x70b/0xcc0 mm/page_alloc.c:4699
> > alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline]
> > __page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538
> > page_pool_alloc_netmem net/core/page_pool.c:590 [inline]
> > page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597
> > page_pool_alloc include/net/page_pool/helpers.h:129 [inline]
> > page_pool_dev_alloc include/net/page_pool/helpers.h:167 [inline]
> > skb_pp_cow_data+0xc43/0x1640 net/core/skbuff.c:983
> > netif_skb_check_for_xdp net/core/dev.c:5041 [inline]
> > netif_receive_generic_xdp net/core/dev.c:5080 [inline]
> > do_xdp_generic+0x505/0xd30 net/core/dev.c:5148
> > __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
> > __netif_receive_skb_one_core net/core/dev.c:5670 [inline]
> > __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
> > netif_receive_skb_internal net/core/dev.c:5871 [inline]
> > netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
> > tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
> > tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
> > tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
> > new_sync_write fs/read_write.c:586 [inline]
> > vfs_write+0xaeb/0xd30 fs/read_write.c:679
> > ksys_write+0x18f/0x2b0 fs/read_write.c:731
> > page last free pid 5807 tgid 5807 stack trace:
> > reset_page_owner include/linux/page_owner.h:25 [inline]
> > free_pages_prepare mm/page_alloc.c:1127 [inline]
> > free_unref_page+0xde3/0x1130 mm/page_alloc.c:2657
> > __folio_put+0x2c7/0x440 mm/swap.c:112
> > pipe_buf_release include/linux/pipe_fs_i.h:219 [inline]
> > pipe_update_tail fs/pipe.c:224 [inline]
> > pipe_read+0x6ed/0x13e0 fs/pipe.c:344
> > new_sync_read fs/read_write.c:484 [inline]
> > vfs_read+0x991/0xb70 fs/read_write.c:565
> > ksys_read+0x18f/0x2b0 fs/read_write.c:708
> > do_syscall_x64 arch/x86/entry/common.c:52 [inline]
> > do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
> > entry_SYSCALL_64_after_hwframe+0x77/0x7f
> > Modules linked in:
>
> According to the stack trace above this seems an issue in the page_pool
> codebase since we are trying to get a new page from the page allocator
> (__page_pool_alloc_pages_slow()) but the new page we receive is already
> marked with PP_SIGNATURE in pp_magic field (bad reason is set to "page_pool
> leak" in page_bad_reason()) so it already belongs to the pool.
>
> @Jesper, Ilias: any input on it?
We are indeed trying to allocate a page that wasn't freed using the
page pool APIs here. More specifically, the page got freed without
calling page_pool_return_page() somewhere, which is responsible for
resetting the magic signature.
That's all I can see from the trace now, I'll try having a closer look
Cheers
/Ilias
>
> Regards,
> Lorenzo
>
> > CPU: 0 UID: 0 PID: 5820 Comm: syz-executor285 Not tainted 6.13.0-rc1-syzkaller-00337-g7503345ac5f5 #0
> > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
> > Call Trace:
> > <TASK>
> > __dump_stack lib/dump_stack.c:94 [inline]
> > dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
> > bad_page+0x176/0x1d0 mm/page_alloc.c:501
> > free_page_is_bad mm/page_alloc.c:923 [inline]
> > free_pages_prepare mm/page_alloc.c:1119 [inline]
> > free_unref_page+0x1048/0x1130 mm/page_alloc.c:2657
> > bpf_xdp_shrink_data net/core/filter.c:4148 [inline]
> > bpf_xdp_frags_shrink_tail+0x3ee/0x7e0 net/core/filter.c:4169
> > ____bpf_xdp_adjust_tail net/core/filter.c:4194 [inline]
> > bpf_xdp_adjust_tail+0x1c3/0x200 net/core/filter.c:4187
> > bpf_prog_f476d5219b92964a+0x1e/0x20
> > __bpf_prog_run include/linux/filter.h:701 [inline]
> > bpf_prog_run_xdp include/net/xdp.h:514 [inline]
> > bpf_prog_run_generic_xdp+0x686/0x1510 net/core/dev.c:4973
> > netif_receive_generic_xdp net/core/dev.c:5086 [inline]
> > do_xdp_generic+0x757/0xd30 net/core/dev.c:5148
> > __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
> > __netif_receive_skb_one_core net/core/dev.c:5670 [inline]
> > __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
> > netif_receive_skb_internal net/core/dev.c:5871 [inline]
> > netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
> > tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
> > tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
> > tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
> > new_sync_write fs/read_write.c:586 [inline]
> > vfs_write+0xaeb/0xd30 fs/read_write.c:679
> > ksys_write+0x18f/0x2b0 fs/read_write.c:731
> > do_syscall_x64 arch/x86/entry/common.c:52 [inline]
> > do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
> > entry_SYSCALL_64_after_hwframe+0x77/0x7f
> > RIP: 0033:0x7f941abf7db0
> > Code: 40 00 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 80 3d f1 e2 07 00 00 74 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89
> > RSP: 002b:00007ffc09852f28 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
> > RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f941abf7db0
> > RDX: 0000000000011dc0 RSI: 00000000200004c0 RDI: 00000000000000c8
> > RBP: 0000000000000000 R08: 00007ffc09853058 R09: 00007ffc09853058
> > R10: 00007ffc09853058 R11: 0000000000000202 R12: 00007f941ac460de
> > R13: 0000000000000000 R14: 00007ffc09852f60 R15: 00007ffc09852f50
> > </TASK>
> > BUG: Bad page state in process syz-executor285 pfn:2d301
> > page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x8 pfn:0x2d301
> > flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
> > raw: 00fff00000000000 dead000000000040 ffff888022ab2000 0000000000000000
> > raw: 0000000000000008 0000000000000001 00000000ffffffff 0000000000000000
> > page dumped because: page_pool leak
> > page_owner tracks the page as allocated
> > page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5820, tgid 5820 (syz-executor285), ts 62999478821, free_ts 55944947211
> > set_page_owner include/linux/page_owner.h:32 [inline]
> > post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1556
> > prep_new_page mm/page_alloc.c:1564 [inline]
> > get_page_from_freelist+0x3651/0x37a0 mm/page_alloc.c:3474
> > __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4751
> > alloc_pages_bulk_noprof+0x70b/0xcc0 mm/page_alloc.c:4699
> > alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline]
> > __page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538
> > page_pool_alloc_netmem net/core/page_pool.c:590 [inline]
> > page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597
> > page_pool_alloc include/net/page_pool/helpers.h:129 [inline]
> > page_pool_dev_alloc include/net/page_pool/helpers.h:167 [inline]
> > skb_pp_cow_data+0xc43/0x1640 net/core/skbuff.c:983
> > netif_skb_check_for_xdp net/core/dev.c:5041 [inline]
> > netif_receive_generic_xdp net/core/dev.c:5080 [inline]
> > do_xdp_generic+0x505/0xd30 net/core/dev.c:5148
> > __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
> > __netif_receive_skb_one_core net/core/dev.c:5670 [inline]
> > __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
> > netif_receive_skb_internal net/core/dev.c:5871 [inline]
> > netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
> > tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
> > tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
> > tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
> > new_sync_write fs/read_write.c:586 [inline]
> > vfs_write+0xaeb/0xd30 fs/read_write.c:679
> > ksys_write+0x18f/0x2b0 fs/read_write.c:731
> > page last free pid 5810 tgid 5810 stack trace:
> > reset_page_owner include/linux/page_owner.h:25 [inline]
> > free_pages_prepare mm/page_alloc.c:1127 [inline]
