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DEBUG_RWSEMS_WARN_ON((rwsem_owner(sem) != current) && !rwsem_test_oflags(sem, RWSEM_NONSPINNABLE)): count = 0x0, magic = 0xffff888059cbec60, owner = 0x0, curr 0xffff888020c10000, list empty
WARNING: CPU: 1 PID: 4575 at kernel/locking/rwsem.c:1372 __up_write kernel/locking/rwsem.c:1371 [inline]
WARNING: CPU: 1 PID: 4575 at kernel/locking/rwsem.c:1372 up_write+0x4f5/0x580 kernel/locking/rwsem.c:1626
Modules linked in:
CPU: 1 PID: 4575 Comm: syz.3.265 Not tainted 6.1.99-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
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 e0 f5 eb 8a 48 c7 c6 20 f8 eb 8a 48 8b 54 24 28 48 8b 4c 24 18 4d 89 e0 4c 8b 4c 24 30 53 e8 7f d6 e8 ff 48 83 c4 08 <0f> 0b e9 71 fd ff ff 48 c7 c1 28 b6 73 8e 80 e1 07 80 c1 03 38 c1
RSP: 0018:ffffc90004fc7bc0 EFLAGS: 00010296
RAX: aaae58258277c800 RBX: ffffffff8aebf6c0 RCX: 0000000000040000
RDX: ffffc9000b82b000 RSI: 0000000000019392 RDI: 0000000000019393
RBP: ffffc90004fc7c90 R08: ffffffff8152936e R09: fffff520009f8ed9
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: ffff888059cbec60 R14: 1ffff920009f8f80 R15: dffffc0000000000
FS: 00007f89df1de6c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f122f6356b8 CR3: 000000002772b000 CR4: 00000000003526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
inode_unlock include/linux/fs.h:763 [inline]
chown_common+0x5b7/0x900 fs/open.c:738
do_fchownat+0x169/0x240 fs/open.c:767
__do_sys_fchownat fs/open.c:782 [inline]
__se_sys_fchownat fs/open.c:779 [inline]
__x64_sys_fchownat+0xb1/0xc0 fs/open.c:779
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: 0033:0x7f89df375bd9
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:00007f89df1de048 EFLAGS: 00000246 ORIG_RAX: 0000000000000104
RAX: ffffffffffffffda RBX: 00007f89df504038 RCX: 00007f89df375bd9
RDX: 0000000000000000 RSI: 0000000020000480 RDI: ffffffffffffff9c
RBP: 00007f89df3e4e60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f89df504038 R15: 00007ffebe2a69c8
</TASK>