syzbot

DEBUG_RWSEMS_WARN_ON((rwsem_owner(sem) != current) && !rwsem_test_oflags(sem, RWSEM_NONSPINNABLE)): count = 0x0, magic = 0xffff888055532088, owner = 0x0, curr 0xffff88802fc9da00, list empty
WARNING: CPU: 0 PID: 10337 at kernel/locking/rwsem.c:1368 __up_write kernel/locking/rwsem.c:1367 [inline]
WARNING: CPU: 0 PID: 10337 at kernel/locking/rwsem.c:1368 up_write+0x502/0x590 kernel/locking/rwsem.c:1630
Modules linked in:
CPU: 0 UID: 0 PID: 10337 Comm: syz.4.800 Not tainted 6.12.0-syzkaller-09073-g9f16d5e6f220 #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 e0 cb 0a 8c 48 c7 c6 60 ce 0a 8c 48 8b 54 24 28 48 8b 4c 24 18 4d 89 e0 4c 8b 4c 24 30 53 e8 83 29 e6 ff 48 83 c4 08 90 <0f> 0b 90 90 e9 6a fd ff ff 48 c7 c1 c4 72 1e 90 80 e1 07 80 c1 03
RSP: 0018:ffffc9001463f960 EFLAGS: 00010296
RAX: 8d5fce3b6a4d7a00 RBX: ffffffff8c0accc0 RCX: 0000000000080000
RDX: ffffc9000e4a0000 RSI: 000000000000a476 RDI: 000000000000a477
RBP: ffffc9001463fa30 R08: ffffffff815688b2 R09: fffffbfff1cfa8a0
R10: dffffc0000000000 R11: fffffbfff1cfa8a0 R12: 0000000000000000
R13: ffff888055532088 R14: 1ffff920028c7f34 R15: dffffc0000000000
FS:  00007f16795f66c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd4d032df98 CR3: 0000000050d42000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 inode_unlock include/linux/fs.h:823 [inline]
 vfs_setxattr+0x233/0x430 fs/xattr.c:323
 do_setxattr fs/xattr.c:636 [inline]
 filename_setxattr+0x2af/0x430 fs/xattr.c:665
 path_setxattrat+0x440/0x510 fs/xattr.c:713
 __do_sys_lsetxattr fs/xattr.c:754 [inline]
 __se_sys_lsetxattr fs/xattr.c:750 [inline]
 __x64_sys_lsetxattr+0xbf/0xe0 fs/xattr.c:750
 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: 0033:0x7f167b77e819
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:00007f16795f6038 EFLAGS: 00000246 ORIG_RAX: 00000000000000bd
RAX: ffffffffffffffda RBX: 00007f167b936160 RCX: 00007f167b77e819
RDX: 0000000020000240 RSI: 0000000020000140 RDI: 0000000020000040
RBP: 00007f167b7f175e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f167b936160 R15: 00007ffe132b8c98
 </TASK>