From: syzbot <syzbot+52bf723c703aa9b88640-Pl5Pbv+GP7P466ipTTIvnc23WoclnBCfAL8bYrjMMd8@public.gmane.org>
To: konishi.ryusuke-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-nilfs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
syzkaller-bugs-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
Subject: [syzbot] WARNING: locking bug in nilfs_palloc_destroy_cache
Date: Sun, 06 Nov 2022 09:02:44 -0800 [thread overview]
Message-ID: <000000000000859fca05ecd04647@google.com> (raw)
Hello,
syzbot found the following issue on:
HEAD commit: bbed346d5a96 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=157dc905880000
kernel config: https://syzkaller.appspot.com/x/.config?x=3a4a45d2d827c1e
dashboard link: https://syzkaller.appspot.com/bug?extid=52bf723c703aa9b88640
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=17179651880000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=10cc5d91880000
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/e8e91bc79312/disk-bbed346d.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/c1cb3fb3b77e/vmlinux-bbed346d.xz
mounted in repro: https://storage.googleapis.com/syzbot-assets/3bd548b7efd3/mount_0.gz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+52bf723c703aa9b88640-Pl5Pbv+GP7P466ipTTIvnc23WoclnBCfAL8bYrjMMd8@public.gmane.org
------------[ cut here ]------------
DEBUG_LOCKS_WARN_ON(1)
WARNING: CPU: 1 PID: 3031 at kernel/locking/lockdep.c:231 check_wait_context kernel/locking/lockdep.c:4727 [inline]
WARNING: CPU: 1 PID: 3031 at kernel/locking/lockdep.c:231 __lock_acquire+0x2b0/0x30a4 kernel/locking/lockdep.c:5003
Modules linked in:
CPU: 1 PID: 3031 Comm: syz-executor196 Not tainted 6.0.0-rc7-syzkaller-18095-gbbed346d5a96 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/30/2022
pstate: 604000c5 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : check_wait_context kernel/locking/lockdep.c:4727 [inline]
pc : __lock_acquire+0x2b0/0x30a4 kernel/locking/lockdep.c:5003
lr : hlock_class kernel/locking/lockdep.c:231 [inline]
lr : check_wait_context kernel/locking/lockdep.c:4727 [inline]
lr : __lock_acquire+0x298/0x30a4 kernel/locking/lockdep.c:5003
sp : ffff8000129f3900
x29: ffff8000129f39e0 x28: 0000000000000001 x27: ffff0000c5371aa8
x26: ffff80000cb49def x25: ffff0000c53724d8 x24: 0000000000000000
x23: 0000000000000000 x22: 0000000000000001 x21: 0000000000000000
x20: 0000000000000000 x19: 55f07fe0846faa84 x18: 00000000000003e8
x17: ffff80000bffd6bc x16: ffff80000db49158 x15: ffff0000c5371a80
x14: 0000000000000000 x13: 0000000000000012 x12: ffff80000d5ef920
x11: ff808000081c0d5c x10: ffff80000dd0b198 x9 : 62dca878cb47c300
x8 : 0000000000000000 x7 : 4e5241575f534b43 x6 : ffff80000819545c
x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000
x2 : 0000000000000000 x1 : 0000000100000001 x0 : 0000000000000016
Call trace:
check_wait_context kernel/locking/lockdep.c:4727 [inline]
__lock_acquire+0x2b0/0x30a4 kernel/locking/lockdep.c:5003
lock_acquire+0x100/0x1f8 kernel/locking/lockdep.c:5666
__raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
_raw_spin_lock+0x54/0x6c kernel/locking/spinlock.c:154
spin_lock include/linux/spinlock.h:349 [inline]
nilfs_palloc_clear_cache fs/nilfs2/alloc.c:848 [inline]
nilfs_palloc_destroy_cache+0x2c/0xb8 fs/nilfs2/alloc.c:860
nilfs_mdt_clear+0x34/0x70 fs/nilfs2/mdt.c:478
nilfs_clear_inode+0x64/0x140 fs/nilfs2/inode.c:886
nilfs_evict_inode+0x68/0x1cc fs/nilfs2/inode.c:908
evict+0xec/0x334 fs/inode.c:665
iput_final fs/inode.c:1748 [inline]
iput+0x2c4/0x324 fs/inode.c:1774
nilfs_put_super+0x6c/0x9c fs/nilfs2/super.c:476
generic_shutdown_super+0x8c/0x190 fs/super.c:491
kill_block_super+0x30/0x78 fs/super.c:1427
