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DEBUG_RWSEMS_WARN_ON((rwsem_owner(sem) != current) && !rwsem_test_oflags(sem, RWSEM_NONSPINNABLE)): count = 0x1, magic = 0xffff88804430c328, owner = 0xffff8880001dcb00, curr 0xffff888000afcb00, list not empty
WARNING: kernel/locking/rwsem.c:1413 at __up_write kernel/locking/rwsem.c:1412 [inline], CPU#0: syz.0.0/5325
WARNING: kernel/locking/rwsem.c:1413 at up_write+0x35c/0x4a0 kernel/locking/rwsem.c:1688, CPU#0: syz.0.0/5325
Modules linked in:
CPU: 0 UID: 0 PID: 5325 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:__up_write kernel/locking/rwsem.c:1412 [inline]
RIP: 0010:up_write+0x40f/0x4a0 kernel/locking/rwsem.c:1688
Code: 0d 8c 49 c7 c2 60 1c 0d 8c 4c 0f 44 d0 48 8b 7c 24 10 48 c7 c6 00 1f 0d 8c 48 8b 14 24 48 8b 4c 24 08 4d 89 e0 4d 89 f9 41 52 <67> 48 0f b9 3a 48 83 c4 08 e8 73 de 39 03 e9 d6 fc ff ff 48 c7 c1
RSP: 0000:ffffc9000f507940 EFLAGS: 00010246
RAX: ffffffff8c0d1c80 RBX: ffff88804430c328 RCX: ffff88804430c328
RDX: 0000000000000001 RSI: ffffffff8c0d1f00 RDI: ffffffff907d75f0
RBP: dffffc0000000000 R08: ffff8880001dcb00 R09: ffff888000afcb00
R10: ffffffff8c0d1c80 R11: ffffed1008861867 R12: ffff8880001dcb00
R13: ffff88804430c330 R14: ffff88804430c380 R15: ffff888000afcb00
FS:  00007f36482bc6c0(0000) GS:ffff88808c2ca000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f363b2a4001 CR3: 0000000012132000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 inode_unlock include/linux/fs.h:1034 [inline]
 lookup_open+0x10ab/0x1a40 fs/namei.c:4578
 open_last_lookups fs/namei.c:4767 [inline]
 path_openat+0x677/0x1d60 fs/namei.c:4997
 do_file_open+0x23e/0x4a0 fs/namei.c:5029
 do_sys_openat2+0x115/0x200 fs/open.c:1417
 do_sys_open fs/open.c:1423 [inline]
 __do_sys_openat fs/open.c:1439 [inline]
 __se_sys_openat fs/open.c:1434 [inline]
 __x64_sys_openat+0x138/0x170 fs/open.c:1434
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f364739e159
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:00007f36482bbfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f3647626360 RCX: 00007f364739e159
RDX: 0000000000183042 RSI: 0000200000000080 RDI: ffffffffffffff9c
RBP: 00007f3647435024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000025 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f36476263f8 R14: 00007f3647626360 R15: 00007ffd846e6b38
 </TASK>
----------------
Code disassembly (best guess), 1 bytes skipped:
   0:	8c 49 c7             	mov    %cs,-0x39(%rcx)
   3:	c2 60 1c             	ret    $0x1c60
   6:	0d 8c 4c 0f 44       	or     $0x440f4c8c,%eax
   b:	d0 48 8b             	rorb   $1,-0x75(%rax)
   e:	7c 24                	jl     0x34
  10:	10 48 c7             	adc    %cl,-0x39(%rax)
  13:	c6 00 1f             	movb   $0x1f,(%rax)
  16:	0d 8c 48 8b 14       	or     $0x148b488c,%eax
  1b:	24 48                	and    $0x48,%al
  1d:	8b 4c 24 08          	mov    0x8(%rsp),%ecx
  21:	4d 89 e0             	mov    %r12,%r8
  24:	4d 89 f9             	mov    %r15,%r9
  27:	41 52                	push   %r10
* 29:	67 48 0f b9 3a       	ud1    (%edx),%rdi <-- trapping instruction
  2e:	48 83 c4 08          	add    $0x8,%rsp
  32:	e8 73 de 39 03       	call   0x339deaa
  37:	e9 d6 fc ff ff       	jmp    0xfffffd12
  3c:	48                   	rex.W
  3d:	c7                   	.byte 0xc7
  3e:	c1                   	.byte 0xc1