public inbox for linux-kernel@vger.kernel.org
 help / color / mirror / Atom feed
* [syzbot] [ocfs2?] KASAN: use-after-free Read in ocfs2_dx_dir_lookup_rec
@ 2025-09-28 10:54 syzbot
  0 siblings, 0 replies; 15+ messages in thread
From: syzbot @ 2025-09-28 10:54 UTC (permalink / raw)
  To: jlbec, joseph.qi, linux-kernel, mark, ocfs2-devel, syzkaller-bugs

Hello,

syzbot found the following issue on:

HEAD commit:    51a24b7deaae Merge tag 'trace-tools-v6.17-rc5' of git://gi..
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=1531fd34580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=bf99f2510ef92ba5
dashboard link: https://syzkaller.appspot.com/bug?extid=30b53487d00b4f7f0922
compiler:       Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=14263f12580000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=14a8f142580000

Downloadable assets:
disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/d900f083ada3/non_bootable_disk-51a24b7d.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/2d2422223a2d/vmlinux-51a24b7d.xz
kernel image: https://storage.googleapis.com/syzbot-assets/3f33b7e0feca/bzImage-51a24b7d.xz
mounted in repro: https://storage.googleapis.com/syzbot-assets/8f3233dafc3f/mount_0.gz
  fsck result: OK (log: https://syzkaller.appspot.com/x/fsck.log?x=16b3aae2580000)

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+30b53487d00b4f7f0922@syzkaller.appspotmail.com

On-disk corruption discovered. Please run fsck.ocfs2 once the filesystem is unmounted.
OCFS2: File system is now read-only.
(syz.0.17,5501,0):ocfs2_find_entry_dx:1037 ERROR: status = -30
==================================================================
BUG: KASAN: use-after-free in ocfs2_dx_dir_lookup_rec+0x1eb/0x7f0 fs/ocfs2/dir.c:813
Read of size 4 at addr ffff88804cddc2c0 by task syz.0.17/5501

CPU: 0 UID: 0 PID: 5501 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0xca/0x240 mm/kasan/report.c:482
 kasan_report+0x118/0x150 mm/kasan/report.c:595
 ocfs2_dx_dir_lookup_rec+0x1eb/0x7f0 fs/ocfs2/dir.c:813
 ocfs2_dx_dir_lookup+0xdb/0x520 fs/ocfs2/dir.c:868
 ocfs2_dx_dir_search fs/ocfs2/dir.c:928 [inline]
 ocfs2_find_entry_dx fs/ocfs2/dir.c:1042 [inline]
 ocfs2_find_entry+0x1004/0x2000 fs/ocfs2/dir.c:1079
 ocfs2_check_dir_for_entry+0x14c/0x3f0 fs/ocfs2/dir.c:2048
 ocfs2_mknod+0x697/0x2050 fs/ocfs2/namei.c:291
 ocfs2_create+0x1a5/0x440 fs/ocfs2/namei.c:676
 lookup_open fs/namei.c:3708 [inline]
 open_last_lookups fs/namei.c:3807 [inline]
 path_openat+0x14f4/0x3830 fs/namei.c:4043
 do_filp_open+0x1fa/0x410 fs/namei.c:4073
 do_sys_openat2+0x121/0x1c0 fs/open.c:1435
 do_sys_open fs/open.c:1450 [inline]
 __do_sys_openat fs/open.c:1466 [inline]
 __se_sys_openat fs/open.c:1461 [inline]
 __x64_sys_openat+0x138/0x170 fs/open.c:1461
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f01a478eec9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffe14ee92e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f01a49e5fa0 RCX: 00007f01a478eec9
RDX: 0000000000105042 RSI: 0000200000000080 RDI: ffffffffffffff9c
RBP: 00007f01a4811f91 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000000001ff R11: 0000000000000246 R12: 0000000000000000
R13: 00007f01a49e5fa0 R14: 00007f01a49e5fa0 R15: 0000000000000004
 </TASK>

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x7f45e8d66 pfn:0x4cddc
flags: 0x4fff00000000000(node=1|zone=1|lastcpupid=0x7ff)
raw: 04fff00000000000 ffffea0001337748 ffffea00013376c8 0000000000000000
raw: 00000007f45e8d66 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as freed
page last allocated via order 0, migratetype Movable, gfp_mask 0x140dca(GFP_HIGHUSER_MOVABLE|__GFP_ZERO|__GFP_COMP), pid 5347, tgid 5347 (syz-executor), ts 83789570758, free_ts 89515838215
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x240/0x2a0 mm/page_alloc.c:1851
 prep_new_page mm/page_alloc.c:1859 [inline]
 get_page_from_freelist+0x21e4/0x22c0 mm/page_alloc.c:3858
 __alloc_frozen_pages_noprof+0x181/0x370 mm/page_alloc.c:5148
 alloc_pages_mpol+0x232/0x4a0 mm/mempolicy.c:2416
 folio_alloc_mpol_noprof mm/mempolicy.c:2435 [inline]
 vma_alloc_folio_noprof+0xe4/0x200 mm/mempolicy.c:2470
 folio_prealloc+0x30/0x180 mm/memory.c:-1
 alloc_anon_folio mm/memory.c:4997 [inline]
 do_anonymous_page mm/memory.c:5054 [inline]
 do_pte_missing mm/memory.c:4232 [inline]
 handle_pte_fault mm/memory.c:6052 [inline]
 __handle_mm_fault+0x2ab9/0x5440 mm/memory.c:6195
 handle_mm_fault+0x40a/0x8e0 mm/memory.c:6364
 do_user_addr_fault+0xa81/0x1390 arch/x86/mm/fault.c:1336
 handle_page_fault arch/x86/mm/fault.c:1476 [inline]
 exc_page_fault+0x76/0xf0 arch/x86/mm/fault.c:1532
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
page last free pid 5347 tgid 5347 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1395 [inline]
 free_unref_folios+0xdbd/0x1520 mm/page_alloc.c:2952
 folios_put_refs+0x559/0x640 mm/swap.c:999
 free_pages_and_swap_cache+0x277/0x520 mm/swap_state.c:264
 __tlb_batch_free_encoded_pages mm/mmu_gather.c:136 [inline]
 tlb_batch_pages_flush mm/mmu_gather.c:149 [inline]
 tlb_flush_mmu_free mm/mmu_gather.c:397 [inline]
 tlb_flush_mmu+0x3a0/0x680 mm/mmu_gather.c:404
 tlb_finish_mmu+0xc3/0x1d0 mm/mmu_gather.c:497
 vms_clear_ptes+0x42c/0x540 mm/vma.c:1235
 vms_complete_munmap_vmas+0x206/0x8a0 mm/vma.c:1277
 do_vmi_align_munmap+0x358/0x420 mm/vma.c:1536
 do_vmi_munmap+0x253/0x2e0 mm/vma.c:1584
 __vm_munmap+0x23b/0x3d0 mm/vma.c:3155
 __do_sys_munmap mm/mmap.c:1080 [inline]
 __se_sys_munmap mm/mmap.c:1077 [inline]
 __x64_sys_munmap+0x60/0x70 mm/mmap.c:1077
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Memory state around the buggy address:
 ffff88804cddc180: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff88804cddc200: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
>ffff88804cddc280: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
                                           ^
 ffff88804cddc300: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff88804cddc380: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
==================================================================


---
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.

