loop1: detected capacity change from 0 to 32768
------------[ cut here ]------------
DEBUG_LOCKS_WARN_ON(lock->magic != lock)
WARNING: CPU: 0 PID: 5458 at kernel/locking/mutex.c:582 __mutex_lock_common kernel/locking/mutex.c:582 [inline]
WARNING: CPU: 0 PID: 5458 at kernel/locking/mutex.c:582 __mutex_lock+0xb8c/0xcc0 kernel/locking/mutex.c:747
Modules linked in:
CPU: 0 PID: 5458 Comm: syz.1.13869 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:__mutex_lock_common kernel/locking/mutex.c:582 [inline]
RIP: 0010:__mutex_lock+0xb8c/0xcc0 kernel/locking/mutex.c:747
Code: 04 08 84 c0 0f 85 20 01 00 00 83 3d dd 49 d3 03 00 0f 85 81 f5 ff ff 48 c7 c7 80 a7 aa 8a 48 c7 c6 20 a8 aa 8a e8 94 94 d8 f6 <0f> 0b e9 67 f5 ff ff 0f 0b e9 47 f9 ff ff 0f 0b e9 ff f5 ff ff 48
RSP: 0018:ffffc900174c79a0 EFLAGS: 00010246
RAX: aad9148d22f08500 RBX: ffff888031697628 RCX: 0000000000080000
RDX: ffffc9000d34a000 RSI: 0000000000007403 RDI: 0000000000007404
RBP: ffffc900174c7b00 R08: ffff8880b8e28c13 R09: 1ffff110171c5182
R10: dffffc0000000000 R11: ffffed10171c5183 R12: 0000000000000000
R13: 1ffff92002e98f44 R14: dffffc0000000000 R15: 0000000000000000
FS: 00007fbd5cc116c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7a127970d6 CR3: 000000004e6bd000 CR4: 00000000003506f0
Call Trace:
<TASK>
reiserfs_write_lock+0x79/0xd0 fs/reiserfs/lock.c:27
reiserfs_lookup+0x151/0x520 fs/reiserfs/namei.c:364
lookup_one_qstr_excl+0x112/0x250 fs/namei.c:1617
filename_create+0x222/0x460 fs/namei.c:3891
do_mkdirat+0xa1/0x440 fs/namei.c:4136
__do_sys_mkdirat fs/namei.c:4159 [inline]
__se_sys_mkdirat fs/namei.c:4157 [inline]
__x64_sys_mkdirat+0x89/0xa0 fs/namei.c:4157
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fbd5bd8de97
Code: 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 02 01 00 00 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:00007fbd5cc10e68 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 00007fbd5cc10ef0 RCX: 00007fbd5bd8de97
RDX: 00000000000001ff RSI: 0000200000002080 RDI: 00000000ffffff9c
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000002080
R13: 00007fbd5cc10eb0 R14: 0000000000000000 R15: 0000000000000000
</TASK>