deactivate_locked_super+0x70/0xe8 fs/super.c:332
deactivate_super+0xd0/0xd4 fs/super.c:363
cleanup_mnt+0x1f8/0x234 fs/namespace.c:1186
__cleanup_mnt+0x20/0x30 fs/namespace.c:1193
task_work_run+0xc4/0x14c kernel/task_work.c:177
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
do_notify_resume+0x174/0x1f0 arch/arm64/kernel/signal.c:1127
prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline]
exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline]
el0_svc+0x9c/0x150 arch/arm64/kernel/entry-common.c:637
el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:654
el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581
irq event stamp: 356107
hardirqs last enabled at (356107): [<ffff80000bfc8a34>] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:159 [inline]
hardirqs last enabled at (356107): [<ffff80000bfc8a34>] _raw_spin_unlock_irq+0x3c/0x70 kernel/locking/spinlock.c:202
hardirqs last disabled at (356106): [<ffff80000bfc8834>] __raw_spin_lock_irq include/linux/spinlock_api_smp.h:117 [inline]
hardirqs last disabled at (356106): [<ffff80000bfc8834>] _raw_spin_lock_irq+0x34/0x9c kernel/locking/spinlock.c:170
softirqs last enabled at (355348): [<ffff80000801c33c>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32
softirqs last disabled at (355346): [<ffff80000801c308>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19
---[ end trace 0000000000000000 ]---
Unable to handle kernel NULL pointer dereference at virtual address 00000000000000b8
Mem abort info:
ESR = 0x0000000096000004
EC = 0x25: DABT (current EL), IL = 32 bits
SET = 0, FnV = 0
EA = 0, S1PTW = 0
FSC = 0x04: level 0 translation fault
Data abort info:
ISV = 0, ISS = 0x00000004
CM = 0, WnR = 0
user pgtable: 4k pages, 48-bit VAs, pgdp=000000010ae77000
[00000000000000b8] pgd=0000000000000000, p4d=0000000000000000
Internal error: Oops: 0000000096000004 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 3031 Comm: syz-executor196 Tainted: G W 6.0.0-rc7-syzkaller-18095-gbbed346d5a96 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/30/2022
pstate: 604000c5 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : check_wait_context kernel/locking/lockdep.c:4727 [inline]
pc : __lock_acquire+0x2d0/0x30a4 kernel/locking/lockdep.c:5003
lr : hlock_class kernel/locking/lockdep.c:231 [inline]
lr : check_wait_context kernel/locking/lockdep.c:4727 [inline]
lr : __lock_acquire+0x298/0x30a4 kernel/locking/lockdep.c:5003
sp : ffff8000129f3900
x29: ffff8000129f39e0 x28: 0000000000000001 x27: ffff0000c5371aa8
x26: ffff80000cb49def x25: ffff0000c53724d8 x24: 0000000000000000
x23: 0000000000000000 x22: 0000000000000001 x21: 0000000000000000
x20: 0000000000000000 x19: 55f07fe0846faa84 x18: 00000000000003e8
x17: ffff80000bffd6bc x16: ffff80000db49158 x15: ffff0000c5371a80
x14: 0000000000000000 x13: 0000000000000012 x12: ffff80000d5ef920
x11: ff808000081c0d5c x10: ffff80000dd0b198 x9 : 0000000000040a84
x8 : 0000000000000000 x7 : 4e5241575f534b43 x6 : ffff80000819545c
x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000
x2 : 0000000000000000 x1 : 0000000100000001 x0 : 0000000000000016
Call trace:
hlock_class kernel/locking/lockdep.c:222 [inline]
check_wait_context kernel/locking/lockdep.c:4728 [inline]
__lock_acquire+0x2d0/0x30a4 kernel/locking/lockdep.c:5003
lock_acquire+0x100/0x1f8 kernel/locking/lockdep.c:5666
__raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
_raw_spin_lock+0x54/0x6c kernel/locking/spinlock.c:154
spin_lock include/linux/spinlock.h:349 [inline]
nilfs_palloc_clear_cache fs/nilfs2/alloc.c:848 [inline]
nilfs_palloc_destroy_cache+0x2c/0xb8 fs/nilfs2/alloc.c:860
nilfs_mdt_clear+0x34/0x70 fs/nilfs2/mdt.c:478
nilfs_clear_inode+0x64/0x140 fs/nilfs2/inode.c:886
