R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
------------[ cut here ]------------
!test_bit(IO_WQ_BIT_EXIT, &wq->state)
WARNING: io_uring/io-wq.c:1396 at io_wq_put_and_exit+0x8a7/0x9d0 io_uring/io-wq.c:1396, CPU#0: syz.2.1419/11665
Modules linked in:
CPU: 0 UID: 0 PID: 11665 Comm: syz.2.1419 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:io_wq_put_and_exit+0x8a7/0x9d0 io_uring/io-wq.c:1396
Code: ff e8 bd 7a 16 fd 44 0f b6 74 24 78 31 ff 44 89 f6 e8 fd 74 16 fd 45 84 f6 0f 85 1a fd ff ff e9 67 fd ff ff e8 9a 7a 16 fd 90 <0f> 0b 90 e9 00 f8 ff ff e8 ec 3d 83 fd e9 72 f8 ff ff 48 8b 3c 24
RSP: 0000:ffffc90002fdfbb8 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff88801345e000 RCX: ffffffff84f24486
RDX: ffff888025f3a500 RSI: ffffffff84f24c86 RDI: ffff888025f3a500
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 1ffff920005fbf99
R13: 0000000000000000 R14: ffff888025f3ae68 R15: ffff8880219d1818
FS:  0000000000000000(0000) GS:ffff8880970e2000(0063) knlGS:00000000f5307b40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 00000000f5306ff4 CR3: 0000000075ba7000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 __io_uring_add_tctx_node+0x3e8/0x4c0 io_uring/tctx.c:174
 __io_uring_add_tctx_node_from_submit+0x89/0x130 io_uring/tctx.c:189
 io_uring_add_tctx_node io_uring/tctx.h:32 [inline]
 __do_sys_io_uring_enter+0x1656/0x1b50 io_uring/io_uring.c:2629
 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:83 [inline]
 __do_fast_syscall_32+0xe7/0x950 arch/x86/entry/syscall_32.c:307
 do_fast_syscall_32+0x32/0x70 arch/x86/entry/syscall_32.c:332
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e
RIP: 0023:0xf6ffefcc
Code: d2 74 05 c1 e8 0c 89 02 8b 5d fc 31 c0 c9 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 2e 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00 58 b8
RSP: 002b:00000000f530750c EFLAGS: 00000292 ORIG_RAX: 00000000000001aa
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000000001
RDX: 0000000000000eed RSI: 0000000000000001 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
----------------
Code disassembly (best guess):
   0:	d2 74 05 c1          	shlb   %cl,-0x3f(%rbp,%rax,1)
   4:	e8 0c 89 02 8b       	call   0x8b028915
   9:	5d                   	pop    %rbp
   a:	fc                   	cld
   b:	31 c0                	xor    %eax,%eax
   d:	c9                   	leave
   e:	c3                   	ret
   f:	90                   	nop
  10:	90                   	nop
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
  16:	90                   	nop
  17:	90                   	nop
  18:	90                   	nop
  19:	90                   	nop
  1a:	90                   	nop
  1b:	90                   	nop
  1c:	90                   	nop
  1d:	90                   	nop
  1e:	0f 1f 00             	nopl   (%rax)
  21:	51                   	push   %rcx
  22:	52                   	push   %rdx
  23:	55                   	push   %rbp
  24:	89 e5                	mov    %esp,%ebp
  26:	0f 34                	sysenter
  28:	cd 80                	int    $0x80
* 2a:	5d                   	pop    %rbp <-- trapping instruction
  2b:	5a                   	pop    %rdx
  2c:	59                   	pop    %rcx
  2d:	c3                   	ret
  2e:	90                   	nop
  2f:	2e 8d b4 26 00 00 00 	cs lea 0x0(%rsi,%riz,1),%esi
  36:	00
  37:	8d b4 26 00 00 00 00 	lea    0x0(%rsi,%riz,1),%esi
  3e:	58                   	pop    %rax
  3f:	b8                   	.byte 0xb8