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] 15+ messages in thread

* Re: [syzbot] [ocfs2?] KASAN: use-after-free Read in ocfs2_dx_dir_lookup_rec
       [not found] <f051f396-cc01-4d8e-a6db-22f7578b1499@yandex.ru>
@ 2025-09-29 14:05 ` syzbot
  0 siblings, 0 replies; 15+ messages in thread
From: syzbot @ 2025-09-29 14:05 UTC (permalink / raw)
  To: dmantipov, linux-kernel, syzkaller-bugs

Hello,

syzbot has tested the proposed patch and the reproducer did not trigger any issue:

Reported-by: syzbot+30b53487d00b4f7f0922@syzkaller.appspotmail.com
Tested-by: syzbot+30b53487d00b4f7f0922@syzkaller.appspotmail.com

Tested on:

commit:         e5f0a698 Linux 6.17
git tree:       https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
console output: https://syzkaller.appspot.com/x/log.txt?x=10261ae2580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=bf99f2510ef92ba5
dashboard link: https://syzkaller.appspot.com/bug?extid=30b53487d00b4f7f0922
compiler:       Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8
patch:          https://syzkaller.appspot.com/x/patch.diff?x=1540ff12580000

Note: testing is done by a robot and is best-effort only.

^ permalink raw reply	[flat|nested] 15+ messages in thread

* Re: [syzbot] [ocfs2?] KASAN: use-after-free Read in ocfs2_dx_dir_lookup_rec
       [not found] <20251022121231.xCumE%dmantipov@yandex.ru>
@ 2025-10-22 12:55 ` syzbot
  0 siblings, 0 replies; 15+ messages in thread
From: syzbot @ 2025-10-22 12:55 UTC (permalink / raw)
  To: dmantipov, linux-kernel, syzkaller-bugs

Hello,

syzbot has tested the proposed patch and the reproducer did not trigger any issue:

Reported-by: syzbot+30b53487d00b4f7f0922@syzkaller.appspotmail.com
Tested-by: syzbot+30b53487d00b4f7f0922@syzkaller.appspotmail.com

Tested on:

commit:         552c5071 Merge tag 'vfio-v6.18-rc3' of https://github...
git tree:       https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
console output: https://syzkaller.appspot.com/x/log.txt?x=11ce9b04580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=cb89820a01e5d251
dashboard link: https://syzkaller.appspot.com/bug?extid=30b53487d00b4f7f0922
compiler:       Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8
patch:          https://syzkaller.appspot.com/x/patch.diff?x=12c2ce7c580000

Note: testing is done by a robot and is best-effort only.

^ permalink raw reply	[flat|nested] 15+ messages in thread

* Re: [syzbot] [ocfs2?] KASAN: use-after-free Read in ocfs2_dx_dir_lookup_rec
       [not found] <20251024071150.SJlVy%dmantipov@yandex.ru>
@ 2025-10-24  7:22 ` syzbot
  0 siblings, 0 replies; 15+ messages in thread
From: syzbot @ 2025-10-24  7:22 UTC (permalink / raw)
  To: dmantipov, linux-kernel, syzkaller-bugs

Hello,

syzbot tried to test the proposed patch but the build/boot failed:

 T5709] bridge0: port 1(bridge_slave_0) entered forwarding state
[   68.240298][ T5709] 8021q: adding VLAN 0 to HW filter on device bond0
[   68.252314][ T3052] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
[   68.259280][ T3052] bridge0: port 1(bridge_slave_0) entered disabled state
[   68.266321][ T3052] bridge0: port 2(bridge_slave_1) entered disabled state
[   68.273111][ T3052] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready
[   68.283113][ T5709] 8021q: adding VLAN 0 to HW filter on device team0
[   68.292693][ T3052] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready
[   68.299864][ T3052] bridge0: port 1(bridge_slave_0) entered blocking state
[   68.306738][ T3052] bridge0: port 1(bridge_slave_0) entered forwarding state
[   68.323464][ T3052] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready
[   68.330362][ T3052] bridge0: port 2(bridge_slave_1) entered blocking state
[   68.336215][ T3052] bridge0: port 2(bridge_slave_1) entered forwarding state
[   68.345510][ T3052] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready
[   68.360723][ T5709] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network
[   68.370569][ T5709] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network
[   68.383585][ T3052] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready
[   68.390265][ T3052] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready
[   68.397595][ T3052] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready
[   68.404843][ T3052] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready
[   68.419136][ T3052] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready
[   68.475464][ T3020] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
[   68.482714][ T3020] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
[   68.492279][ T5709] 8021q: adding VLAN 0 to HW filter on device batadv0
[   68.504284][ T3020] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready
[   68.518322][ T5709] device veth0_vlan entered promiscuous mode
[   68.524533][ T3020] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready
[   68.532452][ T3020] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready
[   68.538937][ T3020] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready
[   68.548991][ T5709] device veth1_vlan entered promiscuous mode
[   68.561923][ T3020] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready
[   68.577076][ T3020] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready
[   68.584768][ T3020] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready
[   68.593467][ T5709] device veth0_macvtap entered promiscuous mode
[   68.600185][ T5709] device veth1_macvtap entered promiscuous mode
[   68.612225][ T5709] batman_adv: batadv0: Interface activated: batadv_slave_0
[   68.618206][ T3020] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready
[   68.627196][ T3020] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready
[   68.636160][ T5709] batman_adv: batadv0: Interface activated: batadv_slave_1
[   68.642694][ T3020] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
[   68.650882][ T5709] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[   68.658395][ T5709] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[   68.666616][ T5709] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[   68.674870][ T5709] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[   68.687772][ T3020] ================================================================================
[   68.695596][ T3020] UBSAN: signed-integer-overflow in ./arch/x86/include/asm/atomic.h:165:11
[   68.703028][ T3020] 1496745227 + 1827093953 cannot be represented in type 'int'
[   68.710244][ T3020] CPU: 0 PID: 3020 Comm: kworker/u2:4 Not tainted syzkaller #0
[   68.716579][ T3020] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[   68.725798][ T3020] Workqueue: wg-kex-wg0 wg_packet_handshake_send_worker
[   68.731523][ T3020] Call Trace:
[   68.734230][ T3020]  dump_stack+0xfd/0x16e
[   68.737665][ T3020]  ubsan_epilogue+0xa/0x30
[   68.741273][ T3020]  handle_overflow+0x192/0x1b0
[   68.745235][ T3020]  ? prandom_u32+0x217/0x260
[   68.748968][ T3020]  ip_idents_reserve+0x14a/0x170
[   68.753042][ T3020]  __ip_select_ident+0xe4/0x1c0
[   68.757100][ T3020]  iptunnel_xmit+0x468/0x850
[   68.760939][ T3020]  udp_tunnel_xmit_skb+0x1ba/0x290
[   68.765181][ T3020]  send4+0x5d4/0xaf0
[   68.768350][ T3020]  wg_socket_send_skb_to_peer+0xcd/0x1c0
[   68.772983][ T3020]  wg_packet_handshake_send_worker+0x16b/0x280
[   68.778059][ T3020]  process_one_work+0x85e/0xff0
[   68.782159][ T3020]  worker_thread+0xa9b/0x1430
[   68.786018][ T3020]  ? rcu_lock_release+0x20/0x20
[   68.790096][ T3020]  kthread+0x386/0x410
[   68.793572][ T3020]  ? rcu_lock_release+0x20/0x20
[   68.797547][ T3020]  ? kthread_blkcg+0xd0/0xd0
[   68.801233][ T3020]  ret_from_fork+0x1f/0x30
[   68.805017][ T3020] ================================================================================
[   68.812880][ T3020] Kernel panic - not syncing: UBSAN: panic_on_warn set ...
[   68.818697][ T3020] CPU: 0 PID: 3020 Comm: kworker/u2:4 Not tainted syzkaller #0
[   68.824803][ T3020] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[   68.833531][ T3020] Workqueue: wg-kex-wg0 wg_packet_handshake_send_worker
[   68.839263][ T3020] Call Trace:
[   68.841987][ T3020]  dump_stack+0xfd/0x16e
[   68.845483][ T3020]  panic+0x2f0/0x9c0
[   68.848723][ T3020]  check_panic_on_warn+0x95/0xe0
[   68.852928][ T3020]  handle_overflow+0x192/0x1b0
[   68.856879][ T3020]  ? prandom_u32+0x217/0x260
[   68.860645][ T3020]  ip_idents_reserve+0x14a/0x170
[   68.864734][ T3020]  __ip_select_ident+0xe4/0x1c0
[   68.868721][ T3020]  iptunnel_xmit+0x468/0x850
[   68.872545][ T3020]  udp_tunnel_xmit_skb+0x1ba/0x290
[   68.876778][ T3020]  send4+0x5d4/0xaf0
[   68.879994][ T3020]  wg_socket_send_skb_to_peer+0xcd/0x1c0
[   68.884597][ T3020]  wg_packet_handshake_send_worker+0x16b/0x280
[   68.889687][ T3020]  process_one_work+0x85e/0xff0
[   68.893658][ T3020]  worker_thread+0xa9b/0x1430
[   68.897487][ T3020]  ? rcu_lock_release+0x20/0x20
[   68.901443][ T3020]  kthread+0x386/0x410
[   68.904823][ T3020]  ? rcu_lock_release+0x20/0x20
[   68.908761][ T3020]  ? kthread_blkcg+0xd0/0xd0
[   68.912531][ T3020]  ret_from_fork+0x1f/0x30
[   68.916474][ T3020] Kernel Offset: disabled
[   68.920027][ T3020] Rebooting in 86400 seconds..

