[ 35.785797][ T26] audit: type=1800 audit(1555123430.938:28): pid=7443 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 36.447662][ T26] audit: type=1800 audit(1555123431.678:29): pid=7443 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 36.468323][ T26] audit: type=1800 audit(1555123431.678:30): pid=7443 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 [....] startpar: service(s) returned failure: rsyslog ssh ...[?25l[?1c7[FAIL8[?25h[?0c failed! Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.146' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 75.966018][ T7617] WARNING: CPU: 0 PID: 7617 at kernel/kthread.c:398 __kthread_bind_mask+0x3b/0xc0 [ 75.975444][ T7617] Kernel panic - not syncing: panic_on_warn set ... [ 75.982678][ T7617] CPU: 0 PID: 7617 Comm: syz-executor174 Not tainted 5.1.0-rc4+ #65 [ 75.990830][ T7617] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 76.001474][ T7617] Call Trace: [ 76.005199][ T7617] dump_stack+0x172/0x1f0 [ 76.009639][ T7617] ? __kthread_cancel_work+0x280/0x2e0 [ 76.015923][ T7617] panic+0x2cb/0x65c [ 76.020935][ T7617] ? __warn_printk+0xf3/0xf3 [ 76.025896][ T7617] ? __kthread_bind_mask+0x3b/0xc0 [ 76.031032][ T7617] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 76.037632][ T7617] ? __warn.cold+0x5/0x45 [ 76.042350][ T7617] ? __warn+0xe8/0x1d0 [ 76.046556][ T7617] ? __kthread_bind_mask+0x3b/0xc0 [ 76.051689][ T7617] __warn.cold+0x20/0x45 [ 76.056204][ T7617] ? __kthread_bind_mask+0x3b/0xc0 [ 76.061809][ T7617] report_bug+0x263/0x2b0 [ 76.066394][ T7617] do_error_trap+0x11b/0x200 [ 76.071384][ T7617] do_invalid_op+0x37/0x50 [ 76.076260][ T7617] ? __kthread_bind_mask+0x3b/0xc0 [ 76.081466][ T7617] invalid_op+0x14/0x20 [ 76.085864][ T7617] RIP: 0010:__kthread_bind_mask+0x3b/0xc0 [ 76.092256][ T7617] Code: 48 89 fb e8 27 88 24 00 4c 89 e6 48 89 df e8 dc e7 02 00 31 ff 49 89 c4 48 89 c6 e8 af 89 24 00 4d 85 e4 75 15 e8 05 88 24 00 <0f> 0b e8 fe 87 24 00 5b 41 5c 41 5d 41 5e 5d c3 e8 f0 87 24 00 4c [ 76.113088][ T7617] RSP: 0018:ffff8880a4ab7bb8 EFLAGS: 00010293 [ 76.119413][ T7617] RAX: ffff88808cab00c0 RBX: ffff888090256240 RCX: ffffffff814c06f1 [ 76.127946][ T7617] RDX: 0000000000000000 RSI: ffffffff814c06fb RDI: 0000000000000007 [ 76.136426][ T7617] RBP: ffff8880a4ab7bd8 R08: ffff88808cab00c0 R09: 0000000000000000 [ 76.144983][ T7617] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 76.154501][ T7617] R13: ffffffff87691090 R14: ffff888090256260 R15: ffffffff81c801d0 [ 76.163649][ T7617] ? io_ring_ctx_wait_and_kill+0x510/0x510 [ 76.169777][ T7617] ? __kthread_bind_mask+0x31/0xc0 [ 76.175139][ T7617] ? __kthread_bind_mask+0x3b/0xc0 [ 76.180616][ T7617] ? __kthread_bind_mask+0x3b/0xc0 [ 76.185851][ T7617] kthread_unpark+0x123/0x160 [ 76.190925][ T7617] kthread_stop+0xfa/0x6c0 [ 76.195821][ T7617] io_finish_async+0xab/0x180 [ 76.200486][ T7617] io_ring_ctx_wait_and_kill+0x133/0x510 [ 76.206176][ T7617] io_uring_release+0x42/0x50 [ 76.212446][ T7617] __fput+0x2e5/0x8d0 [ 76.217053][ T7617] ____fput+0x16/0x20 [ 76.221048][ T7617] task_work_run+0x14a/0x1c0 [ 76.225820][ T7617] do_exit+0x90a/0x2fa0 [ 76.229991][ T7617] ? mm_update_next_owner+0x640/0x640 [ 76.235920][ T7617] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 76.241570][ T7617] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 76.247667][ T7617] do_group_exit+0x135/0x370 [ 76.252537][ T7617] __x64_sys_exit_group+0x44/0x50 [ 76.257608][ T7617] do_syscall_64+0x103/0x610 [ 76.262768][ T7617] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 76.268927][ T7617] RIP: 0033:0x43ee98 [ 76.273188][ T7617] Code: Bad RIP value. [ 76.277537][ T7617] RSP: 002b:00007ffdb96f79e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 76.286401][ T7617] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000043ee98 [ 76.295074][ T7617] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 [ 76.303620][ T7617] RBP: 00000000004be6a8 R08: 00000000000000e7 R09: ffffffffffffffd0 [ 76.312821][ T7617] R10: 00000000ffffffff R11: 0000000000000246 R12: 0000000000000001 [ 76.321650][ T7617] R13: 00000000006d0180 R14: 0000000000000000 R15: 0000000000000000 [ 76.332621][ T7617] Kernel Offset: disabled [ 76.337851][ T7617] Rebooting in 86400 seconds..