From: syzbot <syzbot+2845b2dfa28dec36e215@syzkaller.appspotmail.com>
To: cluster-devel.redhat.com
Subject: [Cluster-devel] [syzbot] [gfs2?] BUG: sleeping function called from invalid context in do_page_fault (3)
Date: Sun, 25 Dec 2022 07:51:46 -0800 [thread overview]
Message-ID: <000000000000f40e6d05f0a8fec7@google.com> (raw)
In-Reply-To: <0000000000007e22cb05dd7cbada@google.com>
syzbot has found a reproducer for the following issue on:
HEAD commit: a5541c0811a0 Merge branch 'for-next/core' into for-kernelci
git tree: git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci
console output: https://syzkaller.appspot.com/x/log.txt?x=11b79928480000
kernel config: https://syzkaller.appspot.com/x/.config?x=cbd4e584773e9397
dashboard link: https://syzkaller.appspot.com/bug?extid=2845b2dfa28dec36e215
compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2
userspace arch: arm64
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=156dcd50480000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1337f2e4480000
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/4b7702208fb9/disk-a5541c08.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/9ec0153ec051/vmlinux-a5541c08.xz
kernel image: https://storage.googleapis.com/syzbot-assets/6f8725ad290a/Image-a5541c08.gz.xz
mounted in repro: https://storage.googleapis.com/syzbot-assets/9d323fcb08fb/mount_0.gz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+2845b2dfa28dec36e215 at syzkaller.appspotmail.com
gfs2: fsid=syz:syz.0: H: s:SH f:H e:0 p:4002 [syz-executor363] __gfs2_lookup+0x5c/0x1dc fs/gfs2/inode.c:870
BUG: sleeping function called from invalid context at arch/arm64/mm/fault.c:599
in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 4011, name: syz-executor363
preempt_count: 0, expected: 0
RCU nest depth: 1, expected: 0
3 locks held by syz-executor363/4011:
#0:
ffff0000cfa98dd0
(
&type->i_mutex_dir_key
#8
){.+.+}-{3:3}
, at: inode_lock_shared include/linux/fs.h:766 [inline]
, at: open_last_lookups fs/namei.c:3480 [inline]
, at: path_openat+0x2e4/0x11c4 fs/namei.c:3711
#1:
ffff80000d4a4640
(
rcu_read_lock
){....}-{1:2}, at: rcu_lock_acquire+0x10/0x4c include/linux/rcupdate.h:303
#2:
ffff0000c0e15648
(
&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:136 [inline]
&mm->mmap_lock){++++}-{3:3}, at: do_page_fault+0x1ec/0x79c arch/arm64/mm/fault.c:589
CPU: 1 PID: 4011 Comm: syz-executor363 Not tainted 6.1.0-rc8-syzkaller-33330-ga5541c0811a0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Call trace:
dump_backtrace+0x1c4/0x1f0 arch/arm64/kernel/stacktrace.c:156
show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:163
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x104/0x16c lib/dump_stack.c:106
dump_stack+0x1c/0x58 lib/dump_stack.c:113
__might_resched+0x208/0x218 kernel/sched/core.c:9908
__might_sleep+0x48/0x78 kernel/sched/core.c:9837
do_page_fault+0x214/0x79c arch/arm64/mm/fault.c:599
do_translation_fault+0x78/0x194 arch/arm64/mm/fault.c:691
do_mem_abort+0x54/0x130 arch/arm64/mm/fault.c:827
el1_abort+0x3c/0x5c arch/arm64/kernel/entry-common.c:367
el1h_64_sync_handler+0x60/0xac arch/arm64/kernel/entry-common.c:427
el1h_64_sync+0x64/0x68 arch/arm64/kernel/entry.S:579
