------------[ cut here ]------------
DEBUG_RWSEMS_WARN_ON((rwsem_owner(sem) != current) && !rwsem_test_oflags(sem, RWSEM_NONSPINNABLE)): count = 0x0, magic = 0xffff8880547dad80, owner = 0x0, curr 0xffff888034913d80, list not empty
WARNING: kernel/locking/rwsem.c:1411 at __up_write kernel/locking/rwsem.c:1410 [inline], CPU#0: syz.5.389/7261
WARNING: kernel/locking/rwsem.c:1411 at up_write+0x2d4/0x410 kernel/locking/rwsem.c:1682, CPU#0: syz.5.389/7261
Modules linked in:
CPU: 0 UID: 0 PID: 7261 Comm: syz.5.389 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
RIP: 0010:__up_write kernel/locking/rwsem.c:1410 [inline]
RIP: 0010:up_write+0x384/0x410 kernel/locking/rwsem.c:1682
Code: cc 8b 49 c7 c2 a0 f0 cc 8b 4c 0f 44 d0 48 8b 7c 24 08 48 c7 c6 40 f3 cc 8b 48 8b 14 24 4c 89 f1 4d 89 e0 4c 8b 4c 24 10 41 52 <67> 48 0f b9 3a 48 83 c4 08 e8 ae 50 0b 03 e9 6b fd ff ff 48 c7 c1
RSP: 0018:ffffc90004ce7a40 EFLAGS: 00010246
RAX: ffffffff8bccf0c0 RBX: ffff8880547dad80 RCX: ffff8880547dad80
RDX: 0000000000000000 RSI: ffffffff8bccf340 RDI: ffffffff903564b0
RBP: ffff8880547dadd8 R08: 0000000000000000 R09: ffff888034913d80
R10: ffffffff8bccf0c0 R11: ffffed100a8fb5b2 R12: 0000000000000000
R13: dffffc0000000000 R14: ffff8880547dad80 R15: 1ffff1100a8fb5b1
FS:  00007fe08cfaa6c0(0000) GS:ffff888125245000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b33920ff8 CR3: 00000000338f7000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 inode_unlock include/linux/fs.h:1039 [inline]
 vfs_setxattr+0x172/0x360 fs/xattr.c:341
 do_setxattr fs/xattr.c:654 [inline]
 filename_setxattr+0x296/0x630 fs/xattr.c:682
 path_setxattrat+0x3eb/0x440 fs/xattr.c:726
 __do_sys_setxattr fs/xattr.c:760 [inline]
 __se_sys_setxattr fs/xattr.c:756 [inline]
 __x64_sys_setxattr+0xbc/0xe0 fs/xattr.c:756
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe08c19c819
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fe08cfaa028 EFLAGS: 00000246 ORIG_RAX: 00000000000000bc
RAX: ffffffffffffffda RBX: 00007fe08c416180 RCX: 00007fe08c19c819
RDX: 0000000000000000 RSI: 0000200000000140 RDI: 0000200000000080
RBP: 00007fe08c232c91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe08c416218 R14: 00007fe08c416180 R15: 00007fff40b95568
 </TASK>
----------------
Code disassembly (best guess):
   0:	cc                   	int3
   1:	8b 49 c7             	mov    -0x39(%rcx),%ecx
   4:	c2 a0 f0             	ret    $0xf0a0
   7:	cc                   	int3
   8:	8b 4c 0f 44          	mov    0x44(%rdi,%rcx,1),%ecx
   c:	d0 48 8b             	rorb   $1,-0x75(%rax)
   f:	7c 24                	jl     0x35
  11:	08 48 c7             	or     %cl,-0x39(%rax)
  14:	c6 40 f3 cc          	movb   $0xcc,-0xd(%rax)
  18:	8b 48 8b             	mov    -0x75(%rax),%ecx
  1b:	14 24                	adc    $0x24,%al
  1d:	4c 89 f1             	mov    %r14,%rcx
  20:	4d 89 e0             	mov    %r12,%r8
  23:	4c 8b 4c 24 10       	mov    0x10(%rsp),%r9
  28:	41 52                	push   %r10
* 2a:	67 48 0f b9 3a       	ud1    (%edx),%rdi <-- trapping instruction
  2f:	48 83 c4 08          	add    $0x8,%rsp
  33:	e8 ae 50 0b 03       	call   0x30b50e6
  38:	e9 6b fd ff ff       	jmp    0xfffffda8
  3d:	48                   	rex.W
  3e:	c7                   	.byte 0xc7
  3f:	c1                   	.byte 0xc1