nilfs_evict_inode+0x68/0x1cc fs/nilfs2/inode.c:908
evict+0xec/0x334 fs/inode.c:665
iput_final fs/inode.c:1748 [inline]
iput+0x2c4/0x324 fs/inode.c:1774
nilfs_put_super+0x6c/0x9c fs/nilfs2/super.c:476
generic_shutdown_super+0x8c/0x190 fs/super.c:491
kill_block_super+0x30/0x78 fs/super.c:1427
deactivate_locked_super+0x70/0xe8 fs/super.c:332
deactivate_super+0xd0/0xd4 fs/super.c:363
cleanup_mnt+0x1f8/0x234 fs/namespace.c:1186
__cleanup_mnt+0x20/0x30 fs/namespace.c:1193
task_work_run+0xc4/0x14c kernel/task_work.c:177
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
do_notify_resume+0x174/0x1f0 arch/arm64/kernel/signal.c:1127
prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline]
exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline]
el0_svc+0x9c/0x150 arch/arm64/kernel/entry-common.c:637
el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:654
el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581
Code: b002db8a 91056210 9106614a b9400329 (3942e114)
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
0: b002db8a adrp x10, 0x5b71000
4: 91056210 add x16, x16, #0x158
8: 9106614a add x10, x10, #0x198
c: b9400329 ldr w9, [x25]
* 10: 3942e114 ldrb w20, [x8, #184] <-- trapping instruction
---
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-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org
syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
syzbot can test patches for this issue, for details see:
https://goo.gl/tpsmEJ#testing-patches
WARNING: multiple messages have this Message-ID (diff)
From: syzbot <syzbot+52bf723c703aa9b88640@syzkaller.appspotmail.com>
To: konishi.ryusuke@gmail.com, linux-kernel@vger.kernel.org,
linux-nilfs@vger.kernel.org, syzkaller-bugs@googlegroups.com
Subject: [syzbot] WARNING: locking bug in nilfs_palloc_destroy_cache
Date: Sun, 06 Nov 2022 09:02:44 -0800 [thread overview]
Message-ID: <000000000000859fca05ecd04647@google.com> (raw)
Hello,
syzbot found the following issue on:
HEAD commit: bbed346d5a96 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=157dc905880000
kernel config: https://syzkaller.appspot.com/x/.config?x=3a4a45d2d827c1e
dashboard link: https://syzkaller.appspot.com/bug?extid=52bf723c703aa9b88640
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=17179651880000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=10cc5d91880000
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/e8e91bc79312/disk-bbed346d.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/c1cb3fb3b77e/vmlinux-bbed346d.xz
mounted in repro: https://storage.googleapis.com/syzbot-assets/3bd548b7efd3/mount_0.gz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+52bf723c703aa9b88640@syzkaller.appspotmail.com
------------[ cut here ]------------
DEBUG_LOCKS_WARN_ON(1)
WARNING: CPU: 1 PID: 3031 at kernel/locking/lockdep.c:231 check_wait_context kernel/locking/lockdep.c:4727 [inline]
WARNING: CPU: 1 PID: 3031 at kernel/locking/lockdep.c:231 __lock_acquire+0x2b0/0x30a4 kernel/locking/lockdep.c:5003
Modules linked in:
CPU: 1 PID: 3031 Comm: syz-executor196 Not tainted 6.0.0-rc7-syzkaller-18095-gbbed346d5a96 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/30/2022
pstate: 604000c5 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : check_wait_context kernel/locking/lockdep.c:4727 [inline]
pc : __lock_acquire+0x2b0/0x30a4 kernel/locking/lockdep.c:5003
lr : hlock_class kernel/locking/lockdep.c:231 [inline]
lr : check_wait_context kernel/locking/lockdep.c:4727 [inline]
lr : __lock_acquire+0x298/0x30a4 kernel/locking/lockdep.c:5003
sp : ffff8000129f3900
x29: ffff8000129f39e0 x28: 0000000000000001 x27: ffff0000c5371aa8
x26: ffff80000cb49def x25: ffff0000c53724d8 x24: 0000000000000000
