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:00007ff2b3e68028 EFLAGS: 00000246 ORIG_RAX: 00000000000001aa
RAX: ffffffffffffffda RBX: 00007ff2b5f16090 RCX: 00007ff2b5c9c819
RDX: 0000000000006d93 RSI: 0000000000006516 RDI: 0000000000000004
RBP: 00007ff2b3e68090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ff2b5f16128 R14: 00007ff2b5f16090 R15: 00007ffe145f26f8
 </TASK>
------------[ cut here ]------------
!test_bit(IO_WQ_BIT_EXIT, &wq->state)
WARNING: io_uring/io-wq.c:1396 at io_wq_put_and_exit+0xa36/0xa70 io_uring/io-wq.c:1396, CPU#0: syz.1.36/6118
Modules linked in:
CPU: 0 UID: 0 PID: 6118 Comm: syz.1.36 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
RIP: 0010:io_wq_put_and_exit+0xa36/0xa70 io_uring/io-wq.c:1396
Code: fd 65 48 8b 05 0b 98 b5 0d 48 3b 44 24 50 75 4d 48 83 c4 58 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc e8 cb 81 2a fd 90 <0f> 0b 90 e9 36 f6 ff ff e8 bd 81 2a fd 4c 89 f7 be 03 00 00 00 e8
RSP: 0018:ffffc9000596fb90 EFLAGS: 00010293
RAX: ffffffff8499d835 RBX: 0000000000000000 RCX: ffff888019d19e80
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000596fce8 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffed1008340a01 R12: 00000000fffffff4
R13: ffff888041a05000 R14: ffff888019d1a810 R15: 1ffff110033a3502
FS:  00007ff2b3e686c0(0000) GS:ffff888126329000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff2b3e67ff8 CR3: 0000000024ca6000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 __io_uring_add_tctx_node+0x402/0x5f0 io_uring/tctx.c:174
 __io_uring_add_tctx_node_from_submit+0x90/0x120 io_uring/tctx.c:189
 io_uring_add_tctx_node io_uring/tctx.h:32 [inline]
 __do_sys_io_uring_enter io_uring/io_uring.c:2629 [inline]
 __se_sys_io_uring_enter+0x191e/0x1bf0 io_uring/io_uring.c:2583
 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: 0033:0x7ff2b5c9c819
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:00007ff2b3e68028 EFLAGS: 00000246 ORIG_RAX: 00000000000001aa
RAX: ffffffffffffffda RBX: 00007ff2b5f16090 RCX: 00007ff2b5c9c819
RDX: 0000000000006d93 RSI: 0000000000006516 RDI: 0000000000000004
RBP: 00007ff2b3e68090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ff2b5f16128 R14: 00007ff2b5f16090 R15: 00007ffe145f26f8
 </TASK>
----------------
Code disassembly (best guess):
   0:	ff c3                	inc    %ebx
   2:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   9:	00 00 00
   c:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  11:	48 89 f8             	mov    %rdi,%rax
  14:	48 89 f7             	mov    %rsi,%rdi
  17:	48 89 d6             	mov    %rdx,%rsi
  1a:	48 89 ca             	mov    %rcx,%rdx
  1d:	4d 89 c2             	mov    %r8,%r10
  20:	4d 89 c8             	mov    %r9,%r8
  23:	4c 8b 4c 24 08       	mov    0x8(%rsp),%r9
  28:	0f 05                	syscall
* 2a:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax <-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 c7 c1 e8 ff ff ff 	mov    $0xffffffffffffffe8,%rcx
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W