VM DIAGNOSIS:
07:21:42  Registers:
info registers vcpu 0

CPU#0
RAX=1ffffffff2c2d760 RBX=00000000000003fd RCX=0000000000000000 RDX=00000000000003fd
RSI=0000000000000000 RDI=0000000000000020 RBP=0000000000000020 RSP=ffffc900018d7488
R8 =dffffc0000000000 R9 =fffff5200031ae9e R10=fffff5200031ae9e R11=ffffffff83f6a420
R12=dffffc0000000000 R13=1ffffffff2ad0463 R14=ffffffff9616bde0 R15=0000000000000000
RIP=ffffffff83f6a493 RFL=00000002 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=0
ES =0000 0000000000000000 ffffffff 00c00000
CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA]
SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS   [-WA]
DS =0000 0000000000000000 ffffffff 00c00000
FS =0000 0000000000000000 ffffffff 00c00000
GS =0000 ffff888020600000 ffffffff 00c00000
LDT=0000 0000000000000000 ffffffff 00c00000
TR =0040 fffffe0000003000 00004087 00008b00 DPL=0 TSS64-busy
GDT=     fffffe0000001000 0000007f
IDT=     fffffe0000000000 00000fff
CR0=80050033 CR2=00007f70fa315e9c CR3=00000000552ec000 CR4=00350ef0
DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 
DR6=00000000fffe0ff0 DR7=0000000000000400
EFER=0000000000000d01
FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80
FPR0=0000000000000000 0000 FPR1=0000000000000000 0000
FPR2=0000000000000000 0000 FPR3=0000000000000000 0000
FPR4=0000000000000000 0000 FPR5=0000000000000000 0000
FPR6=0000000000000000 0000 FPR7=0000000000000000 0000
Opmask00=0000000004222200 Opmask01=0000000000000fff Opmask02=00000000ffffffef Opmask03=0000000000000000
Opmask04=0000000000000000 Opmask05=0000000000000000 Opmask06=0000000000000000 Opmask07=0000000000000000
ZMM00=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 cdbdb4c6f9b3cfa9 ccfdd53f3940cda9
ZMM01=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 61f8e5020c5491fa 26bc4e1f9a76504d
ZMM02=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 d36be18d52e74008 92e0425df8168802
ZMM03=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 646f3db649b453b8 e19fc6320e65a175
ZMM04=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 00000000ffffffff 00000000000000b4
ZMM05=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000034
ZMM06=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 b7184e26892817da 642e11a230cac1df
ZMM07=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 027c24cb4c152817 0000000000000000
ZMM08=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 64b81aac9d6a7288 bca2e73a631a5a4e
ZMM09=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 8e994ecd00000000 f2462c1638d210f8
ZMM10=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 b60ba1988284cefc 87c3fed8a05ffd9a
ZMM11=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 eae31e2d506dbe72 ca832c4f00373649
ZMM12=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM13=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM14=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 a54ff53a3c6ef372 bb67ae856a09e667
ZMM15=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 5be0cd191f83d9ab 9b05688c510e527f
ZMM16=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM17=0000000000000000 0000000000000000 0000000000000000 0000000000000000 2525252525252525 2525252525252525 2525252525252525 2525252525252525
ZMM18=0000000000000000 0000000000000000 0000000000000000 0000000000000000 6c6c255b20642523 00202c0028732520 3e2d205d736d756c 6c255b2064252300
ZMM19=0000000000000000 0000000000000000 0000000000000000 0000000000000000 4949005b05410006 000509000d560005 1b08055d56485049 49005b0541000600
ZMM20=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM21=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM22=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM23=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM24=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM25=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM26=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM27=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM28=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM29=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM30=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM31=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000


