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DEBUG_RWSEMS_WARN_ON((rwsem_owner(sem) != current) && !rwsem_test_oflags(sem, RWSEM_NONSPINNABLE)): count = 0x0, magic = 0xffff888043bb0e38, owner = 0x0, curr 0xffff88803307a440, list empty
WARNING: CPU: 0 PID: 5330 at kernel/locking/rwsem.c:1368 __up_write kernel/locking/rwsem.c:1367 [inline]
WARNING: CPU: 0 PID: 5330 at kernel/locking/rwsem.c:1368 up_write+0x3a2/0x420 kernel/locking/rwsem.c:1630
Modules linked in:
CPU: 0 UID: 0 PID: 5330 Comm: syz.0.0 Not tainted 6.16.0-rc1-syzkaller-00239-g08215f5486ec #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_write kernel/locking/rwsem.c:1367 [inline]
RIP: 0010:up_write+0x3a2/0x420 kernel/locking/rwsem.c:1630
Code: d0 48 c7 c7 c0 f0 8a 8b 48 c7 c6 e0 f2 8a 8b 48 8b 14 24 4c 89 f1 4d 89 e0 4c 8b 4c 24 08 41 52 e8 b3 3b e6 ff 48 83 c4 08 90 <0f> 0b 90 90 e9 6d fd ff ff 48 c7 c1 34 3e a1 8f 80 e1 07 80 c1 03
RSP: 0018:ffffc9000fe17c30 EFLAGS: 00010296
RAX: 9535cdb1d5389f00 RBX: ffff888043bb0e38 RCX: ffff88803307a440
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002
RBP: dffffc0000000000 R08: ffff88801fc24293 R09: 1ffff11003f84852
R10: dffffc0000000000 R11: ffffed1003f84853 R12: 0000000000000000
R13: ffff888043bb0e90 R14: ffff888043bb0e38 R15: 1ffff110087761c8
FS:  00007f6b337716c0(0000) GS:ffff88808d251000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6b3374ffc8 CR3: 0000000042cdc000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 inode_unlock include/linux/fs.h:877 [inline]
 chown_common+0x418/0x5c0 fs/open.c:792
 do_fchownat+0x161/0x270 fs/open.c:821
 __do_sys_fchownat fs/open.c:836 [inline]
 __se_sys_fchownat fs/open.c:833 [inline]
 __x64_sys_fchownat+0xb5/0xd0 fs/open.c:833
 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: 0033:0x7f6b3298e929
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:00007f6b33771038 EFLAGS: 00000246 ORIG_RAX: 0000000000000104
RAX: ffffffffffffffda RBX: 00007f6b32bb6080 RCX: 00007f6b3298e929
RDX: 0000000000000000 RSI: 0000200000000000 RDI: ffffffffffffff9c
RBP: 00007f6b32a10b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f6b32bb6080 R15: 00007ffe1116e538
 </TASK>