> > free_unref_page+0xde3/0x1130 mm/page_alloc.c:2657
> > __folio_put+0x2c7/0x440 mm/swap.c:112
> > pipe_buf_release include/linux/pipe_fs_i.h:219 [inline]
> > pipe_update_tail fs/pipe.c:224 [inline]
> > pipe_read+0x6ed/0x13e0 fs/pipe.c:344
> > new_sync_read fs/read_write.c:484 [inline]
> > vfs_read+0x991/0xb70 fs/read_write.c:565
> > ksys_read+0x18f/0x2b0 fs/read_write.c:708
> > do_syscall_x64 arch/x86/entry/common.c:52 [inline]
> > do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
> > entry_SYSCALL_64_after_hwframe+0x77/0x7f
> > Modules linked in:
> > CPU: 0 UID: 0 PID: 5820 Comm: syz-executor285 Tainted: G B 6.13.0-rc1-syzkaller-00337-g7503345ac5f5 #0
> > Tainted: [B]=BAD_PAGE
> > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
> > Call Trace:
> > <TASK>
> > __dump_stack lib/dump_stack.c:94 [inline]
> > dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
> > bad_page+0x176/0x1d0 mm/page_alloc.c:501
> > free_page_is_bad mm/page_alloc.c:923 [inline]
> > free_pages_prepare mm/page_alloc.c:1119 [inline]
> > free_unref_page+0x1048/0x1130 mm/page_alloc.c:2657
> > bpf_xdp_shrink_data net/core/filter.c:4148 [inline]
> > bpf_xdp_frags_shrink_tail+0x3ee/0x7e0 net/core/filter.c:4169
> > ____bpf_xdp_adjust_tail net/core/filter.c:4194 [inline]
> > bpf_xdp_adjust_tail+0x1c3/0x200 net/core/filter.c:4187
> > bpf_prog_f476d5219b92964a+0x1e/0x20
> > __bpf_prog_run include/linux/filter.h:701 [inline]
> > bpf_prog_run_xdp include/net/xdp.h:514 [inline]
> > bpf_prog_run_generic_xdp+0x686/0x1510 net/core/dev.c:4973
> > netif_receive_generic_xdp net/core/dev.c:5086 [inline]
> > do_xdp_generic+0x757/0xd30 net/core/dev.c:5148
> > __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
> > __netif_receive_skb_one_core net/core/dev.c:5670 [inline]
> > __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
> > netif_receive_skb_internal net/core/dev.c:5871 [inline]
> > netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
> > tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
> > tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
> > tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
> > new_sync_write fs/read_write.c:586 [inline]
> > vfs_write+0xaeb/0xd30 fs/read_write.c:679
> > ksys_write+0x18f/0x2b0 fs/read_write.c:731
> > do_syscall_x64 arch/x86/entry/common.c:52 [inline]
> > do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
> > entry_SYSCALL_64_after_hwframe+0x77/0x7f
> > RIP: 0033:0x7f941abf7db0
> > Code: 40 00 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 80 3d f1 e2 07 00 00 74 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89
> > RSP: 002b:00007ffc09852f28 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
> > RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f941abf7db0
> > RDX: 0000000000011dc0 RSI: 00000000200004c0 RDI: 00000000000000c8
> > RBP: 0000000000000000 R08: 00007ffc09853058 R09: 00007ffc09853058
> > R10: 00007ffc09853058 R11: 0000000000000202 R12: 00007f941ac460de
> > R13: 0000000000000000 R14: 00007ffc09852f60 R15: 00007ffc09852f50
> > </TASK>
> > BUG: Bad page state in process syz-executor285 pfn:2d300
> > page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88802d304000 pfn:0x2d300
> > flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
> > raw: 00fff00000000000 dead000000000040 ffff888022ab2000 0000000000000000
> > raw: ffff88802d304000 0000000000000001 00000000ffffffff 0000000000000000
> > page dumped because: page_pool leak
> > page_owner tracks the page as allocated
> > page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5820, tgid 5820 (syz-executor285), ts 62999472559, free_ts 55944400344
> > set_page_owner include/linux/page_owner.h:32 [inline]
> > post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1556
> > prep_new_page mm/page_alloc.c:1564 [inline]
> > get_page_from_freelist+0x3651/0x37a0 mm/page_alloc.c:3474
> > __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4751
> > alloc_pages_bulk_noprof+0x70b/0xcc0 mm/page_alloc.c:4699
> > alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline]
> > __page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538
> > page_pool_alloc_netmem net/core/page_pool.c:590 [inline]
> > page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597
> > page_pool_alloc include/net/page_pool/helpers.h:129 [inline]
> > page_pool_dev_alloc include/net/page_pool/helpers.h:167 [inline]
> > skb_pp_cow_data+0xc43/0x1640 net/core/skbuff.c:983
> > netif_skb_check_for_xdp net/core/dev.c:5041 [inline]
> > netif_receive_generic_xdp net/core/dev.c:5080 [inline]
> > do_xdp_generic+0x505/0xd30 net/core/dev.c:5148
> > __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
> > __netif_receive_skb_one_core net/core/dev.c:5670 [inline]
> > __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
> > netif_receive_skb_internal net/core/dev.c:5871 [inline]
> > netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
> > tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
> > tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
> > tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
> > new_sync_write fs/read_write.c:586 [inline]
> > vfs_write+0xaeb/0xd30 fs/read_write.c:679
> > ksys_write+0x18f/0x2b0 fs/read_write.c:731
> > page last free pid 5810 tgid 5810 stack trace:
> > reset_page_owner include/linux/page_owner.h:25 [inline]
> > free_pages_prepare mm/page_alloc.c:1127 [inline]
> > free_unref_page+0xde3/0x1130 mm/page_alloc.c:2657
> > __folio_put+0x2c7/0x440 mm/swap.c:112
> > pipe_buf_release include/linux/pipe_fs_i.h:219 [inline]
> > pipe_update_tail fs/pipe.c:224 [inline]
> > pipe_read+0x6ed/0x13e0 fs/pipe.c:344
> > new_sync_read fs/read_write.c:484 [inline]
> > vfs_read+0x991/0xb70 fs/read_write.c:565
> > ksys_read+0x18f/0x2b0 fs/read_write.c:708
> > do_syscall_x64 arch/x86/entry/common.c:52 [inline]
> > do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
> > entry_SYSCALL_64_after_hwframe+0x77/0x7f
> > Modules linked in:
> > CPU: 0 UID: 0 PID: 5820 Comm: syz-executor285 Tainted: G B 6.13.0-rc1-syzkaller-00337-g7503345ac5f5 #0
> > Tainted: [B]=BAD_PAGE
> > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
> > Call Trace:
> > <TASK>
> > __dump_stack lib/dump_stack.c:94 [inline]
> > dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
> > bad_page+0x176/0x1d0 mm/page_alloc.c:501
> > free_page_is_bad mm/page_alloc.c:923 [inline]
> > free_pages_prepare mm/page_alloc.c:1119 [inline]
> > free_unref_page+0x1048/0x1130 mm/page_alloc.c:2657
> > bpf_xdp_shrink_data net/core/filter.c:4148 [inline]
> > bpf_xdp_frags_shrink_tail+0x3ee/0x7e0 net/core/filter.c:4169
> > ____bpf_xdp_adjust_tail net/core/filter.c:4194 [inline]
> > bpf_xdp_adjust_tail+0x1c3/0x200 net/core/filter.c:4187
> > bpf_prog_f476d5219b92964a+0x1e/0x20
> > __bpf_prog_run include/linux/filter.h:701 [inline]
> > bpf_prog_run_xdp include/net/xdp.h:514 [inline]
> > bpf_prog_run_generic_xdp+0x686/0x1510 net/core/dev.c:4973
> > netif_receive_generic_xdp net/core/dev.c:5086 [inline]
> > do_xdp_generic+0x757/0xd30 net/core/dev.c:5148
> > __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
> > __netif_receive_skb_one_core net/core/dev.c:5670 [inline]
> > __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
> > netif_receive_skb_internal net/core/dev.c:5871 [inline]
> > netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
> > tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
> > tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
> > tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
> > new_sync_write fs/read_write.c:586 [inline]