syzkaller build log:
go env (err=<nil>)
AR='ar'
CC='gcc'
CGO_CFLAGS='-O2 -g'
CGO_CPPFLAGS=''
CGO_CXXFLAGS='-O2 -g'
CGO_ENABLED='1'
CGO_FFLAGS='-O2 -g'
CGO_LDFLAGS='-O2 -g'
CXX='g++'
GCCGO='gccgo'
GO111MODULE='auto'
GOAMD64='v1'
GOARCH='amd64'
GOAUTH='netrc'
GOBIN=''
GOCACHE='/syzkaller/.cache/go-build'
GOCACHEPROG=''
GODEBUG=''
GOENV='/syzkaller/.config/go/env'
GOEXE=''
GOEXPERIMENT=''
GOFIPS140='off'
GOFLAGS=''
GOGCCFLAGS='-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=/tmp/go-build1635881792=/tmp/go-build -gno-record-gcc-switches'
GOHOSTARCH='amd64'
GOHOSTOS='linux'
GOINSECURE=''
GOMOD='/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/go.mod'
GOMODCACHE='/syzkaller/jobs/linux/gopath/pkg/mod'
GONOPROXY=''
GONOSUMDB=''
GOOS='linux'
GOPATH='/syzkaller/jobs/linux/gopath'
GOPRIVATE=''
GOPROXY='https://proxy.golang.org,direct'
GOROOT='/usr/local/go'
GOSUMDB='sum.golang.org'
GOTELEMETRY='local'
GOTELEMETRYDIR='/syzkaller/.config/go/telemetry'
GOTMPDIR=''
GOTOOLCHAIN='auto'
GOTOOLDIR='/usr/local/go/pkg/tool/linux_amd64'
GOVCS=''
GOVERSION='go1.24.4'
GOWORK=''
PKG_CONFIG='pkg-config'

git status (err=<nil>)
HEAD detached at 001c90610fb
nothing to commit, working tree clean


tput: No value for $TERM and no -T specified
tput: No value for $TERM and no -T specified
Makefile:31: run command via tools/syz-env for best compatibility, see:
Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contributing.md#using-syz-env
go list -f '{{.Stale}}' -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=001c90610fb2f2ac7cbbc9cd6af3f547b821a8ad -X github.com/google/syzkaller/prog.gitRevisionDate=20250926-171341"  ./sys/syz-sysgen | grep -q false || go install -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=001c90610fb2f2ac7cbbc9cd6af3f547b821a8ad -X github.com/google/syzkaller/prog.gitRevisionDate=20250926-171341"  ./sys/syz-sysgen
make .descriptions
tput: No value for $TERM and no -T specified
tput: No value for $TERM and no -T specified
Makefile:31: run command via tools/syz-env for best compatibility, see:
Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contributing.md#using-syz-env
bin/syz-sysgen
touch .descriptions
GOOS=linux GOARCH=amd64 go build -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=001c90610fb2f2ac7cbbc9cd6af3f547b821a8ad -X github.com/google/syzkaller/prog.gitRevisionDate=20250926-171341"  -o ./bin/linux_amd64/syz-execprog github.com/google/syzkaller/tools/syz-execprog
mkdir -p ./bin/linux_amd64
g++ -o ./bin/linux_amd64/syz-executor executor/executor.cc \
	-m64 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -Wno-stringop-overflow -Wno-array-bounds -Wno-format-overflow -Wno-unused-but-set-variable -Wno-unused-command-line-argument -static-pie -std=c++17 -I. -Iexecutor/_include   -DGOOS_linux=1 -DGOARCH_amd64=1 \
	-DHOSTGOOS_linux=1 -DGIT_REVISION=\"001c90610fb2f2ac7cbbc9cd6af3f547b821a8ad\"
/usr/bin/ld: /tmp/ccZqxKJx.o: in function `Connection::Connect(char const*, char const*)':
executor.cc:(.text._ZN10Connection7ConnectEPKcS1_[_ZN10Connection7ConnectEPKcS1_]+0x104): warning: Using 'gethostbyname' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking
./tools/check-syzos.sh 2>/dev/null


Error text is too large and was truncated, full error text is at:
https://syzkaller.appspot.com/x/error.txt?x=11068c92580000


Tested on:

commit:         d3d0b4e2 Linux 5.10.245
git tree:       https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git linux-5.10.y
kernel config:  https://syzkaller.appspot.com/x/.config?x=7c6f4ecbfb251fb
dashboard link: https://syzkaller.appspot.com/bug?extid=30b53487d00b4f7f0922
compiler:       Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8
patch:          https://syzkaller.appspot.com/x/patch.diff?x=144e63cd980000


^ permalink raw reply	[flat|nested] 15+ messages in thread

* Re: [syzbot] [ocfs2?] KASAN: use-after-free Read in ocfs2_dx_dir_lookup_rec
       [not found] <20251024071518.JlvGX%dmantipov@yandex.ru>
@ 2025-10-24  8:09 ` syzbot
  0 siblings, 0 replies; 15+ messages in thread
From: syzbot @ 2025-10-24  8:09 UTC (permalink / raw)
  To: dmantipov, linux-kernel, syzkaller-bugs

Hello,

syzbot has tested the proposed patch and the reproducer did not trigger any issue:

Reported-by: syzbot+30b53487d00b4f7f0922@syzkaller.appspotmail.com
Tested-by: syzbot+30b53487d00b4f7f0922@syzkaller.appspotmail.com

Tested on:

commit:         8e6e2188 Linux 6.1.157
git tree:       https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git linux-6.1.y
console output: https://syzkaller.appspot.com/x/log.txt?x=16a3c614580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=9d92b13f7aaac42c
dashboard link: https://syzkaller.appspot.com/bug?extid=30b53487d00b4f7f0922
compiler:       Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8
patch:          https://syzkaller.appspot.com/x/patch.diff?x=16f28258580000

Note: testing is done by a robot and is best-effort only.

^ permalink raw reply	[flat|nested] 15+ messages in thread

* Re: [syzbot] [ocfs2?] KASAN: use-after-free Read in ocfs2_dx_dir_lookup_rec
       [not found] <20251024071529.h1Iuk%dmantipov@yandex.ru>
@ 2025-10-24  9:37 ` syzbot
  0 siblings, 0 replies; 15+ messages in thread
From: syzbot @ 2025-10-24  9:37 UTC (permalink / raw)
  To: dmantipov, linux-kernel, syzkaller-bugs

Hello,

syzbot has tested the proposed patch and the reproducer did not trigger any issue:

Reported-by: syzbot+30b53487d00b4f7f0922@syzkaller.appspotmail.com
Tested-by: syzbot+30b53487d00b4f7f0922@syzkaller.appspotmail.com

Tested on:

commit:         4fc43deb Linux 6.12.55
git tree:       https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git linux-6.12.y
console output: https://syzkaller.appspot.com/x/log.txt?x=15a19be2580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=ae55ec3582be8d28
dashboard link: https://syzkaller.appspot.com/bug?extid=30b53487d00b4f7f0922
compiler:       Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8
patch:          https://syzkaller.appspot.com/x/patch.diff?x=117dc614580000

Note: testing is done by a robot and is best-effort only.

