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DEBUG_RWSEMS_WARN_ON((rwsem_owner(sem) != current) && !rwsem_test_oflags(sem, RWSEM_NONSPINNABLE)): count = 0x0, magic = 0xffff888069886310, owner = 0x0, curr 0xffff88807cc7bb80, list empty
WARNING: CPU: 0 PID: 4600 at kernel/locking/rwsem.c:1372 __up_write kernel/locking/rwsem.c:1371 [inline]
WARNING: CPU: 0 PID: 4600 at kernel/locking/rwsem.c:1372 up_write+0x4f5/0x580 kernel/locking/rwsem.c:1626
Modules linked in:
CPU: 0 PID: 4600 Comm: syz-executor198 Not tainted 6.1.132-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:__up_write kernel/locking/rwsem.c:1371 [inline]
RIP: 0010:up_write+0x4f5/0x580 kernel/locking/rwsem.c:1626
Code: 48 c7 c7 40 11 0c 8b 48 c7 c6 80 13 0c 8b 48 8b 54 24 28 48 8b 4c 24 18 4d 89 e0 4c 8b 4c 24 30 53 e8 1f ba e8 ff 48 83 c4 08 <0f> 0b e9 71 fd ff ff 48 c7 c1 f8 ea a0 8e 80 e1 07 80 c1 03 38 c1
RSP: 0018:ffffc900044a7c00 EFLAGS: 00010296
RAX: bc53a5c9aaacce00 RBX: ffffffff8b0c1220 RCX: ffff88807cc7bb80
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc900044a7cd0 R08: ffffffff8152c26e R09: fffff52000894ee1
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: ffff888069886310 R14: 1ffff92000894f88 R15: dffffc0000000000
FS:  00007f60461536c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffd010f8b18 CR3: 00000000741f3000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 inode_unlock include/linux/fs.h:763 [inline]
 chmod_common+0x2b4/0x4b0 fs/open.c:609
 do_fchmodat fs/open.c:645 [inline]
 __do_sys_chmod fs/open.c:663 [inline]
 __se_sys_chmod fs/open.c:661 [inline]
 __x64_sys_chmod+0xf4/0x180 fs/open.c:661
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f60461c2bf9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 81 1d 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:00007f6046153218 EFLAGS: 00000246 ORIG_RAX: 000000000000005a
RAX: ffffffffffffffda RBX: 00007f60462636d8 RCX: 00007f60461c2bf9
RDX: 0000000000000000 RSI: 000000000000018e RDI: 0000200000021d00
RBP: 00007f60462636d0 R08: 00007ffd010fa2d7 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f604620f7e0
R13: 0000200000021d00 R14: 0000200000000100 R15: 0000200000000300
 </TASK>