rcu_read_lock include/linux/rcupdate.h:739 [inline]
dump_holder fs/gfs2/glock.c:2332 [inline]
gfs2_dump_glock+0x4f4/0x904 fs/gfs2/glock.c:2447
gfs2_consist_inode_i+0x68/0x88 fs/gfs2/util.c:465
gfs2_dirent_scan+0x2dc/0x3b4 fs/gfs2/dir.c:602
gfs2_dirent_search+0x134/0x494 fs/gfs2/dir.c:850
gfs2_dir_search+0x58/0x130 fs/gfs2/dir.c:1650
gfs2_lookupi+0x23c/0x354 fs/gfs2/inode.c:323
__gfs2_lookup+0x5c/0x1dc fs/gfs2/inode.c:870
gfs2_atomic_open+0x74/0x148 fs/gfs2/inode.c:1274
atomic_open fs/namei.c:3276 [inline]
lookup_open fs/namei.c:3384 [inline]
open_last_lookups fs/namei.c:3481 [inline]
path_openat+0x67c/0x11c4 fs/namei.c:3711
do_filp_open+0xdc/0x1b8 fs/namei.c:3741
do_sys_openat2+0xb8/0x22c fs/open.c:1310
do_sys_open fs/open.c:1326 [inline]
__do_sys_openat fs/open.c:1342 [inline]
__se_sys_openat fs/open.c:1337 [inline]
__arm64_sys_openat+0xb0/0xe0 fs/open.c:1337
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall arch/arm64/kernel/syscall.c:52 [inline]
el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142
do_el0_svc+0x48/0x140 arch/arm64/kernel/syscall.c:197
el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:637
el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:584
Unable to handle kernel NULL pointer dereference at virtual address 0000000000000021
Mem abort info:
ESR = 0x0000000096000006
EC = 0x25: DABT (current EL), IL = 32 bits
SET = 0, FnV = 0
EA = 0, S1PTW = 0
FSC = 0x06: level 2 translation fault
Data abort info:
ISV = 0, ISS = 0x00000006
CM = 0, WnR = 0
user pgtable: 4k pages, 48-bit VAs, pgdp=0000000113364000
[0000000000000021] pgd=0800000111d8b003, p4d=0800000111d8b003, pud=0800000111d8c003, pmd=0000000000000000
Internal error: Oops: 0000000096000006 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 4011 Comm: syz-executor363 Tainted: G W 6.1.0-rc8-syzkaller-33330-ga5541c0811a0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : pid_is_meaningful fs/gfs2/glock.c:1464 [inline]
pc : dump_holder fs/gfs2/glock.c:2333 [inline]
pc : gfs2_dump_glock+0x4f4/0x904 fs/gfs2/glock.c:2447
lr : rcu_read_lock include/linux/rcupdate.h:739 [inline]
lr : dump_holder fs/gfs2/glock.c:2332 [inline]
lr : gfs2_dump_glock+0x498/0x904 fs/gfs2/glock.c:2447
sp : ffff800013503600
x29: ffff8000135037d0 x28: ffff80000cd3bac3 x27: ffff0000d1c12218
x26: 0000000000000fa2 x25: ffff8000135037a1 x24: ffff0000d07809a0
x23: 0000000000000001 x22: 0000000000000040 x21: ffff80000d4a4640
x20: ffff80000d95c000 x19: ffff0000d0780a20 x18: 00000000000003a2
x17: 000000000000b67e x16: ffff80000dbe6158 x15: ffff0000d07f9a40
x14: 0000000000000000 x13: 00000000ffffffff x12: ffff0000d07f9a40
x11: ff8080000926ce78 x10: 0000000000000000 x9 : ffff80000926ce78
x8 : ffff0000d07f9a40 x7 : ffff800009273590 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000002
x2 : 0000000000000008 x1 : ffff80000ce893cb x0 : 0000000000000001
Call trace:
rcu_read_lock include/linux/rcupdate.h:739 [inline]
dump_holder fs/gfs2/glock.c:2332 [inline]
gfs2_dump_glock+0x4f4/0x904 fs/gfs2/glock.c:2447
gfs2_consist_inode_i+0x68/0x88 fs/gfs2/util.c:465
gfs2_dirent_scan+0x2dc/0x3b4 fs/gfs2/dir.c:602
gfs2_dirent_search+0x134/0x494 fs/gfs2/dir.c:850
gfs2_dir_search+0x58/0x130 fs/gfs2/dir.c:1650
