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DEBUG_RWSEMS_WARN_ON((rwsem_owner(sem) != current) && !rwsem_test_oflags(sem, RWSEM_NONSPINNABLE)): count = 0x0, magic = 0xffff88805b044a68, owner = 0x0, curr 0xffff888026c9da00, list empty
WARNING: CPU: 1 PID: 6198 at kernel/locking/rwsem.c:1368 __up_write kernel/locking/rwsem.c:1367 [inline]
WARNING: CPU: 1 PID: 6198 at kernel/locking/rwsem.c:1368 up_write+0x502/0x590 kernel/locking/rwsem.c:1630
Modules linked in:
CPU: 1 UID: 0 PID: 6198 Comm: syz.4.221 Not tainted 6.12.0-rc3-syzkaller-00013-geca631b8fe80 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:__up_write kernel/locking/rwsem.c:1367 [inline]
RIP: 0010:up_write+0x502/0x590 kernel/locking/rwsem.c:1630
Code: c7 c7 00 be 0a 8c 48 c7 c6 80 c0 0a 8c 48 8b 54 24 28 48 8b 4c 24 18 4d 89 e0 4c 8b 4c 24 30 53 e8 d3 42 e6 ff 48 83 c4 08 90 <0f> 0b 90 90 e9 6a fd ff ff 48 c7 c1 40 29 1d 90 80 e1 07 80 c1 03
RSP: 0018:ffffc900036efba0 EFLAGS: 00010296
RAX: a9fbe9b79e2a9300 RBX: ffffffff8c0abee0 RCX: 0000000000040000
RDX: ffffc9000c334000 RSI: 000000000000a8b6 RDI: 000000000000a8b7
RBP: ffffc900036efc70 R08: ffffffff8155e402 R09: fffffbfff1cf9fd8
R10: dffffc0000000000 R11: fffffbfff1cf9fd8 R12: 0000000000000000
R13: ffff88805b044a68 R14: 1ffff920006ddf7c R15: dffffc0000000000
FS:  00007f2ff3fde6c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9da680f378 CR3: 000000007a792000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 inode_unlock include/linux/fs.h:820 [inline]
 chown_common+0x50e/0x850 fs/open.c:795
 do_fchownat+0x16a/0x240 fs/open.c:824
 __do_sys_lchown fs/open.c:849 [inline]
 __se_sys_lchown fs/open.c:847 [inline]
 __x64_sys_lchown+0x85/0xa0 fs/open.c:847
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2ff457dff9
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:00007f2ff3fde038 EFLAGS: 00000246 ORIG_RAX: 000000000000005e
RAX: ffffffffffffffda RBX: 00007f2ff4736130 RCX: 00007f2ff457dff9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000200014c0
RBP: 00007f2ff45f0296 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f2ff4736130 R15: 00007ffc53f46aa8
 </TASK>