INIT: Entering runlevel: 2 [info] Using makefile-style concurrent boot in runlevel 2. [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.22' (ECDSA) to the list of known hosts. syzkaller login: INIT: PANIC: segmentation violation! sleeping for 30 seconds. [ 64.616847] Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b [ 64.616847] [ 64.626148] CPU: 1 PID: 1 Comm: init Not tainted 4.9.94-g8683408 #4 [ 64.632539] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 64.641868] ffff8801d9acfa00 ffffffff81eb0aa9 ffffffff83a4a360 00000000ffffffff [ 64.649848] ffff8801d9ad8000 0000000000000001 ffff8801d9ad8010 ffff8801d9acfac0 [ 64.657836] ffffffff8141f845 0000000041b58ab3 ffffffff841b7b48 ffffffff8141f686 [ 64.665828] Call Trace: [ 64.668390] [] dump_stack+0xc1/0x128 [ 64.673730] [] panic+0x1bf/0x3bc [ 64.678722] [] ? add_taint.cold.6+0x16/0x16 [ 64.684673] [] ? _raw_write_unlock_irq+0x27/0x50 [ 64.691073] [] do_exit.cold.24+0x17b/0x2b2 [ 64.696959] [] ? __sigqueue_free.part.25+0x51/0x60 [ 64.703531] [] ? release_task.part.19+0x1210/0x1210 [ 64.710185] [] do_group_exit+0x111/0x340 [ 64.715871] [] get_signal+0x4cf/0x1450 [ 64.721388] [] do_signal+0x87/0x19f0 [ 64.726728] [] ? __lock_is_held+0xa2/0xf0 [ 64.732519] [] ? setup_sigcontext+0x7d0/0x7d0 [ 64.738650] [] ? __bad_area_nosemaphore+0x1a1/0x270 [ 64.745297] [] ? bad_area+0x53/0x80 [ 64.750557] [] ? __do_page_fault+0x183/0xd50 [ 64.756591] [] ? sys_rt_sigreturn+0x1d4/0x260 [ 64.762711] [] ? exit_to_usermode_loop+0xac/0x120 [ 64.769176] [] exit_to_usermode_loop+0xe1/0x120 [ 64.775478] [] prepare_exit_to_usermode+0xbb/0xe0 [ 64.781943] [] retint_user+0x8/0x3c [ 64.787631] Dumping ftrace buffer: [ 64.791185] (ftrace buffer empty) [ 64.794869] Kernel Offset: disabled [ 64.798472] Rebooting in 86400 seconds..