> > vfs_write+0xaeb/0xd30 fs/read_write.c:679
> > ksys_write+0x18f/0x2b0 fs/read_write.c:731
> > do_syscall_x64 arch/x86/entry/common.c:52 [inline]
> > do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
> > entry_SYSCALL_64_after_hwframe+0x77/0x7f
> > RIP: 0033:0x7f941abf7db0
> > Code: 40 00 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 80 3d f1 e2 07 00 00 74 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89
> > RSP: 002b:00007ffc09852f28 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
> > RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f941abf7db0
> > RDX: 0000000000011dc0 RSI: 00000000200004c0 RDI: 00000000000000c8
> > RBP: 0000000000000000 R08: 00007ffc09853058 R09: 00007ffc09853058
> > R10: 00007ffc09853058 R11: 0000000000000202 R12: 00007f941ac460de
> > R13: 0000000000000000 R14: 00007ffc09852f60 R15: 00007ffc09852f50
> > </TASK>
> > BUG: Bad page state in process syz-executor285 pfn:72d3b
> > page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x72d3b
> > flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
> > raw: 00fff00000000000 dead000000000040 ffff888022ab2000 0000000000000000
> > raw: 0000000000000000 0000000000000001 00000000ffffffff 0000000000000000
> > page dumped because: page_pool leak
> > page_owner tracks the page as allocated
> > page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5820, tgid 5820 (syz-executor285), ts 62999466297, free_ts 54575113729
> > set_page_owner include/linux/page_owner.h:32 [inline]
> > post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1556
> > prep_new_page mm/page_alloc.c:1564 [inline]
> > get_page_from_freelist+0x3651/0x37a0 mm/page_alloc.c:3474
> > __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4751
> > alloc_pages_bulk_noprof+0x70b/0xcc0 mm/page_alloc.c:4699
> > alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline]
> > __page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538
> > page_pool_alloc_netmem net/core/page_pool.c:590 [inline]
> > page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597
> > page_pool_alloc include/net/page_pool/helpers.h:129 [inline]
> > page_pool_dev_alloc include/net/page_pool/helpers.h:167 [inline]
> > skb_pp_cow_data+0xc43/0x1640 net/core/skbuff.c:983
> > netif_skb_check_for_xdp net/core/dev.c:5041 [inline]
> > netif_receive_generic_xdp net/core/dev.c:5080 [inline]
> > do_xdp_generic+0x505/0xd30 net/core/dev.c:5148
> > __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
> > __netif_receive_skb_one_core net/core/dev.c:5670 [inline]
> > __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
> > netif_receive_skb_internal net/core/dev.c:5871 [inline]
> > netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
> > tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
> > tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
> > tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
> > new_sync_write fs/read_write.c:586 [inline]
> > vfs_write+0xaeb/0xd30 fs/read_write.c:679
> > ksys_write+0x18f/0x2b0 fs/read_write.c:731
> > page last free pid 5807 tgid 5807 stack trace:
> > reset_page_owner include/linux/page_owner.h:25 [inline]
> > free_pages_prepare mm/page_alloc.c:1127 [inline]
> > free_unref_page+0xde3/0x1130 mm/page_alloc.c:2657
> > __folio_put+0x2c7/0x440 mm/swap.c:112
> > pipe_buf_release include/linux/pipe_fs_i.h:219 [inline]
> > pipe_update_tail fs/pipe.c:224 [inline]
> > pipe_read+0x6ed/0x13e0 fs/pipe.c:344
> > new_sync_read fs/read_write.c:484 [inline]
> > vfs_read+0x991/0xb70 fs/read_write.c:565
> > ksys_read+0x18f/0x2b0 fs/read_write.c:708
> > do_syscall_x64 arch/x86/entry/common.c:52 [inline]
> > do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
> > entry_SYSCALL_64_after_hwframe+0x77/0x7f
> > Modules linked in:
> > CPU: 0 UID: 0 PID: 5820 Comm: syz-executor285 Tainted: G B 6.13.0-rc1-syzkaller-00337-g7503345ac5f5 #0
> > Tainted: [B]=BAD_PAGE
> > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
> > Call Trace:
> > <TASK>
> > __dump_stack lib/dump_stack.c:94 [inline]
> > dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
> > bad_page+0x176/0x1d0 mm/page_alloc.c:501
> > free_page_is_bad mm/page_alloc.c:923 [inline]
> > free_pages_prepare mm/page_alloc.c:1119 [inline]
> > free_unref_page+0x1048/0x1130 mm/page_alloc.c:2657
> > bpf_xdp_shrink_data net/core/filter.c:4148 [inline]
> > bpf_xdp_frags_shrink_tail+0x3ee/0x7e0 net/core/filter.c:4169
> > ____bpf_xdp_adjust_tail net/core/filter.c:4194 [inline]
> > bpf_xdp_adjust_tail+0x1c3/0x200 net/core/filter.c:4187
> > bpf_prog_f476d5219b92964a+0x1e/0x20
> > __bpf_prog_run include/linux/filter.h:701 [inline]
> > bpf_prog_run_xdp include/net/xdp.h:514 [inline]
> > bpf_prog_run_generic_xdp+0x686/0x1510 net/core/dev.c:4973
> > netif_receive_generic_xdp net/core/dev.c:5086 [inline]
> > do_xdp_generic+0x757/0xd30 net/core/dev.c:5148
> > __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
> > __netif_receive_skb_one_core net/core/dev.c:5670 [inline]
> > __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
> > netif_receive_skb_internal net/core/dev.c:5871 [inline]
> > netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
> > tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
> > tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
> > tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
> > new_sync_write fs/read_write.c:586 [inline]
> > vfs_write+0xaeb/0xd30 fs/read_write.c:679
> > ksys_write+0x18f/0x2b0 fs/read_write.c:731
> > do_syscall_x64 arch/x86/entry/common.c:52 [inline]
> > do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
> > entry_SYSCALL_64_after_hwframe+0x77/0x7f
> > RIP: 0033:0x7f941abf7db0
> > Code: 40 00 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 80 3d f1 e2 07 00 00 74 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89
> > RSP: 002b:00007ffc09852f28 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
> > RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f941abf7db0
> > RDX: 0000000000011dc0 RSI: 00000000200004c0 RDI: 00000000000000c8
> > RBP: 0000000000000000 R08: 00007ffc09853058 R09: 00007ffc09853058
> > R10: 00007ffc09853058 R11: 0000000000000202 R12: 00007f941ac460de
> > R13: 0000000000000000 R14: 00007ffc09852f60 R15: 00007ffc09852f50
> > </TASK>
> > BUG: Bad page state in process syz-executor285 pfn:72d3a
> > page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x72d3a
> > flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
> > raw: 00fff00000000000 dead000000000040 ffff888022ab2000 0000000000000000
> > raw: 0000000000000000 0000000000000001 00000000ffffffff 0000000000000000
> > page dumped because: page_pool leak
> > page_owner tracks the page as allocated
> > page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5820, tgid 5820 (syz-executor285), ts 62999460106, free_ts 54575122306
> > set_page_owner include/linux/page_owner.h:32 [inline]
> > post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1556
> > prep_new_page mm/page_alloc.c:1564 [inline]
> > get_page_from_freelist+0x3651/0x37a0 mm/page_alloc.c:3474
> > __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4751
> > alloc_pages_bulk_noprof+0x70b/0xcc0 mm/page_alloc.c:4699
> > alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline]
> > __page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538
> > page_pool_alloc_netmem net/core/page_pool.c:590 [inline]
> > page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597
> > page_pool_alloc include/net/page_pool/helpers.h:129 [inline]
> > page_pool_dev_alloc include/net/page_pool/helpers.h:167 [inline]
