[....] Starting enhanced syslogd: rsyslogd[ 12.452617] audit: type=1400 audit(1521328792.069:4): avc: denied { syslog } for pid=3638 comm="rsyslogd" capability=34 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1 [?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting file context maintaining daemon: restorecond[?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 '10.128.0.48' (ECDSA) to the list of known hosts. 2018/03/17 23:21:26 parsed 1 programs 2018/03/17 23:21:26 executed programs: 0 syzkaller login: [ 107.131576] IPVS: Creating netns size=2536 id=1 [ 107.152109] IPVS: Creating netns size=2536 id=2 [ 107.172766] IPVS: Creating netns size=2536 id=3 [ 107.203489] IPVS: Creating netns size=2536 id=4 [ 107.224621] IPVS: Creating netns size=2536 id=5 [ 107.246130] IPVS: Creating netns size=2536 id=6 [ 107.279558] IPVS: Creating netns size=2536 id=7 [ 107.311976] IPVS: Creating netns size=2536 id=8 2018/03/17 23:21:31 executed programs: 1119 INIT: Id "2" respawning too fast: disabled for 5 minutes INIT: Id "5" respawning too fast: disabled for 5 minutes INIT: Id "6" respawning too fast: disabled for 5 minutes INIT: Id "1" respawning too fast: disabled for 5 minutes INIT: Id "3" respawning too fast: disabled for 5 minutes INIT: Id "4" respawning too fast: disabled for 5 minutes 2018/03/17 23:21:36 executed programs: 2148 2018/03/17 23:21:41 executed programs: 3188 2018/03/17 23:21:46 executed programs: 4241 2018/03/17 23:21:51 executed programs: 5279 [ 132.166851] ------------[ cut here ]------------ [ 132.171666] WARNING: CPU: 1 PID: 19756 at ./arch/x86/include/asm/fpu/internal.h:534 fpu__restore+0x6b6/0x8c0 [ 132.181641] Kernel panic - not syncing: panic_on_warn set ... [ 132.181641] [ 132.189425] CPU: 1 PID: 19756 Comm: syz-executor2 Not tainted 4.9.87-gfc8bd0f #6 [ 132.196941] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 132.206275] ffff8801d6907a98 ffffffff81d95bd9 ffffffff83a480c0 ffff8801d6907b70 [ 132.214300] ffffffff83a1e200 ffffffff8106e4b6 0000000000000009 ffff8801d6907b60 [ 132.222317] ffffffff8142f7e1 0000000041b58ab3 ffffffff8418b890 ffffffff8142f625 [ 132.230346] Call Trace: [ 132.232925] [] dump_stack+0xc1/0x128 [ 132.238277] [] ? fpu__restore+0x6b6/0x8c0 [ 132.244054] [] panic+0x1bc/0x3a8 [ 132.249057] [] ? percpu_up_read_preempt_enable.constprop.53+0xd7/0xd7 [ 132.257271] [] ? load_image_and_restore+0xf9/0xf9 [ 132.263752] [] ? __warn+0x1a9/0x1e0 [ 132.269015] [] ? fpu__restore+0x6b6/0x8c0 [ 132.274795] [] __warn+0x1c4/0x1e0 [ 132.279879] [] warn_slowpath_null+0x2c/0x40 [ 132.285833] [] fpu__restore+0x6b6/0x8c0 [ 132.291434] [] ? kernel_fpu_begin+0x20/0x20 [ 132.297386] [] ? __fpu__restore_sig+0x3bd/0x1330 [ 132.303760] [] __fpu__restore_sig+0x3d8/0x1330 [ 132.309960] [] ? save_fsave_header+0x190/0x190 [ 132.316161] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 132.322797] [] fpu__restore_sig+0x87/0xe0 [ 132.328567] [] ia32_restore_sigcontext+0x3d1/0x490 [ 132.335114] [] sys32_rt_sigreturn+0x1d5/0x290 [ 132.341224] [] ? sys32_sigreturn+0x2a0/0x2a0 [ 132.347250] [] ? do_fast_syscall_32+0xcf/0x870 [ 132.353451] [] ? sys32_sigreturn+0x2a0/0x2a0 [ 132.359477] [] do_fast_syscall_32+0x2f5/0x870 [ 132.365597] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 132.372231] [] entry_SYSENTER_compat+0x90/0xa2 [ 132.378925] Dumping ftrace buffer: [ 132.382479] (ftrace buffer empty) [ 132.386157] Kernel Offset: disabled [ 132.389755] Rebooting in 86400 seconds..