------------[ cut here ]------------
DEBUG_RWSEMS_WARN_ON(tmp < 0): count = 0xffffffffffffff00, magic = 0xffff888052cdd4e8, owner = 0x0, curr 0xffff88801f2b2440, list empty
WARNING: CPU: 0 PID: 5356 at kernel/locking/rwsem.c:1346 __up_read+0x3ea/0x680 kernel/locking/rwsem.c:1346
Modules linked in:
CPU: 0 UID: 0 PID: 5356 Comm: syz.0.0 Not tainted 6.16.0-rc5-syzkaller-00121-gbc9ff192a6c9 #0 PREEMPT(full)
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:__up_read+0x3ea/0x680 kernel/locking/rwsem.c:1346
Code: d0 48 c7 c7 80 f9 8a 8b 48 c7 c6 80 fb 8a 8b 48 8b 54 24 08 48 8b 0c 24 4d 89 f8 4d 89 f1 41 52 e8 9b 44 e6 ff 48 83 c4 08 90 <0f> 0b 90 90 e9 71 fe ff ff c6 05 a8 05 ee 0d 01 90 48 89 df be 08
RSP: 0018:ffffc9000d597940 EFLAGS: 00010292
RAX: 373c8bb66fdb6f00 RBX: ffff888052cdd4e8 RCX: ffff88801f2b2440
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002
RBP: ffffc9000d5979f8 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffffbfff1bfaa64 R12: ffffffffffffff00
R13: ffff888052cdd540 R14: ffff88801f2b2440 R15: 0000000000000000
FS: 00007f5dcc5ee6c0(0000) GS:ffff88808d21b000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5dcc5edfc8 CR3: 0000000043ac2000 CR4: 0000000000352ef0
Call Trace:
<TASK>
inode_unlock_shared include/linux/fs.h:894 [inline]
lookup_slow+0x5e/0x70 fs/namei.c:1835
walk_component fs/namei.c:2138 [inline]
link_path_walk+0x935/0xea0 fs/namei.c:2506
path_parentat fs/namei.c:2710 [inline]
__filename_parentat+0x246/0x670 fs/namei.c:2734
filename_parentat fs/namei.c:2752 [inline]
filename_create+0xcf/0x470 fs/namei.c:4129
do_mkdirat+0xa0/0x590 fs/namei.c:4400
__do_sys_mkdirat fs/namei.c:4425 [inline]
__se_sys_mkdirat fs/namei.c:4423 [inline]
__x64_sys_mkdirat+0x87/0xa0 fs/namei.c:4423
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5dcb78e929
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:00007f5dcc5ee038 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 00007f5dcb9b6160 RCX: 00007f5dcb78e929
RDX: 0000000000000000 RSI: 0000200000000280 RDI: ffffffffffffff9c
RBP: 00007f5dcb810b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f5dcb9b6160 R15: 00007ffef622f718
</TASK>