> > skb_pp_cow_data+0xc43/0x1640 net/core/skbuff.c:983
> > netif_skb_check_for_xdp net/core/dev.c:5041 [inline]
> > netif_receive_generic_xdp net/core/dev.c:5080 [inline]
> > do_xdp_generic+0x505/0xd30 net/core/dev.c:5148
> > __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
> > __netif_receive_skb_one_core net/core/dev.c:5670 [inline]
> > __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
> > netif_receive_skb_internal net/core/dev.c:5871 [inline]
> > netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
> > tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
> > tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
> > tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
> > new_sync_write fs/read_write.c:586 [inline]
> > vfs_write+0xaeb/0xd30 fs/read_write.c:679
> > ksys_write+0x18f/0x2b0 fs/read_write.c:731
> > page last free pid 5807 tgid 5807 stack trace:
> > reset_page_owner include/linux/page_owner.h:25 [inline]
> > free_pages_prepare mm/page_alloc.c:1127 [inline]
> > free_unref_page+0xde3/0x1130 mm/page_alloc.c:2657
> > __folio_put+0x2c7/0x440 mm/swap.c:112
> > pipe_buf_release include/linux/pipe_fs_i.h:219 [inline]
> > pipe_update_tail fs/pipe.c:224 [inline]
> > pipe_read+0x6ed/0x13e0 fs/pipe.c:344
> > new_sync_read fs/read_write.c:484 [inline]
> > vfs_read+0x991/0xb70 fs/read_write.c:565
> > ksys_read+0x18f/0x2b0 fs/read_write.c:708
> > do_syscall_x64 arch/x86/entry/common.c:52 [inline]
> > do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
> > entry_SYSCALL_64_after_hwframe+0x77/0x7f
> > Modules linked in:
> > CPU: 0 UID: 0 PID: 5820 Comm: syz-executor285 Tainted: G B 6.13.0-rc1-syzkaller-00337-g7503345ac5f5 #0
> > Tainted: [B]=BAD_PAGE
> > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
> > Call Trace:
> > <TASK>
> > __dump_stack lib/dump_stack.c:94 [inline]
> > dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
> > bad_page+0x176/0x1d0 mm/page_alloc.c:501
> > free_page_is_bad mm/page_alloc.c:923 [inline]
> > free_pages_prepare mm/page_alloc.c:1119 [inline]
> > free_unref_page+0x1048/0x1130 mm/page_alloc.c:2657
> > bpf_xdp_shrink_data net/core/filter.c:4148 [inline]
> > bpf_xdp_frags_shrink_tail+0x3ee/0x7e0 net/core/filter.c:4169
> > ____bpf_xdp_adjust_tail net/core/filter.c:4194 [inline]
> > bpf_xdp_adjust_tail+0x1c3/0x200 net/core/filter.c:4187
> > bpf_prog_f476d5219b92964a+0x1e/0x20
> > __bpf_prog_run include/linux/filter.h:701 [inline]
> > bpf_prog_run_xdp include/net/xdp.h:514 [inline]
> > bpf_prog_run_generic_xdp+0x686/0x1510 net/core/dev.c:4973
> > netif_receive_generic_xdp net/core/dev.c:5086 [inline]
> > do_xdp_generic+0x757/0xd30 net/core/dev.c:5148
> > __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
> > __netif_receive_skb_one_core net/core/dev.c:5670 [inline]
> > __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
> > netif_receive_skb_internal net/core/dev.c:5871 [inline]
> > netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
> > tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
> > tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
> > tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
> > new_sync_write fs/read_write.c:586 [inline]
> > vfs_write+0xaeb/0xd30 fs/read_write.c:679
> > ksys_write+0x18f/0x2b0 fs/read_write.c:731
> > do_syscall_x64 arch/x86/entry/common.c:52 [inline]
> > do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
> > entry_SYSCALL_64_after_hwframe+0x77/0x7f
> > RIP: 0033:0x7f941abf7db0
> > Code: 40 00 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 80 3d f1 e2 07 00 00 74 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89
> > RSP: 002b:00007ffc09852f28 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
> > RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f941abf7db0
> > RDX: 0000000000011dc0 RSI: 00000000200004c0 RDI: 00000000000000c8
> > RBP: 0000000000000000 R08: 00007ffc09853058 R09: 00007ffc09853058
> > R10: 00007ffc09853058 R11: 0000000000000202 R12: 00007f941ac460de
> > R13: 0000000000000000 R14: 00007ffc09852f60 R15: 00007ffc09852f50
> > </TASK>
> > BUG: Bad page state in process syz-executor285 pfn:72d39
> > page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x72d39
> > flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
> > raw: 00fff00000000000 dead000000000040 ffff888022ab2000 0000000000000000
> > raw: 0000000000000000 0000000000000001 00000000ffffffff 0000000000000000
> > page dumped because: page_pool leak
> > page_owner tracks the page as allocated
> > page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5820, tgid 5820 (syz-executor285), ts 62999453972, free_ts 54575963863
> > set_page_owner include/linux/page_owner.h:32 [inline]
> > post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1556
> > prep_new_page mm/page_alloc.c:1564 [inline]
> > get_page_from_freelist+0x3651/0x37a0 mm/page_alloc.c:3474
> > __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4751
> > alloc_pages_bulk_noprof+0x70b/0xcc0 mm/page_alloc.c:4699
> > alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline]
> > __page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538
> > page_pool_alloc_netmem net/core/page_pool.c:590 [inline]
> > page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597
> > page_pool_alloc include/net/page_pool/helpers.h:129 [inline]
> > page_pool_dev_alloc include/net/page_pool/helpers.h:167 [inline]
> > skb_pp_cow_data+0xc43/0x1640 net/core/skbuff.c:983
> > netif_skb_check_for_xdp net/core/dev.c:5041 [inline]
> > netif_receive_generic_xdp net/core/dev.c:5080 [inline]
> > do_xdp_generic+0x505/0xd30 net/core/dev.c:5148
> > __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
> > __netif_receive_skb_one_core net/core/dev.c:5670 [inline]
> > __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
> > netif_receive_skb_internal net/core/dev.c:5871 [inline]
> > netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
> > tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
> > tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
> > tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
> > new_sync_write fs/read_write.c:586 [inline]
> > vfs_write+0xaeb/0xd30 fs/read_write.c:679
> > ksys_write+0x18f/0x2b0 fs/read_write.c:731
> > page last free pid 5807 tgid 5807 stack trace:
> > reset_page_owner include/linux/page_owner.h:25 [inline]
> > free_pages_prepare mm/page_alloc.c:1127 [inline]
> > free_unref_page+0xde3/0x1130 mm/page_alloc.c:2657
> > __folio_put+0x2c7/0x440 mm/swap.c:112
> > pipe_buf_release include/linux/pipe_fs_i.h:219 [inline]
> > pipe_update_tail fs/pipe.c:224 [inline]
> > pipe_read+0x6ed/0x13e0 fs/pipe.c:344
> > new_sync_read fs/read_write.c:484 [inline]
> > vfs_read+0x991/0xb70 fs/read_write.c:565
> > ksys_read+0x18f/0x2b0 fs/read_write.c:708
> > do_syscall_x64 arch/x86/entry/common.c:52 [inline]
> > do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
> > entry_SYSCALL_64_after_hwframe+0x77/0x7f
> > Modules linked in:
> > CPU: 0 UID: 0 PID: 5820 Comm: syz-executor285 Tainted: G B 6.13.0-rc1-syzkaller-00337-g7503345ac5f5 #0
> > Tainted: [B]=BAD_PAGE
> > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
> > Call Trace:
> > <TASK>
> > __dump_stack lib/dump_stack.c:94 [inline]
> > dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
> > bad_page+0x176/0x1d0 mm/page_alloc.c:501
> > free_page_is_bad mm/page_alloc.c:923 [inline]
> > free_pages_prepare mm/page_alloc.c:1119 [inline]
> > free_unref_page+0x1048/0x1130 mm/page_alloc.c:2657
> > bpf_xdp_shrink_data net/core/filter.c:4148 [inline]
