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DEBUG_RWSEMS_WARN_ON((rwsem_owner(sem) != current) && !rwsem_test_oflags(sem, RWSEM_NONSPINNABLE)): count = 0x0, magic = 0xffff888076a69148, owner = 0x0, curr 0xffff88802b425dc0, list not empty
WARNING: kernel/locking/rwsem.c:1413 at __up_write kernel/locking/rwsem.c:1412 [inline], CPU#0: syz.1.1894/12996
WARNING: kernel/locking/rwsem.c:1413 at up_write+0x35c/0x4a0 kernel/locking/rwsem.c:1688, CPU#0: syz.1.1894/12996
Modules linked in:
CPU: 0 UID: 0 PID: 12996 Comm: syz.1.1894 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/05/2026
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 1e 0d 8c 4c 0f 44 d0 48 8b 7c 24 10 48 c7 c6 00 21 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 13 e5 38 03 e9 d6 fc ff ff 48 c7 c1
RSP: 0018:ffffc90003cafd80 EFLAGS: 00010246
RAX: ffffffff8c0d1e80 RBX: ffff888076a69148 RCX: ffff888076a69148
RDX: 0000000000000000 RSI: ffffffff8c0d2100 RDI: ffffffff907d8550
RBP: dffffc0000000000 R08: 0000000000000000 R09: ffff88802b425dc0
R10: ffffffff8c0d1e80 R11: ffffed100ed4d22b R12: 0000000000000000
R13: ffff888076a69150 R14: ffff888076a691a0 R15: ffff88802b425dc0
FS:  00007f79d7f8c6c0(0000) GS:ffff888124ccb000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f79d4bf1ff8 CR3: 000000004aeb8000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 inode_unlock include/linux/fs.h:1034 [inline]
 end_dirop fs/namei.c:2955 [inline]
 end_creating include/linux/namei.h:120 [inline]
 end_creating_path fs/namei.c:5132 [inline]
 filename_mkdirat+0x305/0x510 fs/namei.c:5448
 __do_sys_mkdirat fs/namei.c:5464 [inline]
 __se_sys_mkdirat+0x35/0x150 fs/namei.c:5461
 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: 0033:0x7f79d719e159
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:00007f79d7f8c028 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 00007f79d7426270 RCX: 00007f79d719e159
RDX: 0000000000000000 RSI: 0000200000000400 RDI: ffffffffffffff9c
RBP: 00007f79d723506b R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f79d7426308 R14: 00007f79d7426270 R15: 00007ffda2466978
 </TASK>
----------------
Code disassembly (best guess), 1 bytes skipped:
   0:	8c 49 c7             	mov    %cs,-0x39(%rcx)
   3:	c2 60 1e             	ret    $0x1e60
   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 21             	movb   $0x21,(%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 13 e5 38 03       	call   0x338e54a
  37:	e9 d6 fc ff ff       	jmp    0xfffffd12
  3c:	48                   	rex.W
  3d:	c7                   	.byte 0xc7
  3e:	c1                   	.byte 0xc1