syzbot

DEBUG_RWSEMS_WARN_ON((rwsem_owner(sem) != current) && !rwsem_test_oflags(sem, RWSEM_NONSPINNABLE)): count = 0x0, magic = 0xffff888055761bc0, owner = 0x0, curr 0xffff888019ab1dc0, list empty
WARNING: CPU: 1 PID: 7466 at kernel/locking/rwsem.c:1372 __up_write kernel/locking/rwsem.c:1371 [inline]
WARNING: CPU: 1 PID: 7466 at kernel/locking/rwsem.c:1372 up_write+0x3a1/0x420 kernel/locking/rwsem.c:1626
Modules linked in:
CPU: 1 PID: 7466 Comm: syz.2.907 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:__up_write kernel/locking/rwsem.c:1371 [inline]
RIP: 0010:up_write+0x3a1/0x420 kernel/locking/rwsem.c:1626
Code: 44 d0 48 c7 c7 80 f9 6b 8a 48 c7 c6 c0 fb 6b 8a 48 8b 14 24 4c 89 f1 4d 89 e0 4c 8b 4c 24 08 41 52 e8 b3 83 ea ff 48 83 c4 08 <0f> 0b e9 6b fd ff ff 48 c7 c1 e8 42 ff 8d 80 e1 07 80 c1 03 38 c1
RSP: 0018:ffffc9001c027df0 EFLAGS: 00010296
RAX: 315eaa3b2fd20a00 RBX: ffff888055761bc0 RCX: 0000000000080000
RDX: ffffc9000f039000 RSI: 0000000000021195 RDI: 0000000000021196
RBP: dffffc0000000000 R08: dffffc0000000000 R09: fffffbfff211907f
R10: fffffbfff211907f R11: 1ffffffff211907e R12: 0000000000000000
R13: ffff888055761c18 R14: ffff888055761bc0 R15: 1ffff1100aaec379
FS:  00007fc14a03f6c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c2ee153 CR3: 00000000737f8000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 inode_unlock include/linux/fs.h:763 [inline]
 done_path_create fs/namei.c:3935 [inline]
 do_mkdirat+0x212/0x430 fs/namei.c:4142
 __do_sys_mkdirat fs/namei.c:4154 [inline]
 __se_sys_mkdirat fs/namei.c:4152 [inline]
 __x64_sys_mkdirat+0x85/0x90 fs/namei.c:4152
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fc14918f749
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:00007fc14a03f038 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 00007fc1493e6090 RCX: 00007fc14918f749
RDX: 0000000000000008 RSI: 0000200000000400 RDI: 0000000000000004
RBP: 00007fc149213f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fc1493e6128 R14: 00007fc1493e6090 R15: 00007fff5ad8ede8
 </TASK>