------------[ cut here ]------------
DEBUG_RWSEMS_WARN_ON(!is_rwsem_reader_owned(sem)): count = 0x0, magic = 0xffff888078f91508, owner = 0x0, curr 0xffff888065315a00, list empty
WARNING: CPU: 0 PID: 18473 at kernel/locking/rwsem.c:1343 __up_read+0x617/0x6b0 kernel/locking/rwsem.c:1343
Modules linked in:
CPU: 0 PID: 18473 Comm: syz-executor.0 Not tainted 6.9.0-rc7-next-20240509-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:__up_read+0x617/0x6b0 kernel/locking/rwsem.c:1343
Code: 8b 48 0f 44 c1 48 c7 c7 40 a8 ca 8b 48 c7 c6 e0 a8 ca 8b 4c 89 fa 4c 89 f1 49 89 d8 4d 89 e9 50 e8 5e 96 e6 ff 48 83 c4 08 90 <0f> 0b 90 90 48 bb 00 00 00 00 00 fc ff df 4c 8b 2c 24 e9 37 fb ff
RSP: 0018:ffffc90005037a40 EFLAGS: 00010292
RAX: e93fa804e55f3d00 RBX: 0000000000000000 RCX: 0000000000040000
RDX: ffffc9000bdfa000 RSI: 0000000000010809 RDI: 000000000001080a
RBP: ffffc90005037af8 R08: ffffffff815847d2 R09: fffffbfff1c3996c
R10: dffffc0000000000 R11: fffffbfff1c3996c R12: ffff888078f91560
R13: ffff888065315a00 R14: ffff888078f91508 R15: 0000000000000000
FS:  00007f6551fde6c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2c527000 CR3: 0000000022e24000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 inode_unlock_shared include/linux/fs.h:806 [inline]
 lookup_slow+0x5e/0x70 fs/namei.c:1710
 walk_component+0x2e1/0x410 fs/namei.c:2004
 lookup_last fs/namei.c:2469 [inline]
 path_lookupat+0x16f/0x450 fs/namei.c:2493
 filename_lookup+0x256/0x610 fs/namei.c:2522
 user_path_at_empty+0x42/0x60 fs/namei.c:2929
 user_path_at include/linux/namei.h:58 [inline]
 do_fchownat+0xf0/0x250 fs/open.c:815
 __do_sys_chown fs/open.c:841 [inline]
 __se_sys_chown fs/open.c:839 [inline]
 __x64_sys_chown+0x82/0x90 fs/open.c:839
 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: 0033:0x7f655247dd69
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:00007f6551fde0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000005c
RAX: ffffffffffffffda RBX: 00007f65525ac120 RCX: 00007f655247dd69
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000000
RBP: 00007f65524ca49e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f65525ac120 R15: 00007ffe5118f3b8
 </TASK>