^ permalink raw reply	[flat|nested] 15+ messages in thread

* Re: [syzbot] [ocfs2?] KASAN: use-after-free Read in ocfs2_dx_dir_lookup_rec
       [not found] <20251028104003.Vih0s%dmantipov@yandex.ru>
@ 2025-10-28 10:41 ` syzbot
  0 siblings, 0 replies; 15+ messages in thread
From: syzbot @ 2025-10-28 10:41 UTC (permalink / raw)
  To: dmantipov, linux-kernel, syzkaller-bugs

Hello,

syzbot tried to test the proposed patch but the build/boot failed:

failed to checkout kernel repo https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/linux-5.10.y: failed to run ["git" "fetch" "--force" "4d52a57a3858a6eee0d0b25cc3a0c9533f747d8f" "linux-5.10.y"]: exit status 128


Tested on:

commit:         [unknown 
git tree:       https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git linux-5.10.y
kernel config:  https://syzkaller.appspot.com/x/.config?x=bf99f2510ef92ba5
dashboard link: https://syzkaller.appspot.com/bug?extid=30b53487d00b4f7f0922
compiler:       
patch:          https://syzkaller.appspot.com/x/patch.diff?x=134067e2580000


^ permalink raw reply	[flat|nested] 15+ messages in thread

* Re: [syzbot] [ocfs2?] KASAN: use-after-free Read in ocfs2_dx_dir_lookup_rec
       [not found] <20251028104117.mg9_S%dmantipov@yandex.ru>
@ 2025-10-28 10:43 ` syzbot
  0 siblings, 0 replies; 15+ messages in thread
From: syzbot @ 2025-10-28 10:43 UTC (permalink / raw)
  To: dmantipov, linux-kernel, syzkaller-bugs

Hello,

syzbot tried to test the proposed patch but the build/boot failed:

failed to checkout kernel repo https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/linux-6.1.y: failed to run ["git" "fetch" "--force" "4d52a57a3858a6eee0d0b25cc3a0c9533f747d8f" "linux-6.1.y"]: exit status 128


Tested on:

commit:         [unknown 
git tree:       https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git linux-6.1.y
kernel config:  https://syzkaller.appspot.com/x/.config?x=bf99f2510ef92ba5
dashboard link: https://syzkaller.appspot.com/bug?extid=30b53487d00b4f7f0922
compiler:       
patch:          https://syzkaller.appspot.com/x/patch.diff?x=14c067e2580000


^ permalink raw reply	[flat|nested] 15+ messages in thread

* Re: [syzbot] [ocfs2?] KASAN: use-after-free Read in ocfs2_dx_dir_lookup_rec
       [not found] <20251028104156.3QE-I%dmantipov@yandex.ru>
@ 2025-10-28 10:45 ` syzbot
  0 siblings, 0 replies; 15+ messages in thread
From: syzbot @ 2025-10-28 10:45 UTC (permalink / raw)
  To: dmantipov, linux-kernel, syzkaller-bugs

Hello,

syzbot tried to test the proposed patch but the build/boot failed:

failed to checkout kernel repo https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/linux-6.12.y: failed to run ["git" "fetch" "--force" "4d52a57a3858a6eee0d0b25cc3a0c9533f747d8f" "linux-6.12.y"]: exit status 128


Tested on:

commit:         [unknown 
git tree:       https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git linux-6.12.y
kernel config:  https://syzkaller.appspot.com/x/.config?x=bf99f2510ef92ba5
dashboard link: https://syzkaller.appspot.com/bug?extid=30b53487d00b4f7f0922
compiler:       
patch:          https://syzkaller.appspot.com/x/patch.diff?x=11a2dd42580000


^ permalink raw reply	[flat|nested] 15+ messages in thread

* Re: [syzbot] [ocfs2?] KASAN: use-after-free Read in ocfs2_dx_dir_lookup_rec
       [not found] <20251028181926.Doh7s%dmantipov@yandex.ru>
@ 2025-10-28 18:27 ` syzbot
  0 siblings, 0 replies; 15+ messages in thread
From: syzbot @ 2025-10-28 18:27 UTC (permalink / raw)
  To: dmantipov, linux-kernel, syzkaller-bugs

Hello,

syzbot tried to test the proposed patch but the build/boot failed:

fs/ocfs2/ocfs2_fs.h:474:40: error: expected ';' at end of declaration list
fs/ocfs2/ocfs2_fs.h:489:40: error: expected ';' at end of declaration list
fs/ocfs2/ocfs2_fs.h:502:43: error: expected ';' at end of declaration list
fs/ocfs2/ocfs2_fs.h:646:26: error: expected ';' at end of declaration list
fs/ocfs2/ocfs2_fs.h:659:16: error: expected ';' at end of declaration list
fs/ocfs2/ocfs2_fs.h:807:37: error: expected ';' at end of declaration list
fs/ocfs2/ocfs2_fs.h:943:43: error: expected ';' at end of declaration list
fs/ocfs2/ocfs2_fs.h:1030:39: error: expected ';' at end of declaration list


Tested on:

commit:         d3d0b4e2 Linux 5.10.245
git tree:       https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git linux-5.10.y
kernel config:  https://syzkaller.appspot.com/x/.config?x=bf99f2510ef92ba5
dashboard link: https://syzkaller.appspot.com/bug?extid=30b53487d00b4f7f0922
compiler:       Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8
patch:          https://syzkaller.appspot.com/x/patch.diff?x=1089dd42580000


^ permalink raw reply	[flat|nested] 15+ messages in thread

* Re: [syzbot] [ocfs2?] KASAN: use-after-free Read in ocfs2_dx_dir_lookup_rec
       [not found] <20251028182008.x51jP%dmantipov@yandex.ru>
@ 2025-10-28 18:52 ` syzbot
  0 siblings, 0 replies; 15+ messages in thread
From: syzbot @ 2025-10-28 18:52 UTC (permalink / raw)
  To: dmantipov, linux-kernel, syzkaller-bugs

Hello,

syzbot tried to test the proposed patch but the build/boot failed:

fs/ocfs2/ocfs2_fs.h:472:40: error: expected ';' at end of declaration list
fs/ocfs2/ocfs2_fs.h:487:40: error: expected ';' at end of declaration list
fs/ocfs2/ocfs2_fs.h:500:43: error: expected ';' at end of declaration list
fs/ocfs2/ocfs2_fs.h:644:26: error: expected ';' at end of declaration list
fs/ocfs2/ocfs2_fs.h:657:16: error: expected ';' at end of declaration list
fs/ocfs2/ocfs2_fs.h:805:37: error: expected ';' at end of declaration list
fs/ocfs2/ocfs2_fs.h:941:43: error: expected ';' at end of declaration list
fs/ocfs2/ocfs2_fs.h:1028:39: error: expected ';' at end of declaration list


Tested on:

commit:         8e6e2188 Linux 6.1.157
git tree:       https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git linux-6.1.y
kernel config:  https://syzkaller.appspot.com/x/.config?x=bf99f2510ef92ba5
dashboard link: https://syzkaller.appspot.com/bug?extid=30b53487d00b4f7f0922
compiler:       Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8
patch:          https://syzkaller.appspot.com/x/patch.diff?x=156e6932580000


