------------[ cut here ]------------
DEBUG_LOCKS_WARN_ON(lock->magic != lock)
WARNING: CPU: 1 PID: 19121 at kernel/locking/mutex.c:582 __mutex_lock_common kernel/locking/mutex.c:582 [inline]
WARNING: CPU: 1 PID: 19121 at kernel/locking/mutex.c:582 __mutex_lock+0xc39/0xd60 kernel/locking/mutex.c:747
Modules linked in:
CPU: 1 PID: 19121 Comm: syz-executor.3 Not tainted 6.6.0-rc2-syzkaller-00337-gd90b0276af8f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023
RIP: 0010:__mutex_lock_common kernel/locking/mutex.c:582 [inline]
RIP: 0010:__mutex_lock+0xc39/0xd60 kernel/locking/mutex.c:747
Code: 04 20 84 c0 0f 85 13 01 00 00 83 3d 40 20 c4 03 00 0f 85 e2 f4 ff ff 48 c7 c7 a0 8f 0a 8b 48 c7 c6 40 90 0a 8b e8 07 a7 7d f6 <0f> 0b e9 c8 f4 ff ff 0f 0b e9 d8 f8 ff ff 0f 0b e9 55 f5 ff ff 48
RSP: 0018:ffffc90009ccf680 EFLAGS: 00010246
RAX: 505fe607d5c4dd00 RBX: 0000000000000000 RCX: 0000000000040000
RDX: ffffc9000b155000 RSI: 0000000000001a24 RDI: 0000000000001a25
RBP: ffffc90009ccf7e0 R08: ffffffff81543302 R09: 1ffff1101730516a
R10: dffffc0000000000 R11: ffffed101730516b R12: dffffc0000000000
R13: ffff88807d752a28 R14: 0000000000000000 R15: dffffc0000000000
FS:  00007f004d7fe6c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f00463ddd58 CR3: 000000007a05a000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 reiserfs_write_lock+0x7a/0xd0 fs/reiserfs/lock.c:27
 reiserfs_lookup+0x162/0x580 fs/reiserfs/namei.c:364
 __lookup_slow+0x282/0x3e0 fs/namei.c:1693
 lookup_slow+0x53/0x70 fs/namei.c:1710
 walk_component+0x2d0/0x400 fs/namei.c:2001
 lookup_last fs/namei.c:2458 [inline]
 path_lookupat+0x16f/0x450 fs/namei.c:2482
 filename_lookup+0x255/0x610 fs/namei.c:2511
 user_path_at_empty+0x44/0x180 fs/namei.c:2910
 user_path_at include/linux/namei.h:57 [inline]
 do_mount fs/namespace.c:3672 [inline]
 __do_sys_mount fs/namespace.c:3884 [inline]
 __se_sys_mount+0x29a/0x3c0 fs/namespace.c:3861
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f004ec7cae9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f004d7fe0c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f004ed9bf80 RCX: 00007f004ec7cae9
RDX: 0000000020000000 RSI: 0000000020000180 RDI: 0000000000000000
RBP: 00007f004ecc847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f004ed9bf80 R15: 00007ffe59add478
 </TASK>