> > bpf_xdp_frags_shrink_tail+0x3ee/0x7e0 net/core/filter.c:4169
> > ____bpf_xdp_adjust_tail net/core/filter.c:4194 [inline]
> > bpf_xdp_adjust_tail+0x1c3/0x200 net/core/filter.c:4187
> > bpf_prog_f476d5219b92964a+0x1e/0x20
> > __bpf_prog_run include/linux/filter.h:701 [inline]
> > bpf_prog_run_xdp include/net/xdp.h:514 [inline]
> > bpf_prog_run_generic_xdp+0x686/0x1510 net/core/dev.c:4973
> > netif_receive_generic_xdp net/core/dev.c:5086 [inline]
> > do_xdp_generic+0x757/0xd30 net/core/dev.c:5148
> > __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
> > __netif_receive_skb_one_core net/core/dev.c:5670 [inline]
> > __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
> > netif_receive_skb_internal net/core/dev.c:5871 [inline]
> > netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
> > tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
> > tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
> > tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
> > new_sync_write fs/read_write.c:586 [inline]
> > vfs_write+0xaeb/0xd30 fs/read_write.c:679
> > ksys_write+0x18f/0x2b0 fs/read_write.c:731
> > do_syscall_x64 arch/x86/entry/common.c:52 [inline]
> > do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
> > entry_SYSCALL_64_after_hwframe+0x77/0x7f
> > RIP: 0033:0x7f941abf7db0
> > Code: 40 00 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 80 3d f1 e2 07 00 00 74 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89
> > RSP: 002b:00007ffc09852f28 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
> > RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f941abf7db0
> > RDX: 0000000000011dc0 RSI: 00000000200004c0 RDI: 00000000000000c8
> > RBP: 0000000000000000 R08: 00007ffc09853058 R09: 00007ffc09853058
> > R10: 00007ffc09853058 R11: 0000000000000202 R12: 00007f941ac460de
> > R13: 0000000000000000 R14: 00007ffc09852f60 R15: 00007ffc09852f50
> > </TASK>
> > BUG: Bad page state in process syz-executor285 pfn:72d38
> > page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x72d38
> > flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
> > raw: 00fff00000000000 dead000000000040 ffff888022ab2000 0000000000000000
> > raw: 0000000000000000 0000000000000001 00000000ffffffff 0000000000000000
> > page dumped because: page_pool leak
> > page_owner tracks the page as allocated
> > page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5820, tgid 5820 (syz-executor285), ts 62999447572, free_ts 54575218247
> > set_page_owner include/linux/page_owner.h:32 [inline]
> > post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1556
> > prep_new_page mm/page_alloc.c:1564 [inline]
> > get_page_from_freelist+0x3651/0x37a0 mm/page_alloc.c:3474
> > __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4751
> > alloc_pages_bulk_noprof+0x70b/0xcc0 mm/page_alloc.c:4699
> > alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline]
> > __page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538
> > page_pool_alloc_netmem net/core/page_pool.c:590 [inline]
> > page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597
> > page_pool_alloc include/net/page_pool/helpers.h:129 [inline]
> > page_pool_dev_alloc include/net/page_pool/helpers.h:167 [inline]
> > skb_pp_cow_data+0xc43/0x1640 net/core/skbuff.c:983
> > netif_skb_check_for_xdp net/core/dev.c:5041 [inline]
> > netif_receive_generic_xdp net/core/dev.c:5080 [inline]
> > do_xdp_generic+0x505/0xd30 net/core/dev.c:5148
> > __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
> > __netif_receive_skb_one_core net/core/dev.c:5670 [inline]
> > __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
> > netif_receive_skb_internal net/core/dev.c:5871 [inline]
> > netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
> > tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
> > tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
> > tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
> > new_sync_write fs/read_write.c:586 [inline]
> > vfs_write+0xaeb/0xd30 fs/read_write.c:679
> > ksys_write+0x18f/0x2b0 fs/read_write.c:731
> > page last free pid 5807 tgid 5807 stack trace:
> > reset_page_owner include/linux/page_owner.h:25 [inline]
> > free_pages_prepare mm/page_alloc.c:1127 [inline]
> > free_unref_page+0xde3/0x1130 mm/page_alloc.c:2657
> > __folio_put+0x2c7/0x440 mm/swap.c:112
> > pipe_buf_release include/linux/pipe_fs_i.h:219 [inline]
> > pipe_update_tail fs/pipe.c:224 [inline]
> > pipe_read+0x6ed/0x13e0 fs/pipe.c:344
> > new_sync_read fs/read_write.c:484 [inline]
> > vfs_read+0x991/0xb70 fs/read_write.c:565
> > ksys_read+0x18f/0x2b0 fs/read_write.c:708
> > do_syscall_x64 arch/x86/entry/common.c:52 [inline]
> > do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
> > entry_SYSCALL_64_after_hwframe+0x77/0x7f
> > Modules linked in:
> > CPU: 0 UID: 0 PID: 5820 Comm: syz-executor285 Tainted: G B 6.13.0-rc1-syzkaller-00337-g7503345ac5f5 #0
> > Tainted: [B]=BAD_PAGE
> > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
> > Call Trace:
> > <TASK>
> > __dump_stack lib/dump_stack.c:94 [inline]
> > dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
> > bad_page+0x176/0x1d0 mm/page_alloc.c:501
> > free_page_is_bad mm/page_alloc.c:923 [inline]
> > free_pages_prepare mm/page_alloc.c:1119 [inline]
> > free_unref_page+0x1048/0x1130 mm/page_alloc.c:2657
> > bpf_xdp_shrink_data net/core/filter.c:4148 [inline]
> > bpf_xdp_frags_shrink_tail+0x3ee/0x7e0 net/core/filter.c:4169
> > ____bpf_xdp_adjust_tail net/core/filter.c:4194 [inline]
> > bpf_xdp_adjust_tail+0x1c3/0x200 net/core/filter.c:4187
> > bpf_prog_f476d5219b92964a+0x1e/0x20
> > __bpf_prog_run include/linux/filter.h:701 [inline]
> > bpf_prog_run_xdp include/net/xdp.h:514 [inline]
> > bpf_prog_run_generic_xdp+0x686/0x1510 net/core/dev.c:4973
> > netif_receive_generic_xdp net/core/dev.c:5086 [inline]
> > do_xdp_generic+0x757/0xd30 net/core/dev.c:5148
> > __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
> > __netif_receive_skb_one_core net/core/dev.c:5670 [inline]
> > __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
> > netif_receive_skb_internal net/core/dev.c:5871 [inline]
> > netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
> > tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
> > tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
> > tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
> > new_sync_write fs/read_write.c:586 [inline]
> > vfs_write+0xaeb/0xd30 fs/read_write.c:679
> > ksys_write+0x18f/0x2b0 fs/read_write.c:731
> > do_syscall_x64 arch/x86/entry/common.c:52 [inline]
> > do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
> > entry_SYSCALL_64_after_hwframe+0x77/0x7f
> > RIP: 0033:0x7f941abf7db0
> > Code: 40 00 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 80 3d f1 e2 07 00 00 74 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89
> > RSP: 002b:00007ffc09852f28 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
> > RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f941abf7db0
> > RDX: 0000000000011dc0 RSI: 00000000200004c0 RDI: 00000000000000c8
> > RBP: 0000000000000000 R08: 00007ffc09853058 R09: 00007ffc09853058
> > R10: 00007ffc09853058 R11: 0000000000000202 R12: 00007f941ac460de
> > R13: 0000000000000000 R14: 00007ffc09852f60 R15: 00007ffc09852f50
> > </TASK>
> > BUG: Bad page state in process syz-executor285 pfn:76907
> > page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x76907
> > flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
> > raw: 00fff00000000000 dead000000000040 ffff888022ab2000 0000000000000000