^ permalink raw reply	[flat|nested] 15+ messages in thread

* Re: [syzbot] [ocfs2?] KASAN: use-after-free Read in ocfs2_dx_dir_lookup_rec
       [not found] <20251028182245.3DboF%dmantipov@yandex.ru>
@ 2025-10-28 19:32 ` syzbot
  0 siblings, 0 replies; 15+ messages in thread
From: syzbot @ 2025-10-28 19:32 UTC (permalink / raw)
  To: dmantipov, linux-kernel, syzkaller-bugs

Hello,

syzbot has tested the proposed patch and the reproducer did not trigger any issue:

Reported-by: syzbot+30b53487d00b4f7f0922@syzkaller.appspotmail.com
Tested-by: syzbot+30b53487d00b4f7f0922@syzkaller.appspotmail.com

Tested on:

commit:         4fc43deb Linux 6.12.55
git tree:       https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git linux-6.12.y
console output: https://syzkaller.appspot.com/x/log.txt?x=10a16932580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=ae55ec3582be8d28
dashboard link: https://syzkaller.appspot.com/bug?extid=30b53487d00b4f7f0922
compiler:       Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8
patch:          https://syzkaller.appspot.com/x/patch.diff?x=173377e2580000

Note: testing is done by a robot and is best-effort only.

^ permalink raw reply	[flat|nested] 15+ messages in thread

* Re: [syzbot] [ocfs2?] KASAN: use-after-free Read in ocfs2_dx_dir_lookup_rec
       [not found] <20251029062150.d06jg%dmantipov@yandex.ru>
@ 2025-10-29  6:32 ` syzbot
  0 siblings, 0 replies; 15+ messages in thread
From: syzbot @ 2025-10-29  6:32 UTC (permalink / raw)
  To: dmantipov, linux-kernel, syzkaller-bugs

Hello,

syzbot tried to test the proposed patch but the build/boot failed:

 67.405772][  T138] bridge0: port 1(bridge_slave_0) entered forwarding state
[   67.422310][  T138] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready
[   67.428814][  T138] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready
[   67.436709][  T138] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready
[   67.444616][  T138] bridge0: port 2(bridge_slave_1) entered blocking state
[   67.450434][  T138] bridge0: port 2(bridge_slave_1) entered forwarding state
[   67.457539][  T138] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready
[   67.464951][  T138] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready
[   67.472504][  T138] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready
[   67.479592][  T138] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready
[   67.486473][  T138] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready
[   67.495730][  T138] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready
[   67.506916][ T5650] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network
[   67.515281][ T5650] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network
[   67.528862][  T138] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready
[   67.536372][  T138] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready
[   67.542979][  T138] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready
[   67.557870][  T138] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready
[   67.610902][   T18] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
[   67.617048][   T18] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
[   67.627882][ T5650] 8021q: adding VLAN 0 to HW filter on device batadv0
[   67.640213][   T18] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready
[   67.654490][   T18] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready
[   67.662159][   T18] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready
[   67.668580][   T18] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready
[   67.677187][ T5650] device veth0_vlan entered promiscuous mode
[   67.691806][ T5650] device veth1_vlan entered promiscuous mode
[   67.706055][   T18] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready
[   67.713533][   T18] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready
[   67.720200][   T18] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready
[   67.729527][ T5650] device veth0_macvtap entered promiscuous mode
[   67.749810][ T5650] device veth1_macvtap entered promiscuous mode
[   67.761853][ T5650] batman_adv: batadv0: Interface activated: batadv_slave_0
[   67.767891][   T18] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready
[   67.776673][   T18] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready
[   67.784850][   T18] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready
[   67.793939][ T5650] batman_adv: batadv0: Interface activated: batadv_slave_1
[   67.801258][   T18] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready
[   67.808485][   T18] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
[   67.817996][ T5650] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[   67.828026][ T5650] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[   67.835828][ T5650] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[   67.843642][ T5650] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[   67.857737][   T18] ================================================================================
[   67.865522][   T18] UBSAN: signed-integer-overflow in ./arch/x86/include/asm/atomic.h:165:11
[   67.872603][   T18] 995543531 + 1319321246 cannot be represented in type 'int'
[   67.879702][   T18] CPU: 0 PID: 18 Comm: kworker/u2:1 Not tainted syzkaller #0
[   67.886045][   T18] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[   67.895362][   T18] Workqueue: wg-kex-wg0 wg_packet_handshake_send_worker
[   67.901364][   T18] Call Trace:
[   67.904328][   T18]  dump_stack+0xfd/0x16e
[   67.908005][   T18]  ubsan_epilogue+0xa/0x30
[   67.911778][   T18]  handle_overflow+0x192/0x1b0
[   67.915876][   T18]  ? prandom_u32+0x217/0x260
[   67.919849][   T18]  ip_idents_reserve+0x14a/0x170
[   67.924126][   T18]  __ip_select_ident+0xe4/0x1c0
[   67.928256][   T18]  iptunnel_xmit+0x468/0x850
[   67.932244][   T18]  udp_tunnel_xmit_skb+0x1ba/0x290
[   67.936638][   T18]  send4+0x5d4/0xaf0
[   67.939990][   T18]  wg_socket_send_skb_to_peer+0xcd/0x1c0
[   67.944630][   T18]  wg_packet_handshake_send_worker+0x16b/0x280
[   67.949906][   T18]  process_one_work+0x85e/0xff0
[   67.954046][   T18]  worker_thread+0xa9b/0x1430
[   67.958082][   T18]  ? rcu_lock_release+0x20/0x20
[   67.962220][   T18]  kthread+0x386/0x410
[   67.965686][   T18]  ? rcu_lock_release+0x20/0x20
[   67.969859][   T18]  ? kthread_blkcg+0xd0/0xd0
[   67.973836][   T18]  ret_from_fork+0x1f/0x30
[   67.977674][   T18] ================================================================================
[   67.985359][   T18] Kernel panic - not syncing: UBSAN: panic_on_warn set ...
[   67.991361][   T18] CPU: 0 PID: 18 Comm: kworker/u2:1 Not tainted syzkaller #0
[   67.997465][   T18] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[   68.006318][   T18] Workqueue: wg-kex-wg0 wg_packet_handshake_send_worker
[   68.012069][   T18] Call Trace:
[   68.014829][   T18]  dump_stack+0xfd/0x16e
[   68.018379][   T18]  panic+0x2f0/0x9c0
[   68.021631][   T18]  check_panic_on_warn+0x95/0xe0
[   68.025741][   T18]  handle_overflow+0x192/0x1b0
[   68.029775][   T18]  ? prandom_u32+0x217/0x260
[   68.033699][   T18]  ip_idents_reserve+0x14a/0x170
[   68.037834][   T18]  __ip_select_ident+0xe4/0x1c0
[   68.042016][   T18]  iptunnel_xmit+0x468/0x850
[   68.045881][   T18]  udp_tunnel_xmit_skb+0x1ba/0x290
[   68.050153][   T18]  send4+0x5d4/0xaf0
[   68.053501][   T18]  wg_socket_send_skb_to_peer+0xcd/0x1c0
[   68.058253][   T18]  wg_packet_handshake_send_worker+0x16b/0x280
[   68.063426][   T18]  process_one_work+0x85e/0xff0
[   68.067469][   T18]  worker_thread+0xa9b/0x1430
[   68.071345][   T18]  ? rcu_lock_release+0x20/0x20
[   68.075396][   T18]  kthread+0x386/0x410
[   68.078889][   T18]  ? rcu_lock_release+0x20/0x20
[   68.083007][   T18]  ? kthread_blkcg+0xd0/0xd0
[   68.086908][   T18]  ret_from_fork+0x1f/0x30
[   68.090956][   T18] Kernel Offset: disabled
[   68.094683][   T18] Rebooting in 86400 seconds..