x23: 0000000000000000 x22: 0000000000000001 x21: 0000000000000000
x20: 0000000000000000 x19: 55f07fe0846faa84 x18: 00000000000003e8
x17: ffff80000bffd6bc x16: ffff80000db49158 x15: ffff0000c5371a80
x14: 0000000000000000 x13: 0000000000000012 x12: ffff80000d5ef920
x11: ff808000081c0d5c x10: ffff80000dd0b198 x9 : 62dca878cb47c300
x8 : 0000000000000000 x7 : 4e5241575f534b43 x6 : ffff80000819545c
x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000
x2 : 0000000000000000 x1 : 0000000100000001 x0 : 0000000000000016
Call trace:
check_wait_context kernel/locking/lockdep.c:4727 [inline]
__lock_acquire+0x2b0/0x30a4 kernel/locking/lockdep.c:5003
lock_acquire+0x100/0x1f8 kernel/locking/lockdep.c:5666
__raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
_raw_spin_lock+0x54/0x6c kernel/locking/spinlock.c:154
spin_lock include/linux/spinlock.h:349 [inline]
nilfs_palloc_clear_cache fs/nilfs2/alloc.c:848 [inline]
nilfs_palloc_destroy_cache+0x2c/0xb8 fs/nilfs2/alloc.c:860
nilfs_mdt_clear+0x34/0x70 fs/nilfs2/mdt.c:478
nilfs_clear_inode+0x64/0x140 fs/nilfs2/inode.c:886
nilfs_evict_inode+0x68/0x1cc fs/nilfs2/inode.c:908
evict+0xec/0x334 fs/inode.c:665
iput_final fs/inode.c:1748 [inline]
iput+0x2c4/0x324 fs/inode.c:1774
nilfs_put_super+0x6c/0x9c fs/nilfs2/super.c:476
generic_shutdown_super+0x8c/0x190 fs/super.c:491
kill_block_super+0x30/0x78 fs/super.c:1427
deactivate_locked_super+0x70/0xe8 fs/super.c:332
deactivate_super+0xd0/0xd4 fs/super.c:363
cleanup_mnt+0x1f8/0x234 fs/namespace.c:1186
__cleanup_mnt+0x20/0x30 fs/namespace.c:1193
task_work_run+0xc4/0x14c kernel/task_work.c:177
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
do_notify_resume+0x174/0x1f0 arch/arm64/kernel/signal.c:1127
prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline]
exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline]
el0_svc+0x9c/0x150 arch/arm64/kernel/entry-common.c:637
el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:654
el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581
irq event stamp: 356107
hardirqs last enabled at (356107): [<ffff80000bfc8a34>] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:159 [inline]
hardirqs last enabled at (356107): [<ffff80000bfc8a34>] _raw_spin_unlock_irq+0x3c/0x70 kernel/locking/spinlock.c:202
hardirqs last disabled at (356106): [<ffff80000bfc8834>] __raw_spin_lock_irq include/linux/spinlock_api_smp.h:117 [inline]
hardirqs last disabled at (356106): [<ffff80000bfc8834>] _raw_spin_lock_irq+0x34/0x9c kernel/locking/spinlock.c:170
softirqs last enabled at (355348): [<ffff80000801c33c>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32
softirqs last disabled at (355346): [<ffff80000801c308>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19
---[ end trace 0000000000000000 ]---
Unable to handle kernel NULL pointer dereference at virtual address 00000000000000b8
Mem abort info:
ESR = 0x0000000096000004
EC = 0x25: DABT (current EL), IL = 32 bits
SET = 0, FnV = 0
EA = 0, S1PTW = 0
FSC = 0x04: level 0 translation fault
Data abort info:
ISV = 0, ISS = 0x00000004
CM = 0, WnR = 0
user pgtable: 4k pages, 48-bit VAs, pgdp=000000010ae77000
[00000000000000b8] pgd=0000000000000000, p4d=0000000000000000
Internal error: Oops: 0000000096000004 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 3031 Comm: syz-executor196 Tainted: G W 6.0.0-rc7-syzkaller-18095-gbbed346d5a96 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/30/2022
pstate: 604000c5 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : check_wait_context kernel/locking/lockdep.c:4727 [inline]
pc : __lock_acquire+0x2d0/0x30a4 kernel/locking/lockdep.c:5003
lr : hlock_class kernel/locking/lockdep.c:231 [inline]