> > raw: 0000000000000000 0000000000000001 00000000ffffffff 0000000000000000
> > page dumped because: page_pool leak
> > page_owner tracks the page as allocated
> > page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5820, tgid 5820 (syz-executor285), ts 62999441200, free_ts 54582364655
> > set_page_owner include/linux/page_owner.h:32 [inline]
> > post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1556
> > prep_new_page mm/page_alloc.c:1564 [inline]
> > get_page_from_freelist+0x3651/0x37a0 mm/page_alloc.c:3474
> > __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4751
> > alloc_pages_bulk_noprof+0x70b/0xcc0 mm/page_alloc.c:4699
> > alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline]
> > __page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538
> > page_pool_alloc_netmem net/core/page_pool.c:590 [inline]
> > page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597
> > page_pool_alloc include/net/page_pool/helpers.h:129 [inline]
> > page_pool_dev_alloc include/net/page_pool/helpers.h:167 [inline]
> > skb_pp_cow_data+0xc43/0x1640 net/core/skbuff.c:983
> > netif_skb_check_for_xdp net/core/dev.c:5041 [inline]
> > netif_receive_generic_xdp net/core/dev.c:5080 [inline]
> > do_xdp_generic+0x505/0xd30 net/core/dev.c:5148
> > __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
> > __netif_receive_skb_one_core net/core/dev.c:5670 [inline]
> > __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
> > netif_receive_skb_internal net/core/dev.c:5871 [inline]
> > netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
> > tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
> > tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
> > tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
> > new_sync_write fs/read_write.c:586 [inline]
> > vfs_write+0xaeb/0xd30 fs/read_write.c:679
> > ksys_write+0x18f/0x2b0 fs/read_write.c:731
> > page last free pid 5807 tgid 5807 stack trace:
> > reset_page_owner include/linux/page_owner.h:25 [inline]
> > free_pages_prepare mm/page_alloc.c:1127 [inline]
> > free_unref_page+0xde3/0x1130 mm/page_alloc.c:2657
> > __folio_put+0x2c7/0x440 mm/swap.c:112
> > pipe_buf_release include/linux/pipe_fs_i.h:219 [inline]
> > pipe_update_tail fs/pipe.c:224 [inline]
> > pipe_read+0x6ed/0x13e0 fs/pipe.c:344
> > new_sync_read fs/read_write.c:484 [inline]
> > vfs_read+0x991/0xb70 fs/read_write.c:565
> > ksys_read+0x18f/0x2b0 fs/read_write.c:708
> > do_syscall_x64 arch/x86/entry/common.c:52 [inline]
> > do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
> > entry_SYSCALL_64_after_hwframe+0x77/0x7f
> > Modules linked in:
> > CPU: 0 UID: 0 PID: 5820 Comm: syz-executor285 Tainted: G B 6.13.0-rc1-syzkaller-00337-g7503345ac5f5 #0
> > Tainted: [B]=BAD_PAGE
> > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
> > Call Trace:
> > <TASK>
> > __dump_stack lib/dump_stack.c:94 [inline]
> > dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
> > bad_page+0x176/0x1d0 mm/page_alloc.c:501
> > free_page_is_bad mm/page_alloc.c:923 [inline]
> > free_pages_prepare mm/page_alloc.c:1119 [inline]
> > free_unref_page+0x1048/0x1130 mm/page_alloc.c:2657
> > bpf_xdp_shrink_data net/core/filter.c:4148 [inline]
> > bpf_xdp_frags_shrink_tail+0x3ee/0x7e0 net/core/filter.c:4169
> > ____bpf_xdp_adjust_tail net/core/filter.c:4194 [inline]
> > bpf_xdp_adjust_tail+0x1c3/0x200 net/core/filter.c:4187
> > bpf_prog_f476d5219b92964a+0x1e/0x20
> > __bpf_prog_run include/linux/filter.h:701 [inline]
> > bpf_prog_run_xdp include/net/xdp.h:514 [inline]
> > bpf_prog_run_generic_xdp+0x686/0x1510 net/core/dev.c:4973
> > netif_receive_generic_xdp net/core/dev.c:5086 [inline]
> > do_xdp_generic+0x757/0xd30 net/core/dev.c:5148
> > __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
> > __netif_receive_skb_one_core net/core/dev.c:5670 [inline]
> > __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
> > netif_receive_skb_internal net/core/dev.c:5871 [inline]
> > netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
> > tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
> > tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
> > tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
> > new_sync_write fs/read_write.c:586 [inline]
> > vfs_write+0xaeb/0xd30 fs/read_write.c:679
> > ksys_write+0x18f/0x2b0 fs/read_write.c:731
> > do_syscall_x64 arch/x86/entry/common.c:52 [inline]
> > do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
> > entry_SYSCALL_64_after_hwframe+0x77/0x7f
> > RIP: 0033:0x7f941abf7db0
> > Code: 40 00 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 80 3d f1 e2 07 00 00 74 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89
> > RSP: 002b:00007ffc09852f28 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
> > RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f941abf7db0
> > RDX: 0000000000011dc0 RSI: 00000000200004c0 RDI: 00000000000000c8
> > RBP: 0000000000000000 R08: 00007ffc09853058 R09: 00007ffc09853058
> > R10: 00007ffc09853058 R11: 0000000000000202 R12: 00007f941ac460de
> > R13: 0000000000000000 R14: 00007ffc09852f60 R15: 00007ffc09852f50
> > </TASK>
> > BUG: Bad page state in process syz-executor285 pfn:76906
> > page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x76906
> > flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
> > raw: 00fff00000000000 dead000000000040 ffff888022ab2000 0000000000000000
> > raw: 0000000000000000 0000000000000001 00000000ffffffff 0000000000000000
> > page dumped because: page_pool leak
> > page_owner tracks the page as allocated
> > page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5820, tgid 5820 (syz-executor285), ts 62999421067, free_ts 54582851254
> > set_page_owner include/linux/page_owner.h:32 [inline]
> > post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1556
> > prep_new_page mm/page_alloc.c:1564 [inline]
> > get_page_from_freelist+0x3651/0x37a0 mm/page_alloc.c:3474
> > __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4751
> > alloc_pages_bulk_noprof+0x70b/0xcc0 mm/page_alloc.c:4699
> > alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline]
> > __page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538
> > page_pool_alloc_netmem net/core/page_pool.c:590 [inline]
> > page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597
> > page_pool_alloc include/net/page_pool/helpers.h:129 [inline]
> > page_pool_dev_alloc include/net/page_pool/helpers.h:167 [inline]
> > skb_pp_cow_data+0xc43/0x1640 net/core/skbuff.c:983
> > netif_skb_check_for_xdp net/core/dev.c:5041 [inline]
> > netif_receive_generic_xdp net/core/dev.c:5080 [inline]
> > do_xdp_generic+0x505/0xd30 net/core/dev.c:5148
> > __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
> > __netif_receive_skb_one_core net/core/dev.c:5670 [inline]
> > __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
> > netif_receive_skb_internal net/core/dev.c:5871 [inline]
> > netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
> > tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
> > tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
> > tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
> > new_sync_write fs/read_write.c:586 [inline]
> > vfs_write+0xaeb/0xd30 fs/read_write.c:679
> > ksys_write+0x18f/0x2b0 fs/read_write.c:731
> > page last free pid 5807 tgid 5807 stack trace:
> > reset_page_owner include/linux/page_owner.h:25 [inline]
> > free_pages_prepare mm/page_alloc.c:1127 [inline]
> > free_unref_page+0xde3/0x1130 mm/page_alloc.c:2657
> > __folio_put+0x2c7/0x440 mm/swap.c:112
> > pipe_buf_release include/linux/pipe_fs_i.h:219 [inline]
