[....] Starting enhanced syslogd: rsyslogd[ 15.274477] audit: type=1400 audit(1520101665.835:4): avc: denied { syslog } for pid=3664 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 '10.128.0.24' (ECDSA) to the list of known hosts. 2018/03/03 18:28:23 parsed 1 programs 2018/03/03 18:28:23 executed programs: 0 syzkaller login: [ 53.236520] audit: type=1400 audit(1520101703.795:5): avc: denied { sys_admin } for pid=3840 comm="syz-executor0" capability=21 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 [ 53.266371] IPVS: Creating netns size=2536 id=1 [ 53.298042] IPVS: Creating netns size=2536 id=2 [ 53.318479] IPVS: Creating netns size=2536 id=3 [ 53.323676] audit: type=1400 audit(1520101703.885:6): avc: denied { sys_chroot } for pid=3844 comm="syz-executor1" capability=18 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 [ 53.348850] audit: type=1400 audit(1520101703.915:7): avc: denied { net_admin } for pid=3844 comm="syz-executor1" capability=12 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 [ 53.385287] IPVS: Creating netns size=2536 id=4 [ 53.411324] IPVS: Creating netns size=2536 id=5 [ 53.422549] IPVS: Creating netns size=2536 id=6 [ 53.444236] IPVS: Creating netns size=2536 id=7 [ 53.475807] IPVS: Creating netns size=2536 id=8 2018/03/03 18:28:28 executed programs: 1634 2018/03/03 18:28:33 executed programs: 3001 2018/03/03 18:28:38 executed programs: 4377 2018/03/03 18:28:43 executed programs: 5748 2018/03/03 18:28:48 executed programs: 7116 2018/03/03 18:28:53 executed programs: 8504 [ 85.579950] ------------[ cut here ]------------ [ 85.584964] WARNING: CPU: 0 PID: 22298 at ./arch/x86/include/asm/fpu/internal.h:534 fpu__restore+0x6b6/0x8c0 [ 85.594938] Kernel panic - not syncing: panic_on_warn set ... [ 85.594938] [ 85.602291] CPU: 0 PID: 22298 Comm: syz-executor0 Not tainted 4.9.85-ge0b05e6 #57 [ 85.609892] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 85.619233] ffff8801d468fa98 ffffffff81d95739 ffffffff83a480c0 ffff8801d468fb70 [ 85.627251] ffffffff83a1e200 ffffffff8106e4b6 0000000000000009 ffff8801d468fb60 [ 85.635282] ffffffff8142f581 0000000041b58ab3 ffffffff8418b1f0 ffffffff8142f3c5 [ 85.643301] Call Trace: [ 85.645875] [] dump_stack+0xc1/0x128 [ 85.651225] [] ? fpu__restore+0x6b6/0x8c0 [ 85.657012] [] panic+0x1bc/0x3a8 [ 85.662016] [] ? percpu_up_read_preempt_enable.constprop.53+0xd7/0xd7 [ 85.670225] [] ? load_image_and_restore+0xf9/0xf9 [ 85.676689] [] ? __warn+0x1a9/0x1e0 [ 85.681939] [] ? fpu__restore+0x6b6/0x8c0 [ 85.687703] [] __warn+0x1c4/0x1e0 [ 85.692773] [] warn_slowpath_null+0x2c/0x40 [ 85.698712] [] fpu__restore+0x6b6/0x8c0 [ 85.704310] [] ? kernel_fpu_begin+0x20/0x20 [ 85.710255] [] ? __fpu__restore_sig+0x3c2/0x1330 [ 85.716629] [] ? preempt_count_add+0x25/0x170 [ 85.722742] [] __fpu__restore_sig+0x3d8/0x1330 [ 85.728944] [] ? save_fsave_header+0x190/0x190 [ 85.735143] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 85.741780] [] fpu__restore_sig+0x87/0xe0 [ 85.747546] [] ia32_restore_sigcontext+0x3d1/0x490 [ 85.754106] [] sys32_rt_sigreturn+0x1d5/0x290 [ 85.760217] [] ? sys32_sigreturn+0x2a0/0x2a0 [ 85.766241] [] ? do_fast_syscall_32+0xcf/0x870 [ 85.772438] [] ? sys32_sigreturn+0x2a0/0x2a0 [ 85.778465] [] do_fast_syscall_32+0x2f5/0x870 [ 85.784585] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 85.791229] [] entry_SYSENTER_compat+0x90/0xa2 [ 85.797949] Dumping ftrace buffer: [ 85.801498] (ftrace buffer empty) [ 85.805183] Kernel Offset: disabled [ 85.808786] Rebooting in 86400 seconds..