gfs2_lookupi+0x23c/0x354 fs/gfs2/inode.c:323
__gfs2_lookup+0x5c/0x1dc fs/gfs2/inode.c:870
gfs2_atomic_open+0x74/0x148 fs/gfs2/inode.c:1274
atomic_open fs/namei.c:3276 [inline]
lookup_open fs/namei.c:3384 [inline]
open_last_lookups fs/namei.c:3481 [inline]
path_openat+0x67c/0x11c4 fs/namei.c:3711
do_filp_open+0xdc/0x1b8 fs/namei.c:3741
do_sys_openat2+0xb8/0x22c fs/open.c:1310
do_sys_open fs/open.c:1326 [inline]
__do_sys_openat fs/open.c:1342 [inline]
__se_sys_openat fs/open.c:1337 [inline]
__arm64_sys_openat+0xb0/0xe0 fs/open.c:1337
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall arch/arm64/kernel/syscall.c:52 [inline]
el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142
do_el0_svc+0x48/0x140 arch/arm64/kernel/syscall.c:197
el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:637
el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:584
Code: 91178800 9117ec42 391e2688 97bcdabc (794042f4)
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
0: 91178800 add x0, x0, #0x5e2
4: 9117ec42 add x2, x2, #0x5fb
8: 391e2688 strb w8, [x20, #1929]
c: 97bcdabc bl 0xfffffffffef36afc
* 10: 794042f4 ldrh w20, [x23, #32] <-- trapping instruction
WARNING: multiple messages have this Message-ID (diff)
From: syzbot <syzbot+2845b2dfa28dec36e215@syzkaller.appspotmail.com>
To: agruenba@redhat.com, boqun.feng@gmail.com,
cluster-devel@redhat.com, linux-kernel@vger.kernel.org,
longman@redhat.com, mingo@redhat.com, peterz@infradead.org,
rpeterso@redhat.com, syzkaller-bugs@googlegroups.com,
will@kernel.org
Subject: Re: [syzbot] [gfs2?] BUG: sleeping function called from invalid context in do_page_fault (3)
Date: Sun, 25 Dec 2022 07:51:46 -0800 [thread overview]
Message-ID: <000000000000f40e6d05f0a8fec7@google.com> (raw)
In-Reply-To: <0000000000007e22cb05dd7cbada@google.com>
syzbot has found a reproducer for the following issue on:
HEAD commit: a5541c0811a0 Merge branch 'for-next/core' into for-kernelci
git tree: git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci
console output: https://syzkaller.appspot.com/x/log.txt?x=11b79928480000
kernel config: https://syzkaller.appspot.com/x/.config?x=cbd4e584773e9397
dashboard link: https://syzkaller.appspot.com/bug?extid=2845b2dfa28dec36e215
compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2
userspace arch: arm64
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=156dcd50480000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1337f2e4480000
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/4b7702208fb9/disk-a5541c08.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/9ec0153ec051/vmlinux-a5541c08.xz
kernel image: https://storage.googleapis.com/syzbot-assets/6f8725ad290a/Image-a5541c08.gz.xz
mounted in repro: https://storage.googleapis.com/syzbot-assets/9d323fcb08fb/mount_0.gz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+2845b2dfa28dec36e215@syzkaller.appspotmail.com
gfs2: fsid=syz:syz.0: H: s:SH f:H e:0 p:4002 [syz-executor363] __gfs2_lookup+0x5c/0x1dc fs/gfs2/inode.c:870
BUG: sleeping function called from invalid context at arch/arm64/mm/fault.c:599
in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 4011, name: syz-executor363
