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DEBUG_RWSEMS_WARN_ON((rwsem_owner(sem) != current) && !rwsem_test_oflags(sem, RWSEM_NONSPINNABLE)): count = 0x0, magic = 0xffff88801f879118, owner = 0x0, curr 0xffff88801269ca80, list not empty
WARNING: kernel/locking/rwsem.c:1413 at __up_write kernel/locking/rwsem.c:1412 [inline], CPU#0: syz.0.0/5328
WARNING: kernel/locking/rwsem.c:1413 at up_write+0x35c/0x4a0 kernel/locking/rwsem.c:1688, CPU#0: syz.0.0/5328
Modules linked in:
CPU: 0 UID: 0 PID: 5328 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: ed 8b 49 c7 c2 40 03 ed 8b 4c 0f 44 d0 48 8b 7c 24 10 48 c7 c6 e0 05 ed 8b 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 b3 4e 2f 03 e9 d6 fc ff ff 48 c7 c1
RSP: 0018:ffffc9000e7af9e8 EFLAGS: 00010246
RAX: ffffffff8bed0360 RBX: ffff88801f879118 RCX: ffff88801f879118
RDX: 0000000000000000 RSI: ffffffff8bed05e0 RDI: ffffffff905b1b70
RBP: dffffc0000000000 R08: 0000000000000000 R09: ffff88801269ca80
R10: ffffffff8bed0360 R11: ffffed1003f0f225 R12: 0000000000000000
R13: ffff88801f879120 R14: ffff88801f879170 R15: ffff88801269ca80
FS:  00007f442b69c6c0(0000) GS:ffff88808c54e000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fdbb2c4e000 CR3: 0000000012c81000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 inode_unlock include/linux/fs.h:1034 [inline]
 open_last_lookups fs/namei.c:4616 [inline]
 path_openat+0x185a/0x3830 fs/namei.c:4860
 do_file_open+0x23e/0x4a0 fs/namei.c:4892
 do_sys_openat2+0x115/0x200 fs/open.c:1368
 do_sys_open fs/open.c:1374 [inline]
 __do_sys_open fs/open.c:1382 [inline]
 __se_sys_open fs/open.c:1378 [inline]
 __x64_sys_open+0x11e/0x150 fs/open.c:1378
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f442a79de59
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:00007f442b69bfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007f442aa26090 RCX: 00007f442a79de59
RDX: 0000000000000005 RSI: 0000000000084242 RDI: 0000200000000040
RBP: 00007f442a833e6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f442aa26128 R14: 00007f442aa26090 R15: 00007ffd30324a98
 </TASK>
----------------
Code disassembly (best guess), 2 bytes skipped:
   0:	49 c7 c2 40 03 ed 8b 	mov    $0xffffffff8bed0340,%r10
   7:	4c 0f 44 d0          	cmove  %rax,%r10
   b:	48 8b 7c 24 10       	mov    0x10(%rsp),%rdi
  10:	48 c7 c6 e0 05 ed 8b 	mov    $0xffffffff8bed05e0,%rsi
  17:	48 8b 14 24          	mov    (%rsp),%rdx
  1b:	48 8b 4c 24 08       	mov    0x8(%rsp),%rcx
  20:	4d 89 e0             	mov    %r12,%r8
  23:	4d 89 f9             	mov    %r15,%r9
  26:	41 52                	push   %r10
* 28:	67 48 0f b9 3a       	ud1    (%edx),%rdi <-- trapping instruction
  2d:	48 83 c4 08          	add    $0x8,%rsp
  31:	e8 b3 4e 2f 03       	call   0x32f4ee9
  36:	e9 d6 fc ff ff       	jmp    0xfffffd11
  3b:	48                   	rex.W
  3c:	c7                   	.byte 0xc7
  3d:	c1                   	.byte 0xc1