syzbot

DEBUG_RWSEMS_WARN_ON((rwsem_owner(sem) != current) && !rwsem_test_oflags(sem, RWSEM_NONSPINNABLE)): count = 0x0, magic = 0xffff88807d179950, owner = 0x0, curr 0xffff888022031e00, list empty
WARNING: CPU: 0 PID: 6752 at kernel/locking/rwsem.c:1370 __up_write kernel/locking/rwsem.c:1369 [inline]
WARNING: CPU: 0 PID: 6752 at kernel/locking/rwsem.c:1370 up_write+0x502/0x590 kernel/locking/rwsem.c:1632
Modules linked in:
CPU: 0 PID: 6752 Comm: syz-executor.2 Not tainted 6.9.0-rc6-syzkaller-00290-gb9158815de52 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:__up_write kernel/locking/rwsem.c:1369 [inline]
RIP: 0010:up_write+0x502/0x590 kernel/locking/rwsem.c:1632
Code: c7 c7 20 ac ca 8b 48 c7 c6 a0 ae ca 8b 48 8b 54 24 28 48 8b 4c 24 18 4d 89 e0 4c 8b 4c 24 30 53 e8 83 b3 e6 ff 48 83 c4 08 90 <0f> 0b 90 90 e9 6a fd ff ff 48 c7 c1 30 fe a7 8f 80 e1 07 80 c1 03
RSP: 0018:ffffc9000578fd20 EFLAGS: 00010292
RAX: 61494f9d8dfc6300 RBX: ffffffff8bcaad00 RCX: 0000000000040000
RDX: ffffc90005522000 RSI: 000000000002361f RDI: 0000000000023620
RBP: ffffc9000578fdf0 R08: ffffffff81588e32 R09: 1ffffffff25dfcbe
R10: dffffc0000000000 R11: fffffbfff25dfcbf R12: 0000000000000000
R13: ffff88807d179950 R14: 1ffff92000af1fac R15: dffffc0000000000
FS:  00007f6ad415b6c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b33a27000 CR3: 000000001f55c000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 inode_unlock include/linux/fs.h:800 [inline]
 done_path_create fs/namei.c:3943 [inline]
 do_mknodat+0x4c5/0x5b0 fs/namei.c:4066
 __do_sys_mknod fs/namei.c:4084 [inline]
 __se_sys_mknod fs/namei.c:4082 [inline]
 __x64_sys_mknod+0x8e/0xa0 fs/namei.c:4082
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f6ad347dca9
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:00007f6ad415b0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000085
RAX: ffffffffffffffda RBX: 00007f6ad35ac050 RCX: 00007f6ad347dca9
RDX: 0000000000000705 RSI: 0000000000002000 RDI: 0000000020000000
RBP: 00007f6ad34c947e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f6ad35ac050 R15: 00007fff8f8479e8
 </TASK>