WARNING: CPU: 0 PID: 8320 at kernel/kthread.c:399 __kthread_bind_mask+0x3b/0xc0 kernel/kthread.c:399
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 8320 Comm: syz-executor.5 Not tainted 5.1.0-rc5-next-20190418 #28
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x172/0x1f0 lib/dump_stack.c:113
 panic+0x2cb/0x72b kernel/panic.c:214
 __warn.cold+0x20/0x46 kernel/panic.c:576
 report_bug+0x263/0x2b0 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:179 [inline]
 fixup_bug arch/x86/kernel/traps.c:174 [inline]
 do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:272
 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:291
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:972
RIP: 0010:__kthread_bind_mask+0x3b/0xc0 kernel/kthread.c:399
Code: 48 89 fb e8 d7 bc 24 00 4c 89 e6 48 89 df e8 ac e0 02 00 31 ff 49 89 c4 48 89 c6 e8 5f be 24 00 4d 85 e4 75 15 e8 b5 bc 24 00 <0f> 0b e8 ae bc 24 00 5b 41 5c 41 5d 41 5e 5d c3 e8 a0 bc 24 00 4c
RSP: 0018:ffff888057f97958 EFLAGS: 00010293
RAX: ffff88808beba1c0 RBX: ffff88808c6c02c0 RCX: ffffffff814c09d1
RDX: 0000000000000000 RSI: ffffffff814c09db RDI: 0000000000000007
RBP: ffff888057f97978 R08: ffff88808beba1c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffffffff87691648 R14: ffff88808c6c02e0 R15: ffffffff81c92ca0
 __kthread_bind kernel/kthread.c:412 [inline]
 kthread_unpark+0x123/0x160 kernel/kthread.c:480
 kthread_stop+0xfa/0x6c0 kernel/kthread.c:556
 io_sq_thread_stop fs/io_uring.c:2057 [inline]
 io_sq_thread_stop fs/io_uring.c:2052 [inline]
 io_finish_async+0xab/0x180 fs/io_uring.c:2064
 io_ring_ctx_free fs/io_uring.c:2538 [inline]
 io_ring_ctx_wait_and_kill+0x133/0x510 fs/io_uring.c:2595
 io_uring_release+0x42/0x50 fs/io_uring.c:2603
 __fput+0x2e5/0x8d0 fs/file_table.c:278
 ____fput+0x16/0x20 fs/file_table.c:309
 task_work_run+0x14a/0x1c0 kernel/task_work.c:113
 exit_task_work include/linux/task_work.h:22 [inline]
 do_exit+0x90a/0x2fa0 kernel/exit.c:876
 do_group_exit+0x135/0x370 kernel/exit.c:980
 get_signal+0x399/0x1d50 kernel/signal.c:2578
 do_signal+0x87/0x1900 arch/x86/kernel/signal.c:818
 exit_to_usermode_loop+0x244/0x2c0 arch/x86/entry/common.c:163
 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:276 [inline]
 do_syscall_64+0x57e/0x670 arch/x86/entry/common.c:301
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45b69a
Code: b8 a6 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 2d 8e fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 0a 8e fb ff c3 66 0f 1f 84 00 00 00 00 00
RSP: 002b:00007fee7cefea88 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
RAX: 0000000000000000 RBX: 00007fee7cefeb40 RCX: 000000000045b69a
RDX: 00007fee7cefeae0 RSI: 0000000020000280 RDI: 00007fee7cefeb00
RBP: 0000000000000001 R08: 00007fee7cefeb40 R09: 00007fee7cefeae0
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000003
R13: 00000000004c77c3 R14: 00000000004dd808 R15: 00000000ffffffff
Kernel Offset: disabled
Rebooting in 86400 seconds..