Starting mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 9.283954] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 16.544406] random: sshd: uninitialized urandom read (32 bytes read) [ 16.554285] random: crng init done Warning: Permanently added '10.128.10.54' (ECDSA) to the list of known hosts. executing program [ 23.262940] audit: type=1400 audit(1536362319.135:5): avc: denied { wake_alarm } for pid=2042 comm="syz-executor857" capability=35 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=capability2 permissive=1 [ 23.287742] ODEBUG: object ffff8801cf5e7d70 is on stack ffff8801cf5e0000, but NOT annotated [ 23.296227] ------------[ cut here ]------------ [ 23.300984] WARNING: CPU: 1 PID: 2042 at lib/debugobjects.c:303 __debug_object_init.cold.8+0x6b/0x258 [ 23.310324] Kernel panic - not syncing: panic_on_warn set ... [ 23.310324] [ 23.317677] CPU: 1 PID: 2042 Comm: syz-executor857 Not tainted 4.9.125+ #37 [ 23.324760] ffff8801cf5e7ac8 ffffffff81af0ae9 ffffffff82838ba0 00000000ffffffff [ 23.332760] 0000000000000000 0000000000000001 000000000000012f ffff8801cf5e7b88 [ 23.340744] ffffffff813df095 0000000041b58ab3 ffffffff82c28773 ffffffff813deed6 [ 23.348816] Call Trace: [ 23.351460] [] dump_stack+0xc1/0x128 [ 23.356821] [] panic+0x1bf/0x39f [ 23.361827] [] ? add_taint.cold.6+0x16/0x16 [ 23.367785] [] ? vprintk_default+0x1d/0x30 [ 23.373655] [] ? __warn.cold.9+0xa6/0x17f [ 23.379433] [] ? __debug_object_init.cold.8+0x6b/0x258 [ 23.386453] [] __warn.cold.9+0xc1/0x17f [ 23.392059] [] warn_slowpath_null+0x2c/0x40 [ 23.398075] [] __debug_object_init.cold.8+0x6b/0x258 [ 23.404823] [] ? debug_object_fixup+0x30/0x30 [ 23.410993] [] ? selinux_capable+0x36/0x40 [ 23.416867] [] debug_object_init+0x16/0x20 [ 23.422735] [] hrtimer_init+0x2a/0x2e0 [ 23.428258] [] alarm_timer_nsleep+0x14d/0x4d0 [ 23.434507] [] ? alarmtimer_do_nsleep+0x2d0/0x2d0 [ 23.440986] [] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 23.447729] [] ? __might_fault+0x114/0x1d0 [ 23.453609] [] SyS_clock_nanosleep+0x1b9/0x270 [ 23.459837] [] ? SyS_clock_getres+0x200/0x200 [ 23.465977] [] ? do_syscall_64+0x48/0x480 [ 23.471872] [] ? SyS_clock_getres+0x200/0x200 [ 23.478091] [] do_syscall_64+0x19f/0x480 [ 23.483867] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 23.491551] Dumping ftrace buffer: [ 23.495260] (ftrace buffer empty) [ 23.498961] Kernel Offset: disabled [ 23.502968] Rebooting in 86400 seconds..