preempt_count: 0, expected: 0
RCU nest depth: 1, expected: 0
3 locks held by syz-executor363/4011:
#0:
ffff0000cfa98dd0
(
&type->i_mutex_dir_key
#8
){.+.+}-{3:3}
, at: inode_lock_shared include/linux/fs.h:766 [inline]
, at: open_last_lookups fs/namei.c:3480 [inline]
, at: path_openat+0x2e4/0x11c4 fs/namei.c:3711
#1:
ffff80000d4a4640
(
rcu_read_lock
){....}-{1:2}, at: rcu_lock_acquire+0x10/0x4c include/linux/rcupdate.h:303
#2:
ffff0000c0e15648
(
&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:136 [inline]
&mm->mmap_lock){++++}-{3:3}, at: do_page_fault+0x1ec/0x79c arch/arm64/mm/fault.c:589
CPU: 1 PID: 4011 Comm: syz-executor363 Not tainted 6.1.0-rc8-syzkaller-33330-ga5541c0811a0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Call trace:
dump_backtrace+0x1c4/0x1f0 arch/arm64/kernel/stacktrace.c:156
show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:163
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x104/0x16c lib/dump_stack.c:106
dump_stack+0x1c/0x58 lib/dump_stack.c:113
__might_resched+0x208/0x218 kernel/sched/core.c:9908
__might_sleep+0x48/0x78 kernel/sched/core.c:9837
do_page_fault+0x214/0x79c arch/arm64/mm/fault.c:599
do_translation_fault+0x78/0x194 arch/arm64/mm/fault.c:691
do_mem_abort+0x54/0x130 arch/arm64/mm/fault.c:827
el1_abort+0x3c/0x5c arch/arm64/kernel/entry-common.c:367
el1h_64_sync_handler+0x60/0xac arch/arm64/kernel/entry-common.c:427
el1h_64_sync+0x64/0x68 arch/arm64/kernel/entry.S:579
rcu_read_lock include/linux/rcupdate.h:739 [inline]
dump_holder fs/gfs2/glock.c:2332 [inline]
gfs2_dump_glock+0x4f4/0x904 fs/gfs2/glock.c:2447
gfs2_consist_inode_i+0x68/0x88 fs/gfs2/util.c:465
gfs2_dirent_scan+0x2dc/0x3b4 fs/gfs2/dir.c:602
gfs2_dirent_search+0x134/0x494 fs/gfs2/dir.c:850
gfs2_dir_search+0x58/0x130 fs/gfs2/dir.c:1650
gfs2_lookupi+0x23c/0x354 fs/gfs2/inode.c:323
__gfs2_lookup+0x5c/0x1dc fs/gfs2/inode.c:870
gfs2_atomic_open+0x74/0x148 fs/gfs2/inode.c:1274
atomic_open fs/namei.c:3276 [inline]
lookup_open fs/namei.c:3384 [inline]
open_last_lookups fs/namei.c:3481 [inline]
path_openat+0x67c/0x11c4 fs/namei.c:3711
do_filp_open+0xdc/0x1b8 fs/namei.c:3741
do_sys_openat2+0xb8/0x22c fs/open.c:1310
do_sys_open fs/open.c:1326 [inline]
__do_sys_openat fs/open.c:1342 [inline]
__se_sys_openat fs/open.c:1337 [inline]
__arm64_sys_openat+0xb0/0xe0 fs/open.c:1337
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall arch/arm64/kernel/syscall.c:52 [inline]
el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142
do_el0_svc+0x48/0x140 arch/arm64/kernel/syscall.c:197
el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:637
el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:584
Unable to handle kernel NULL pointer dereference at virtual address 0000000000000021
Mem abort info:
ESR = 0x0000000096000006
EC = 0x25: DABT (current EL), IL = 32 bits
SET = 0, FnV = 0
EA = 0, S1PTW = 0
FSC = 0x06: level 2 translation fault
Data abort info:
ISV = 0, ISS = 0x00000006
CM = 0, WnR = 0
user pgtable: 4k pages, 48-bit VAs, pgdp=0000000113364000
[0000000000000021] pgd=0800000111d8b003, p4d=0800000111d8b003, pud=0800000111d8c003, pmd=0000000000000000
