loop0: detected capacity change from 0 to 1024
------------[ cut here ]------------
DEBUG_LOCKS_WARN_ON(lock->magic != lock)
WARNING: CPU: 0 PID: 26858 at kernel/locking/mutex.c:575 __mutex_lock_common+0x18fa/0x2390 kernel/locking/mutex.c:-1
Modules linked in:
CPU: 0 PID: 26858 Comm: syz.0.8341 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:__mutex_lock_common+0x18fa/0x2390 kernel/locking/mutex.c:575
Code: 00 48 8d bc 24 e0 00 00 00 0f 85 47 e8 ff ff 48 c7 c7 20 05 0b 8a 48 c7 c6 60 05 0b 8a e8 0e ad ec ff 48 8d bc 24 e0 00 00 00 <0f> 0b e9 25 e8 ff ff e8 8a ff 4e f7 e9 df fb ff ff 0f 0b e9 2d f0
RSP: 0018:ffffc90003f3f940 EFLAGS: 00010246
RAX: 85278f6840107200 RBX: ffffffff820009f5 RCX: 0000000000080000
RDX: ffffc9000c031000 RSI: 00000000000046d8 RDI: ffffc90003f3fa20
RBP: ffffc90003f3fad0 R08: dffffc0000000000 R09: ffffed1017204f24
R10: ffffed1017204f24 R11: 1ffff11017204f23 R12: 0000000000000000
R13: 0000000000000000 R14: ffff88807a42f828 R15: 0000000000000000
FS:  00007f0ec96d46c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007efc6a7eb4e8 CR3: 000000005f249000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __mutex_lock kernel/locking/mutex.c:729 [inline]
 mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:743
 reiserfs_write_lock+0x75/0xd0 fs/reiserfs/lock.c:27
 reiserfs_lookup+0x137/0x420 fs/reiserfs/namei.c:364
 lookup_one_qstr_excl+0x10e/0x240 fs/namei.c:1563
 do_renameat2+0x444/0xf70 fs/namei.c:4926
 __do_sys_rename fs/namei.c:5031 [inline]
 __se_sys_rename fs/namei.c:5029 [inline]
 __x64_sys_rename+0x82/0x90 fs/namei.c:5029
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f0ecb46cbe9
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:00007f0ec96d4038 EFLAGS: 00000246 ORIG_RAX: 0000000000000052
RAX: ffffffffffffffda RBX: 00007f0ecb6a3fa0 RCX: 00007f0ecb46cbe9
RDX: 0000000000000000 RSI: 0000200000000080 RDI: 0000200000000000
RBP: 00007f0ecb4efe19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f0ecb6a4038 R14: 00007f0ecb6a3fa0 R15: 00007ffd6e347208
 </TASK>