[syzbot] [reiserfs?] WARNING: locking bug in lockref_put_or_lock

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit: 69b41ac87e4a Merge tag 'for-6.2-rc2-tag' of git://git.kern..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=1386ac9a480000
kernel config: https://syzkaller.appspot.com/x/.config?x=9babfdc3dd4772d0
dashboard link: https://syzkaller.appspot.com/bug?extid=12a2ecec8db1d853fc33
compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10256734480000

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/d3aac1573b20/disk-69b41ac8.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/31f5a860f3b3/vmlinux-69b41ac8.xz
kernel image: https://storage.googleapis.com/syzbot-assets/d4a7091814ba/bzImage-69b41ac8.xz
mounted in repro: https://storage.googleapis.com/syzbot-assets/d2780fe6fae0/mount_0.gz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+12a2ec...@syzkaller.appspotmail.com

REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage.
------------[ cut here ]------------
DEBUG_LOCKS_WARN_ON(1)
WARNING: CPU: 0 PID: 5314 at kernel/locking/lockdep.c:231 check_wait_context kernel/locking/lockdep.c:4729 [inline]
WARNING: CPU: 0 PID: 5314 at kernel/locking/lockdep.c:231 __lock_acquire+0xac2/0x1f60 kernel/locking/lockdep.c:5005
Modules linked in:
CPU: 0 PID: 5314 Comm: syz-executor.5 Not tainted 6.2.0-rc2-syzkaller-00010-g69b41ac87e4a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
RIP: 0010:hlock_class kernel/locking/lockdep.c:231 [inline]
RIP: 0010:check_wait_context kernel/locking/lockdep.c:4729 [inline]
RIP: 0010:__lock_acquire+0xac2/0x1f60 kernel/locking/lockdep.c:5005
Code: 2b 0d 00 0f 85 2b fa ff ff 31 db 48 c7 c7 80 ba ed 8a 48 c7 c6 20 bd ed 8a 31 c0 e8 08 b0 e7 ff 48 ba 00 00 00 00 00 fc ff df <0f> 0b e9 25 fa ff ff e8 12 f2 cf 02 85 c0 0f 84 b1 06 00 00 48 c7
RSP: 0018:ffffc900058a7628 EFLAGS: 00010046
RAX: 3bc84842428cc400 RBX: 0000000000000000 RCX: ffff888027ef0000
RDX: dffffc0000000000 RSI: 0000000080000001 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff816f2c9d R09: ffffed1017304f5b
R10: ffffed1017304f5b R11: 1ffff11017304f5a R12: 0000000000040000
R13: ffff888027ef0000 R14: 0000000000041770 R15: ffff888027ef0a80
FS: 00007f1c2429f700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000280 CR3: 000000002195c000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
lock_acquire+0x182/0x3c0 kernel/locking/lockdep.c:5668
__raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
_raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:154
spin_lock include/linux/spinlock.h:350 [inline]
lockref_put_or_lock+0x22/0xb0 lib/lockref.c:148
fast_dput fs/dcache.c:775 [inline]
dput+0x20e/0x410 fs/dcache.c:900
path_put fs/namei.c:558 [inline]
terminate_walk+0x1b1/0x5d0 fs/namei.c:680
path_openat+0x24c9/0x2dd0 fs/namei.c:3715
do_filp_open+0x264/0x4f0 fs/namei.c:3741
do_sys_openat2+0x124/0x4e0 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]
__x64_sys_openat+0x243/0x290 fs/open.c:1337
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f1c2348c0a9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f1c2429f168 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f1c235abf80 RCX: 00007f1c2348c0a9


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[syzbot]

Auto-closing this bug as obsolete.
No recent activity, existing reproducers are no longer triggering the issue.