Internal error: Oops: 0000000096000006 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 4011 Comm: syz-executor363 Tainted: G W 6.1.0-rc8-syzkaller-33330-ga5541c0811a0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : pid_is_meaningful fs/gfs2/glock.c:1464 [inline]
pc : dump_holder fs/gfs2/glock.c:2333 [inline]
pc : gfs2_dump_glock+0x4f4/0x904 fs/gfs2/glock.c:2447
lr : rcu_read_lock include/linux/rcupdate.h:739 [inline]
lr : dump_holder fs/gfs2/glock.c:2332 [inline]
lr : gfs2_dump_glock+0x498/0x904 fs/gfs2/glock.c:2447
sp : ffff800013503600
x29: ffff8000135037d0 x28: ffff80000cd3bac3 x27: ffff0000d1c12218
x26: 0000000000000fa2 x25: ffff8000135037a1 x24: ffff0000d07809a0
x23: 0000000000000001 x22: 0000000000000040 x21: ffff80000d4a4640
x20: ffff80000d95c000 x19: ffff0000d0780a20 x18: 00000000000003a2
x17: 000000000000b67e x16: ffff80000dbe6158 x15: ffff0000d07f9a40
x14: 0000000000000000 x13: 00000000ffffffff x12: ffff0000d07f9a40
x11: ff8080000926ce78 x10: 0000000000000000 x9 : ffff80000926ce78
x8 : ffff0000d07f9a40 x7 : ffff800009273590 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000002
x2 : 0000000000000008 x1 : ffff80000ce893cb x0 : 0000000000000001
Call trace:
rcu_read_lock include/linux/rcupdate.h:739 [inline]
dump_holder fs/gfs2/glock.c:2332 [inline]
gfs2_dump_glock+0x4f4/0x904 fs/gfs2/glock.c:2447
gfs2_consist_inode_i+0x68/0x88 fs/gfs2/util.c:465
gfs2_dirent_scan+0x2dc/0x3b4 fs/gfs2/dir.c:602
gfs2_dirent_search+0x134/0x494 fs/gfs2/dir.c:850
gfs2_dir_search+0x58/0x130 fs/gfs2/dir.c:1650
gfs2_lookupi+0x23c/0x354 fs/gfs2/inode.c:323
__gfs2_lookup+0x5c/0x1dc fs/gfs2/inode.c:870
gfs2_atomic_open+0x74/0x148 fs/gfs2/inode.c:1274
atomic_open fs/namei.c:3276 [inline]
lookup_open fs/namei.c:3384 [inline]
open_last_lookups fs/namei.c:3481 [inline]
path_openat+0x67c/0x11c4 fs/namei.c:3711
do_filp_open+0xdc/0x1b8 fs/namei.c:3741
do_sys_openat2+0xb8/0x22c fs/open.c:1310
do_sys_open fs/open.c:1326 [inline]
__do_sys_openat fs/open.c:1342 [inline]
__se_sys_openat fs/open.c:1337 [inline]
__arm64_sys_openat+0xb0/0xe0 fs/open.c:1337
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall arch/arm64/kernel/syscall.c:52 [inline]
el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142
do_el0_svc+0x48/0x140 arch/arm64/kernel/syscall.c:197
el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:637
el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:584
Code: 91178800 9117ec42 391e2688 97bcdabc (794042f4)
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
0: 91178800 add x0, x0, #0x5e2
4: 9117ec42 add x2, x2, #0x5fb
8: 391e2688 strb w8, [x20, #1929]
c: 97bcdabc bl 0xfffffffffef36afc
* 10: 794042f4 ldrh w20, [x23, #32] <-- trapping instruction
next prev parent reply other threads:[~2022-12-25 15:51 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-25 16:04 [syzbot] BUG: sleeping function called from invalid context in do_page_fault (3) syzbot
2022-12-11 8:45 ` [Cluster-devel] " syzbot
2022-12-11 8:45 ` syzbot
2022-12-25 15:51 ` syzbot [this message]
2022-12-25 15:51 ` [syzbot] [gfs2?] " syzbot
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--in-reply-to=000000000000f40e6d05f0a8fec7@google.com \
--to=syzbot+2845b2dfa28dec36e215@syzkaller.appspotmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.