lr : check_wait_context kernel/locking/lockdep.c:4727 [inline]
lr : __lock_acquire+0x298/0x30a4 kernel/locking/lockdep.c:5003
sp : ffff8000129f3900
x29: ffff8000129f39e0 x28: 0000000000000001 x27: ffff0000c5371aa8
x26: ffff80000cb49def x25: ffff0000c53724d8 x24: 0000000000000000
x23: 0000000000000000 x22: 0000000000000001 x21: 0000000000000000
x20: 0000000000000000 x19: 55f07fe0846faa84 x18: 00000000000003e8
x17: ffff80000bffd6bc x16: ffff80000db49158 x15: ffff0000c5371a80
x14: 0000000000000000 x13: 0000000000000012 x12: ffff80000d5ef920
x11: ff808000081c0d5c x10: ffff80000dd0b198 x9 : 0000000000040a84
x8 : 0000000000000000 x7 : 4e5241575f534b43 x6 : ffff80000819545c
x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000
x2 : 0000000000000000 x1 : 0000000100000001 x0 : 0000000000000016
Call trace:
hlock_class kernel/locking/lockdep.c:222 [inline]
check_wait_context kernel/locking/lockdep.c:4728 [inline]
__lock_acquire+0x2d0/0x30a4 kernel/locking/lockdep.c:5003
lock_acquire+0x100/0x1f8 kernel/locking/lockdep.c:5666
__raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
_raw_spin_lock+0x54/0x6c kernel/locking/spinlock.c:154
spin_lock include/linux/spinlock.h:349 [inline]
nilfs_palloc_clear_cache fs/nilfs2/alloc.c:848 [inline]
nilfs_palloc_destroy_cache+0x2c/0xb8 fs/nilfs2/alloc.c:860
nilfs_mdt_clear+0x34/0x70 fs/nilfs2/mdt.c:478
nilfs_clear_inode+0x64/0x140 fs/nilfs2/inode.c:886
nilfs_evict_inode+0x68/0x1cc fs/nilfs2/inode.c:908
evict+0xec/0x334 fs/inode.c:665
iput_final fs/inode.c:1748 [inline]
iput+0x2c4/0x324 fs/inode.c:1774
nilfs_put_super+0x6c/0x9c fs/nilfs2/super.c:476
generic_shutdown_super+0x8c/0x190 fs/super.c:491
kill_block_super+0x30/0x78 fs/super.c:1427
deactivate_locked_super+0x70/0xe8 fs/super.c:332
deactivate_super+0xd0/0xd4 fs/super.c:363
cleanup_mnt+0x1f8/0x234 fs/namespace.c:1186
__cleanup_mnt+0x20/0x30 fs/namespace.c:1193
task_work_run+0xc4/0x14c kernel/task_work.c:177
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
do_notify_resume+0x174/0x1f0 arch/arm64/kernel/signal.c:1127
prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline]
exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline]
el0_svc+0x9c/0x150 arch/arm64/kernel/entry-common.c:637
el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:654
el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581
Code: b002db8a 91056210 9106614a b9400329 (3942e114)
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
0: b002db8a adrp x10, 0x5b71000
4: 91056210 add x16, x16, #0x158
8: 9106614a add x10, x10, #0x198
c: b9400329 ldr w9, [x25]
* 10: 3942e114 ldrb w20, [x8, #184] <-- trapping instruction
---
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.
syzbot can test patches for this issue, for details see:
https://goo.gl/tpsmEJ#testing-patches
next reply other threads:[~2022-11-06 17:02 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-06 17:02 syzbot [this message]
2022-11-06 17:02 ` [syzbot] WARNING: locking bug in nilfs_palloc_destroy_cache syzbot
[not found] ` <000000000000859fca05ecd04647-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2022-11-06 23:08 ` Ryusuke Konishi
2022-11-06 23:08 ` Ryusuke Konishi
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=000000000000859fca05ecd04647@google.com \
--to=syzbot+52bf723c703aa9b88640-pl5pbv+gp7p466ipttivnc23woclnbcfal8byrjmmd8@public.gmane.org \
--cc=konishi.ryusuke-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org \
--cc=linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
--cc=linux-nilfs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
--cc=syzkaller-bugs-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org \
/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.