> > pipe_update_tail fs/pipe.c:224 [inline]
> > pipe_read+0x6ed/0x13e0 fs/pipe.c:344
> > new_sync_read fs/read_write.c:484 [inline]
> > vfs_read+0x991/0xb70 fs/read_write.c:565
> > ksys_read+0x18f/0x2b0 fs/read_write.c:708
> > do_syscall_x64 arch/x86/entry/common.c:52 [inline]
> > do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
> > entry_SYSCALL_64_after_hwframe+0x77/0x7f
> > Modules linked in:
> > CPU: 0 UID: 0 PID: 5820 Comm: syz-executor285 Tainted: G B 6.13.0-rc1-syzkaller-00337-g7503345ac5f5 #0
> > Tainted: [B]=BAD_PAGE
> > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
> > Call Trace:
> > <TASK>
> > __dump_stack lib/dump_stack.c:94 [inline]
> > dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
> > bad_page+0x176/0x1d0 mm/page_alloc.c:501
> > free_page_is_bad mm/page_alloc.c:923 [inline]
> > free_pages_prepare mm/page_alloc.c:1119 [inline]
> > free_unref_page+0x1048/0x1130 mm/page_alloc.c:2657
> > bpf_xdp_shrink_data net/core/filter.c:4148 [inline]
> > bpf_xdp_frags_shrink_tail+0x3ee/0x7e0 net/core/filter.c:4169
> > ____bpf_xdp_adjust_tail net/core/filter.c:4194 [inline]
> > bpf_xdp_adjust_tail+0x1c3/0x200 net/core/filter.c:4187
> > bpf_prog_f476d5219b92964a+0x1e/0x20
> > __bpf_prog_run include/linux/filter.h:701 [inline]
> > bpf_prog_run_xdp include/net/xdp.h:514 [inline]
> > bpf_prog_run_generic_xdp+0x686/0x1510 net/core/dev.c:4973
> > netif_receive_generic_xdp net/core/dev.c:5086 [inline]
> > do_xdp_generic+0x757/0xd30 net/core/dev.c:5148
> > __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
> > __netif_receive_skb_one_core net/core/dev.c:5670 [inline]
> > __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
> > netif_receive_skb_internal net/core/dev.c:5871 [inline]
> > netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
> > tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
> > tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
> > tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
> > new_sync_write fs/read_write.c:586 [inline]
> > vfs_write+0xaeb/0xd30 fs/read_write.c:679
> > ksys_write+0x18f/0x2b0 fs/read_write.c:731
> > do_syscall_x64 arch/x86/entry/common.c:52 [inline]
> > do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
> > entry_SYSCALL_64_after_hwframe+0x77/0x7f
> > RIP: 0033:0x7f941abf7db0
> > Code: 40 00 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 80 3d f1 e2 07 00 00 74 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89
> > RSP: 002b:00007ffc09852f28 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
> > RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f941abf7db0
> > RDX: 0000000000011dc0 RSI: 00000000200004c0 RDI: 00000000000000c8
> > RBP: 0000000000000000 R08: 00007ffc09853058 R09: 00007ffc09853058
> > R10: 00007ffc09853058 R11: 0000000000000202 R12: 00007f941ac460de
> > R13: 0000000000000000 R14: 00007ffc09852f60 R15: 00007ffc09852f50
> > </TASK>
> > BUG: Bad page state in process syz-executor285 pfn:76905
> > page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x76905
> > flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
> > raw: 00fff00000000000 dead000000000040 ffff888022ab2000 0000000000000000
> > raw: 0000000000000000 0000000000000001 00000000ffffffff 0000000000000000
> > page dumped because: page_pool leak
> > page_owner tracks the page as allocated
> > page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5820, tgid 5820 (syz-executor285), ts 62999414838, free_ts 54582871367
> > set_page_owner include/linux/page_owner.h:32 [inline]
> > post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1556
> > prep_new_page mm/page_alloc.c:1564 [inline]
> > get_page_from_freelist+0x3651/0x37a0 mm/page_alloc.c:3474
> > __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4751
> > alloc_pages_bulk_noprof+0x70b/0xcc0 mm/page_alloc.c:4699
> > alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline]
> > __page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538
> > page_pool_alloc_netmem net/core/page_pool.c:590 [inline]
> > page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597
> > page_pool_alloc include/net/page_pool/helpers.h:129 [inline]
> > page_pool_dev_alloc include/net/page_pool/helpers.h:167 [inline]
> > skb_pp_cow_data+0xc43/0x1640 net/core/skbuff.c:983
> > netif_skb_check_for_xdp net/core/dev.c:5041 [inline]
> > netif_receive_generic_xdp net/core/dev.c:5080 [inline]
> > do_xdp_generic+0x505/0xd30 net/core/dev.c:5148
> > __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
> > __netif_receive_skb_one_core net/core/dev.c:5670 [inline]
> > __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
> > netif_receive_skb_internal net/core/dev.c:5871 [inline]
> > netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
> > tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
> > tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
> > tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
> > new_sync_write fs/read_write.c:586 [inline]
> > vfs_write+0xaeb/0xd30 fs/read_write.c:679
> > ksys_write+0x18f/0x2b0 fs/read_write.c:731
> > page last free pid 5807 tgid 5807 stack trace:
> > reset_page_owner include/linux/page_owner.h:25 [inline]
> > free_pages_prepare mm/page_alloc.c:1127 [inline]
> > free_unref_page+0xde3/0x1130 mm/page_alloc.c:2657
> > __folio_put+0x2c7/0x440 mm/swap.c:112
> > pipe_buf_release include/linux/pipe_fs_i.h:219 [inline]
> > pipe_update_tail fs/pipe.c:224 [inline]
> > pipe_read+0x6ed/0x13e0 fs/pipe.c:344
> > new_sync_read fs/read_write.c:484 [inline]
> > vfs_read+0x991/0xb70 fs/read_write.c:565
> > ksys_read+0x18f/0x2b0 fs/read_write.c:708
> > do_syscall_x64 arch/x86/entry/common.c:52 [inline]
> > do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
> > entry_SYSCALL_64_after_hwframe+0x77/0x7f
> > Modules linked in:
> > CPU: 0 UID: 0 PID: 5820 Comm: syz-executor285 Tainted: G B 6.13.0-rc1-syzkaller-00337-g7503345ac5f5 #0
> > Tainted: [B]=BAD_PAGE
> > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
> > Call Trace:
> > <TASK>
> > __dump_stack lib/dump_stack.c:94 [inline]
> > dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
> > bad_page+0x176/0x1d0 mm/page_alloc.c:501
> > free_page_is_bad mm/page_alloc.c:923 [inline]
> > free_pages_prepare mm/page_alloc.c:1119 [inline]
> > free_unref_page+0x1048/0x1130 mm/page_alloc.c:2657
> > bpf_xdp_shrink_data net/core/filter.c:4148 [inline]
> > bpf_xdp_frags_shrink_tail+0x3ee/0x7e0 net/core/filter.c:4169
> > ____bpf_xdp_adjust_tail net/core/filter.c:4194 [inline]
> > bpf_xdp_adjust_tail+0x1c3/0x200 net/core/filter.c:4187
> > bpf_prog_f476d5219b92964a+0x1e/0x20
> > __bpf_prog_run include/linux/filter.h:701 [inline]
> > bpf_prog_run_xdp include/net/xdp.h:514 [inline]
> > bpf_prog_run_generic_xdp+0x686/0x1510 net/core/dev.c:4973
> > netif_receive_generic_xdp net/core/dev.c:5086 [inline]
> > do_xdp_generic+0x757/0xd30 net/core/dev.c:5148
> > __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
> > __netif_receive_skb_one_core net/core/dev.c:5670 [inline]
> > __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
> > netif_receive_skb_internal net/core/dev.c:5871 [inline]
> > netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
> > tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
> > tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
> > tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
> > new_sync_write fs/read_write.c:586 [inline]
> > vfs_write+0xaeb/0xd30 fs/read_write.c:679
> > ksys_write+0x18f/0x2b0 fs/read_write.c:731
> > do_syscall_x64 arch/x86/entry/common.c:52 [inline]