VM DIAGNOSIS:
06:30:55  Registers:
info registers vcpu 0

CPU#0
RAX=0000000000000039 RBX=0000000000000039 RCX=0000000000000000 RDX=00000000000003f8
RSI=0000000000000000 RDI=0000000000000020 RBP=00000000000003f8 RSP=ffffc900004474e0
R8 =dffffc0000000000 R9 =fffff52000088e9e R10=fffff52000088e9e R11=ffffffff83f6a690
R12=dffffc0000000000 R13=1ffffffff2ad0463 R14=ffffffff9616bde0 R15=0000000000000000
RIP=ffffffff83f6a708 RFL=00000002 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=0
ES =0000 0000000000000000 ffffffff 00c00000
CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA]
SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS   [-WA]
DS =0000 0000000000000000 ffffffff 00c00000
FS =0000 0000000000000000 ffffffff 00c00000
GS =0000 ffff888020600000 ffffffff 00c00000
LDT=0000 0000000000000000 ffffffff 00c00000
TR =0040 fffffe0000003000 00004087 00008b00 DPL=0 TSS64-busy
GDT=     fffffe0000001000 0000007f
IDT=     fffffe0000000000 00000fff
CR0=80050033 CR2=00005649c4ac8168 CR3=000000003cee0000 CR4=00350ef0
DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 
DR6=00000000fffe0ff0 DR7=0000000000000400
EFER=0000000000000d01
FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80
FPR0=0000000000000000 0000 FPR1=0000000000000000 0000
FPR2=0000000000000000 0000 FPR3=0000000000000000 0000
FPR4=0000000000000000 0000 FPR5=0000000000000000 0000
FPR6=0000000000000000 0000 FPR7=0000000000000000 0000
Opmask00=0000000004222200 Opmask01=0000000000000fff Opmask02=00000000ffffffef Opmask03=0000000000000000
Opmask04=0000000000000000 Opmask05=0000000000000000 Opmask06=0000000000000000 Opmask07=0000000000000000
ZMM00=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 34c0e75a57eedab6 df075a43b3530442
ZMM01=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 cd93e3d1997b1ad0 ac02d2502393cada
ZMM02=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 739bb957f0df0046 e893118a65186997
ZMM03=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 dcce5dad54d123ff 05ce08a3fac4eb3e
ZMM04=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 00000000ffffffff 00000000000000b4
ZMM05=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000034
ZMM06=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0ad426484b0072e0 3ee4763b2d2ad138
ZMM07=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 542de23f41d7d499 0000000000000000
ZMM08=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 64f818e79afcdfd0 39f02c83a206bdbb
ZMM09=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 3caa366800000000 8c2d7c3421c3af63
ZMM10=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 2a1a2c77e3ec1418 ef53c166bcfc26d7
ZMM11=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 5689bc5aba259e21 eb51e68077b68e8f
ZMM12=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM13=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM14=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 a54ff53a3c6ef372 bb67ae856a09e667
ZMM15=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 5be0cd191f83d9ab 9b05688c510e527f
ZMM16=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM17=0000000000000000 0000000000000000 0000000000000000 0000000000000000 2525252525252525 2525252525252525 2525252525252525 2525252525252525
ZMM18=0000000000000000 0000000000000000 0000000000000000 0000000000000000 6c6c255b20642523 00202c0028732520 3e2d205d736d756c 6c255b2064252300
ZMM19=0000000000000000 0000000000000000 0000000000000000 0000000000000000 4949005b05410006 000509000d560005 1b08055d56485049 49005b0541000600
ZMM20=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM21=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM22=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM23=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM24=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM25=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM26=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM27=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM28=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM29=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM30=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM31=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000


syzkaller build log:
go env (err=<nil>)
AR='ar'
CC='gcc'
CGO_CFLAGS='-O2 -g'
CGO_CPPFLAGS=''
CGO_CXXFLAGS='-O2 -g'
CGO_ENABLED='1'
CGO_FFLAGS='-O2 -g'
CGO_LDFLAGS='-O2 -g'
CXX='g++'
GCCGO='gccgo'
GO111MODULE='auto'
GOAMD64='v1'
GOARCH='amd64'
GOAUTH='netrc'
GOBIN=''
GOCACHE='/syzkaller/.cache/go-build'
GOCACHEPROG=''
GODEBUG=''
GOENV='/syzkaller/.config/go/env'
GOEXE=''
GOEXPERIMENT=''
GOFIPS140='off'
GOFLAGS=''
GOGCCFLAGS='-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=/tmp/go-build1854730157=/tmp/go-build -gno-record-gcc-switches'
GOHOSTARCH='amd64'
GOHOSTOS='linux'
GOINSECURE=''
GOMOD='/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/go.mod'
GOMODCACHE='/syzkaller/jobs/linux/gopath/pkg/mod'
GONOPROXY=''
GONOSUMDB=''
GOOS='linux'
GOPATH='/syzkaller/jobs/linux/gopath'
GOPRIVATE=''
GOPROXY='https://proxy.golang.org,direct'
GOROOT='/usr/local/go'
GOSUMDB='sum.golang.org'
GOTELEMETRY='local'
GOTELEMETRYDIR='/syzkaller/.config/go/telemetry'
GOTMPDIR=''
GOTOOLCHAIN='auto'
GOTOOLDIR='/usr/local/go/pkg/tool/linux_amd64'
GOVCS=''
GOVERSION='go1.24.4'
GOWORK=''
PKG_CONFIG='pkg-config'

git status (err=<nil>)
HEAD detached at 001c90610fb
nothing to commit, working tree clean


