[ 38.320782][ T26] audit: type=1800 audit(1555104724.392:25): pid=7670 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 38.355241][ T26] audit: type=1800 audit(1555104724.392:26): pid=7670 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 38.396163][ T26] audit: type=1800 audit(1555104724.402:27): pid=7670 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 38.420538][ T26] audit: type=1800 audit(1555104724.402:28): pid=7670 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.114' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 67.645934][ T7822] WARNING: CPU: 0 PID: 7822 at kernel/kthread.c:399 __kthread_bind_mask+0x3b/0xc0 [ 67.655156][ T7822] Kernel panic - not syncing: panic_on_warn set ... [ 67.661737][ T7822] CPU: 0 PID: 7822 Comm: syz-executor030 Not tainted 5.1.0-rc4-next-20190412 #24 [ 67.670839][ T7822] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 67.681505][ T7822] Call Trace: [ 67.684789][ T7822] dump_stack+0x172/0x1f0 [ 67.689252][ T7822] ? __kthread_bind_mask+0x20/0xc0 [ 67.694429][ T7822] panic+0x2cb/0x72b [ 67.698317][ T7822] ? __warn_printk+0xf3/0xf3 [ 67.702898][ T7822] ? __kthread_bind_mask+0x3b/0xc0 [ 67.707998][ T7822] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 67.714229][ T7822] ? __warn.cold+0x5/0x46 [ 67.718542][ T7822] ? __warn+0xe8/0x1d0 [ 67.722603][ T7822] ? __kthread_bind_mask+0x3b/0xc0 [ 67.727709][ T7822] __warn.cold+0x20/0x46 [ 67.731943][ T7822] ? __kthread_bind_mask+0x3b/0xc0 [ 67.737039][ T7822] report_bug+0x263/0x2b0 [ 67.741353][ T7822] do_error_trap+0x11b/0x200 [ 67.745988][ T7822] do_invalid_op+0x37/0x50 [ 67.750407][ T7822] ? __kthread_bind_mask+0x3b/0xc0 [ 67.755577][ T7822] invalid_op+0x14/0x20 [ 67.759720][ T7822] RIP: 0010:__kthread_bind_mask+0x3b/0xc0 [ 67.765426][ T7822] Code: 48 89 fb e8 f7 ab 24 00 4c 89 e6 48 89 df e8 ac e1 02 00 31 ff 49 89 c4 48 89 c6 e8 7f ad 24 00 4d 85 e4 75 15 e8 d5 ab 24 00 <0f> 0b e8 ce ab 24 00 5b 41 5c 41 5d 41 5e 5d c3 e8 c0 ab 24 00 4c [ 67.785060][ T7822] RSP: 0018:ffff8880a89bfbb8 EFLAGS: 00010293 [ 67.791121][ T7822] RAX: ffff88808ca7a280 RBX: ffff8880a98e4380 RCX: ffffffff814bdd11 [ 67.799310][ T7822] RDX: 0000000000000000 RSI: ffffffff814bdd1b RDI: 0000000000000007 [ 67.807320][ T7822] RBP: ffff8880a89bfbd8 R08: ffff88808ca7a280 R09: 0000000000000000 [ 67.815292][ T7822] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 67.823315][ T7822] R13: ffffffff87691148 R14: ffff8880a98e43a0 R15: ffffffff81c91e10 [ 67.831349][ T7822] ? io_ring_ctx_wait_and_kill+0x510/0x510 [ 67.837170][ T7822] ? __kthread_bind_mask+0x31/0xc0 [ 67.842269][ T7822] ? __kthread_bind_mask+0x3b/0xc0 [ 67.847384][ T7822] ? __kthread_bind_mask+0x3b/0xc0 [ 67.852485][ T7822] kthread_unpark+0x123/0x160 [ 67.857146][ T7822] kthread_stop+0xfa/0x6c0 [ 67.861560][ T7822] io_finish_async+0xab/0x180 [ 67.866230][ T7822] io_ring_ctx_wait_and_kill+0x133/0x510 [ 67.871892][ T7822] io_uring_release+0x42/0x50 [ 67.876566][ T7822] __fput+0x2e5/0x8d0 [ 67.880578][ T7822] ____fput+0x16/0x20 [ 67.884553][ T7822] task_work_run+0x14a/0x1c0 [ 67.889177][ T7822] do_exit+0x90a/0x2fa0 [ 67.893516][ T7822] ? mm_update_next_owner+0x640/0x640 [ 67.898887][ T7822] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 67.904336][ T7822] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 67.909786][ T7822] do_group_exit+0x135/0x370 [ 67.914360][ T7822] __x64_sys_exit_group+0x44/0x50 [ 67.919433][ T7822] do_syscall_64+0x103/0x610 [ 67.924032][ T7822] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 67.929911][ T7822] RIP: 0033:0x43ee98 [ 67.933799][ T7822] Code: Bad RIP value. [ 67.937858][ T7822] RSP: 002b:00007fff28656a18 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 67.946442][ T7822] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000043ee98 [ 67.954462][ T7822] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 [ 67.962433][ T7822] RBP: 00000000004be6a8 R08: 00000000000000e7 R09: ffffffffffffffd0 [ 67.970410][ T7822] R10: 00000000ffffffff R11: 0000000000000246 R12: 0000000000000001 [ 67.978391][ T7822] R13: 00000000006d0180 R14: 0000000000000000 R15: 0000000000000000 [ 67.986945][ T7822] Kernel Offset: disabled [ 67.991339][ T7822] Rebooting in 86400 seconds..