> > do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
> > entry_SYSCALL_64_after_hwframe+0x77/0x7f
> > RIP: 0033:0x7f941abf7db0
> > Code: 40 00 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 80 3d f1 e2 07 00 00 74 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89
> > RSP: 002b:00007ffc09852f28 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
> > RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f941abf7db0
> > RDX: 0000000000011dc0 RSI: 00000000200004c0 RDI: 00000000000000c8
> > RBP: 0000000000000000 R08: 00007ffc09853058 R09: 00007ffc09853058
> > R10: 00007ffc09853058 R11: 0000000000000202 R12: 00007f941ac460de
> > R13: 0000000000000000 R14: 00007ffc09852f60 R15: 00007ffc09852f50
> > </TASK>
> > BUG: Bad page state in process syz-executor285 pfn:76904
> > page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x76904
> > flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
> > raw: 00fff00000000000 dead000000000040 ffff888022ab2000 0000000000000000
> > raw: 0000000000000000 0000000000000001 00000000ffffffff 0000000000000000
> > page dumped because: page_pool leak
> > page_owner tracks the page as allocated
> > page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5820, tgid 5820 (syz-executor285), ts 62999408239, free_ts 54582895841
> > set_page_owner include/linux/page_owner.h:32 [inline]
> > post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1556
> > prep_new_page mm/page_alloc.c:1564 [inline]
> > get_page_from_freelist+0x3651/0x37a0 mm/page_alloc.c:3474
> > __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4751
> > alloc_pages_bulk_noprof+0x70b/0xcc0 mm/page_alloc.c:4699
> > alloc_pages_bulk_array_node_noprof include/linux/gfp.h:239 [inline]
> > __page_pool_alloc_pages_slow+0x122/0x690 net/core/page_pool.c:538
> > page_pool_alloc_netmem net/core/page_pool.c:590 [inline]
> > page_pool_alloc_pages+0xd0/0x1c0 net/core/page_pool.c:597
> > page_pool_alloc include/net/page_pool/helpers.h:129 [inline]
> > page_pool_dev_alloc include/net/page_pool/helpers.h:167 [inline]
> > skb_pp_cow_data+0xc43/0x1640 net/core/skbuff.c:983
> > netif_skb_check_for_xdp net/core/dev.c:5041 [inline]
> > netif_receive_generic_xdp net/core/dev.c:5080 [inline]
> > do_xdp_generic+0x505/0xd30 net/core/dev.c:5148
> > __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
> > __netif_receive_skb_one_core net/core/dev.c:5670 [inline]
> > __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
> > netif_receive_skb_internal net/core/dev.c:5871 [inline]
> > netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
> > tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
> > tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
> > tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
> > new_sync_write fs/read_write.c:586 [inline]
> > vfs_write+0xaeb/0xd30 fs/read_write.c:679
> > ksys_write+0x18f/0x2b0 fs/read_write.c:731
> > page last free pid 5807 tgid 5807 stack trace:
> > reset_page_owner include/linux/page_owner.h:25 [inline]
> > free_pages_prepare mm/page_alloc.c:1127 [inline]
> > free_unref_page+0xde3/0x1130 mm/page_alloc.c:2657
> > __folio_put+0x2c7/0x440 mm/swap.c:112
> > pipe_buf_release include/linux/pipe_fs_i.h:219 [inline]
> > pipe_update_tail fs/pipe.c:224 [inline]
> > pipe_read+0x6ed/0x13e0 fs/pipe.c:344
> > new_sync_read fs/read_write.c:484 [inline]
> > vfs_read+0x991/0xb70 fs/read_write.c:565
> > ksys_read+0x18f/0x2b0 fs/read_write.c:708
> > do_syscall_x64 arch/x86/entry/common.c:52 [inline]
> > do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
> > entry_SYSCALL_64_after_hwframe+0x77/0x7f
> > Modules linked in:
> > CPU: 0 UID: 0 PID: 5820 Comm: syz-executor285 Tainted: G B 6.13.0-rc1-syzkaller-00337-g7503345ac5f5 #0
> > Tainted: [B]=BAD_PAGE
> > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
> > Call Trace:
> > <TASK>
> > __dump_stack lib/dump_stack.c:94 [inline]
> > dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
> > bad_page+0x176/0x1d0 mm/page_alloc.c:501
> > free_page_is_bad mm/page_alloc.c:923 [inline]
> > free_pages_prepare mm/page_alloc.c:1119 [inline]
> > free_unref_page+0x1048/0x1130 mm/page_alloc.c:2657
> > bpf_xdp_shrink_data net/core/filter.c:4148 [inline]
> > bpf_xdp_frags_shrink_tail+0x3ee/0x7e0 net/core/filter.c:4169
> > ____bpf_xdp_adjust_tail net/core/filter.c:4194 [inline]
> > bpf_xdp_adjust_tail+0x1c3/0x200 net/core/filter.c:4187
> > bpf_prog_f476d5219b92964a+0x1e/0x20
> > __bpf_prog_run include/linux/filter.h:701 [inline]
> > bpf_prog_run_xdp include/net/xdp.h:514 [inline]
> > bpf_prog_run_generic_xdp+0x686/0x1510 net/core/dev.c:4973
> > netif_receive_generic_xdp net/core/dev.c:5086 [inline]
> > do_xdp_generic+0x757/0xd30 net/core/dev.c:5148
> > __netif_receive_skb_core+0x1ce9/0x4690 net/core/dev.c:5492
> > __netif_receive_skb_one_core net/core/dev.c:5670 [inline]
> > __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
> > netif_receive_skb_internal net/core/dev.c:5871 [inline]
> > netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
> > tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
> > tun_get_user+0x30d6/0x4890 drivers/net/tun.c:2007
> > tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
> > new_sync_write fs/read_write.c:586 [inline]
> > vfs_write+0xaeb/0xd30 fs/read_write.c:679
> > ksys_write+0x18f/0x2b0 fs/read_write.c:731
> > do_syscall_x64 arch/x86/entry/common.c:52 [inline]
> > do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
> > entry_SYSCALL_64_after_hwframe+0x77/0x7f
> > RIP: 0033:0x7f941abf7db0
> > Code: 40 00 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 80 3d f1 e2 07 00 00 74 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89
> > RSP: 002b:00007ffc09852f28 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
> > RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f941abf7db0
> > RDX: 0000000000011dc0 RSI: 00000000200004c0 RDI: 00000000000000c8
> > RBP: 0000000000000000 R08: 00007ffc09853058 R09: 00007ffc09853058
> > R10: 00007ffc09853058 R11: 0000000000000202 R12: 00007f941ac460de
> > R13: 0000000000000000 R14: 00007ffc09852f60 R15: 00007ffc09852f50
> > </TASK>
> >
> >
> > ---
> > This report is generated by a bot. It may contain errors.
> > See https://goo.gl/tpsmEJ for more information about syzbot.
> > syzbot engineers can be reached at syzkaller@googlegroups.com.
> >
> > syzbot will keep track of this issue. See:
> > https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
> > For information about bisection process see: https://goo.gl/tpsmEJ#bisection
> >
> > If the report is already addressed, let syzbot know by replying with:
> > #syz fix: exact-commit-title
> >
> > If you want syzbot to run the reproducer, reply with:
> > #syz test: git://repo/address.git branch-or-commit-hash
> > If you attach or paste a git patch, syzbot will apply it before testing.
> >
> > If you want to overwrite report's subsystems, reply with:
> > #syz set subsystems: new-subsystem
> > (See the list of subsystem names on the web dashboard)
> >
> > If the report is a duplicate of another one, reply with:
> > #syz dup: exact-subject-of-another-report
> >
> > If you want to undo deduplication, reply with:
> > #syz undup
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2024-12-11 13:42 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
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2024-12-09 10:16 [syzbot] [net?] BUG: Bad page state in skb_pp_cow_data syzbot
2024-12-09 17:15 ` Lorenzo Bianconi
2024-12-11 13:41 ` Ilias Apalodimas
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