tput: No value for $TERM and no -T specified
tput: No value for $TERM and no -T specified
Makefile:31: run command via tools/syz-env for best compatibility, see:
Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contributing.md#using-syz-env
go list -f '{{.Stale}}' -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=001c90610fb2f2ac7cbbc9cd6af3f547b821a8ad -X github.com/google/syzkaller/prog.gitRevisionDate=20250926-171341"  ./sys/syz-sysgen | grep -q false || go install -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=001c90610fb2f2ac7cbbc9cd6af3f547b821a8ad -X github.com/google/syzkaller/prog.gitRevisionDate=20250926-171341"  ./sys/syz-sysgen
make .descriptions
tput: No value for $TERM and no -T specified
tput: No value for $TERM and no -T specified
Makefile:31: run command via tools/syz-env for best compatibility, see:
Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contributing.md#using-syz-env
bin/syz-sysgen
touch .descriptions
GOOS=linux GOARCH=amd64 go build -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=001c90610fb2f2ac7cbbc9cd6af3f547b821a8ad -X github.com/google/syzkaller/prog.gitRevisionDate=20250926-171341"  -o ./bin/linux_amd64/syz-execprog github.com/google/syzkaller/tools/syz-execprog
mkdir -p ./bin/linux_amd64
g++ -o ./bin/linux_amd64/syz-executor executor/executor.cc \
	-m64 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -Wno-stringop-overflow -Wno-array-bounds -Wno-format-overflow -Wno-unused-but-set-variable -Wno-unused-command-line-argument -static-pie -std=c++17 -I. -Iexecutor/_include   -DGOOS_linux=1 -DGOARCH_amd64=1 \
	-DHOSTGOOS_linux=1 -DGIT_REVISION=\"001c90610fb2f2ac7cbbc9cd6af3f547b821a8ad\"
/usr/bin/ld: /tmp/ccDmF0ws.o: in function `Connection::Connect(char const*, char const*)':
executor.cc:(.text._ZN10Connection7ConnectEPKcS1_[_ZN10Connection7ConnectEPKcS1_]+0x104): warning: Using 'gethostbyname' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking
./tools/check-syzos.sh 2>/dev/null


Error text is too large and was truncated, full error text is at:
https://syzkaller.appspot.com/x/error.txt?x=11583e7c580000


Tested on:

commit:         d3d0b4e2 Linux 5.10.245
git tree:       https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git linux-5.10.y
kernel config:  https://syzkaller.appspot.com/x/.config?x=7c6f4ecbfb251fb
dashboard link: https://syzkaller.appspot.com/bug?extid=30b53487d00b4f7f0922
compiler:       Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8
patch:          https://syzkaller.appspot.com/x/patch.diff?x=145b6fe2580000


^ permalink raw reply	[flat|nested] 15+ messages in thread

* Re: [syzbot] [ocfs2?] KASAN: use-after-free Read in ocfs2_dx_dir_lookup_rec
       [not found] <20251029062544.2my66%dmantipov@yandex.ru>
@ 2025-10-29  7:27 ` syzbot
  0 siblings, 0 replies; 15+ messages in thread
From: syzbot @ 2025-10-29  7:27 UTC (permalink / raw)
  To: dmantipov, linux-kernel, syzkaller-bugs

Hello,

syzbot has tested the proposed patch and the reproducer did not trigger any issue:

Reported-by: syzbot+30b53487d00b4f7f0922@syzkaller.appspotmail.com
Tested-by: syzbot+30b53487d00b4f7f0922@syzkaller.appspotmail.com

Tested on:

commit:         8e6e2188 Linux 6.1.157
git tree:       https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git linux-6.1.y
console output: https://syzkaller.appspot.com/x/log.txt?x=14969932580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=9d92b13f7aaac42c
dashboard link: https://syzkaller.appspot.com/bug?extid=30b53487d00b4f7f0922
compiler:       Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8
patch:          https://syzkaller.appspot.com/x/patch.diff?x=1363dfe2580000

Note: testing is done by a robot and is best-effort only.

^ permalink raw reply	[flat|nested] 15+ messages in thread

* Re: [syzbot] [ocfs2?] KASAN: use-after-free Read in ocfs2_dx_dir_lookup_rec
       [not found] <20251029062739.-2Z1X%dmantipov@yandex.ru>
@ 2025-10-29  8:59 ` syzbot
  0 siblings, 0 replies; 15+ messages in thread
From: syzbot @ 2025-10-29  8:59 UTC (permalink / raw)
  To: dmantipov, linux-kernel, syzkaller-bugs

Hello,

syzbot has tested the proposed patch and the reproducer did not trigger any issue:

Reported-by: syzbot+30b53487d00b4f7f0922@syzkaller.appspotmail.com
Tested-by: syzbot+30b53487d00b4f7f0922@syzkaller.appspotmail.com

Tested on:

commit:         4fc43deb Linux 6.12.55
git tree:       https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git linux-6.12.y
console output: https://syzkaller.appspot.com/x/log.txt?x=17ef6fe2580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=ae55ec3582be8d28
dashboard link: https://syzkaller.appspot.com/bug?extid=30b53487d00b4f7f0922
compiler:       Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8
patch:          https://syzkaller.appspot.com/x/patch.diff?x=11e3dfe2580000

Note: testing is done by a robot and is best-effort only.

^ permalink raw reply	[flat|nested] 15+ messages in thread

end of thread, other threads:[~2025-10-29  8:59 UTC | newest]

Thread overview: 15+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
     [not found] <20251029062150.d06jg%dmantipov@yandex.ru>
2025-10-29  6:32 ` [syzbot] [ocfs2?] KASAN: use-after-free Read in ocfs2_dx_dir_lookup_rec syzbot
     [not found] <20251029062739.-2Z1X%dmantipov@yandex.ru>
2025-10-29  8:59 ` syzbot
     [not found] <20251029062544.2my66%dmantipov@yandex.ru>
2025-10-29  7:27 ` syzbot
     [not found] <20251028182245.3DboF%dmantipov@yandex.ru>
2025-10-28 19:32 ` syzbot
     [not found] <20251028182008.x51jP%dmantipov@yandex.ru>
2025-10-28 18:52 ` syzbot
     [not found] <20251028181926.Doh7s%dmantipov@yandex.ru>
2025-10-28 18:27 ` syzbot
     [not found] <20251028104156.3QE-I%dmantipov@yandex.ru>
2025-10-28 10:45 ` syzbot
     [not found] <20251028104117.mg9_S%dmantipov@yandex.ru>
2025-10-28 10:43 ` syzbot
     [not found] <20251028104003.Vih0s%dmantipov@yandex.ru>
2025-10-28 10:41 ` syzbot
     [not found] <20251024071529.h1Iuk%dmantipov@yandex.ru>
2025-10-24  9:37 ` syzbot
     [not found] <20251024071518.JlvGX%dmantipov@yandex.ru>
2025-10-24  8:09 ` syzbot
     [not found] <20251024071150.SJlVy%dmantipov@yandex.ru>
2025-10-24  7:22 ` syzbot
     [not found] <20251022121231.xCumE%dmantipov@yandex.ru>
2025-10-22 12:55 ` syzbot
     [not found] <f051f396-cc01-4d8e-a6db-22f7578b1499@yandex.ru>
2025-09-29 14:05 ` syzbot
2025-09-28 10:54 syzbot

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox