FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 1
CPU: 0 UID: 0 PID: 5337 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
Call Trace:
 <TASK>
 dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
 fail_dump lib/fault-inject.c:73 [inline]
 should_fail_ex+0x412/0x560 lib/fault-inject.c:174
 should_failslab+0xa8/0x100 mm/failslab.c:46
 slab_pre_alloc_hook mm/slub.c:4522 [inline]
 slab_alloc_node mm/slub.c:4875 [inline]
 __kmalloc_cache_noprof+0x88/0x660 mm/slub.c:5410
 kmalloc_noprof include/linux/slab.h:950 [inline]
 io_tctx_install_node io_uring/tctx.c:120 [inline]
 __io_uring_add_tctx_node+0x199/0x5f0 io_uring/tctx.c:167
 io_uring_create+0x5ac/0x9a0 io_uring/io_uring.c:3063
 io_uring_setup io_uring/io_uring.c:3108 [inline]
 __do_sys_io_uring_setup io_uring/io_uring.c:3142 [inline]
 __se_sys_io_uring_setup+0x2a8/0x2c0 io_uring/io_uring.c:3133
 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: 0033:0x7f7beb79c819
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:00007f7bec6dbfe8 EFLAGS: 00000246 ORIG_RAX: 00000000000001a9
RAX: ffffffffffffffda RBX: 00007f7beba15fa0 RCX: 00007f7beb79c819
RDX: 0000000000000000 RSI: 0000200000000540 RDI: 00000000000073aa
RBP: 00007f7bec6dc050 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 00007f7beba16038 R14: 00007f7beba15fa0 R15: 00007ffd3526c5f8
 </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.0.0/5337
Modules linked in:
CPU: 0 UID: 0 PID: 5337 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:io_wq_put_and_exit+0xa36/0xa70 io_uring/io-wq.c:1396
Code: fd 65 48 8b 05 db 73 94 0e 48 3b 44 24 50 75 4d 48 83 c4 58 5b 41 5c 41 5d 41 5e 41 5f 5d e9 41 59 0e 07 cc e8 ab 98 19 fd 90 <0f> 0b 90 e9 36 f6 ff ff e8 9d 98 19 fd 4c 89 f7 be 03 00 00 00 e8
RSP: 0018:ffffc9000ddb7bb0 EFLAGS: 00010293
RAX: ffffffff84ab8c65 RBX: 0000000000000000 RCX: ffff888000cf4a00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000ddb7d08 R08: ffff888012ef5007 R09: 1ffff110025dea00
R10: dffffc0000000000 R11: ffffed10025dea01 R12: 00000000fffffff4
R13: ffff888012ef5000 R14: ffff888000cf5368 R15: 1ffff1100019ea6d
FS:  00007f7bec6dc6c0(0000) GS:ffff88808c820000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9cdbcd7490 CR3: 0000000039b2f000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 __io_uring_add_tctx_node+0x402/0x5f0 io_uring/tctx.c:174
 io_uring_create+0x5ac/0x9a0 io_uring/io_uring.c:3063
 io_uring_setup io_uring/io_uring.c:3108 [inline]
 __do_sys_io_uring_setup io_uring/io_uring.c:3142 [inline]
 __se_sys_io_uring_setup+0x2a8/0x2c0 io_uring/io_uring.c:3133
 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: 0033:0x7f7beb79c819
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:00007f7bec6dbfe8 EFLAGS: 00000246 ORIG_RAX: 00000000000001a9
RAX: ffffffffffffffda RBX: 00007f7beba15fa0 RCX: 00007f7beb79c819
RDX: 0000000000000000 RSI: 0000200000000540 RDI: 00000000000073aa
RBP: 00007f7bec6dc050 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 00007f7beba16038 R14: 00007f7beba15fa0 R15: 00007ffd3526c5f8
 </TASK>