[?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[ 9.888035] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 35.562969] random: crng init done Warning: Permanently added '10.128.0.100' (ECDSA) to the list of known hosts. 2018/11/01 04:59:57 parsed 1 programs 2018/11/01 04:59:59 executed programs: 0 [ 44.923176] audit: type=1400 audit(1541048399.779:5): avc: denied { sys_admin } for pid=2066 comm="syz-executor2" 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 [ 44.937904] audit: type=1400 audit(1541048399.779:6): avc: denied { net_admin } for pid=2073 comm="syz-executor5" 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 [ 47.393161] audit: type=1400 audit(1541048402.249:7): avc: denied { sys_chroot } for pid=2090 comm="syz-executor2" 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 [ 47.423536] audit: type=1400 audit(1541048402.279:8): avc: denied { associate } for pid=2090 comm="syz-executor2" name="syz2" scontext=unconfined_u:object_r:unlabeled_t:s0 tcontext=system_u:object_r:unlabeled_t:s0 tclass=filesystem permissive=1 [ 48.168034] ------------[ cut here ]------------ [ 48.172868] WARNING: CPU: 0 PID: 3842 at net/core/dev.c:2495 skb_warn_bad_offload+0x2b0/0x390 [ 48.181530] sit0: caps=(0x00000000803b7869, 0x0000000000000000) len=65081 data_len=65033 gso_size=1432 gso_type=2 ip_summed=0 [ 48.193000] Kernel panic - not syncing: panic_on_warn set ... [ 48.193000] [ 48.200362] CPU: 0 PID: 3842 Comm: syz-executor1 Not tainted 4.9.135+ #15 [ 48.207275] ffff8801cdfff150 ffffffff81b36bf9 ffffffff82a38ba0 00000000ffffffff [ 48.215340] 0000000000000000 0000000000000000 00000000000009bf ffff8801cdfff210 [ 48.223401] ffffffff813f6aa5 0000000041b58ab3 ffffffff82e2a6e3 ffffffff813f68e6 [ 48.231455] Call Trace: [ 48.234038] [] dump_stack+0xc1/0x128 [ 48.239398] [] panic+0x1bf/0x39f [ 48.244405] [] ? add_taint.cold.6+0x16/0x16 [ 48.250374] [] ? __warn.cold.9+0xa6/0x17f [ 48.256173] [] ? skb_warn_bad_offload+0x2b0/0x390 [ 48.262667] [] __warn.cold.9+0xc1/0x17f [ 48.268287] [] warn_slowpath_fmt+0xc2/0x100 [ 48.274251] [] ? __warn+0x50/0x50 [ 48.279351] [] ? _raw_spin_unlock_irqrestore+0x45/0x70 [ 48.286275] [] ? ___ratelimit+0x53/0x401 [ 48.291999] [] skb_warn_bad_offload+0x2b0/0x390 [ 48.298312] [] __skb_gso_segment+0x57e/0x6b0 [ 48.304364] [] validate_xmit_skb+0x490/0xab0 [ 48.310419] [] ? check_preemption_disabled+0x3b/0x170 [ 48.317255] [] ? check_preemption_disabled+0x3b/0x170 [ 48.324088] [] __dev_queue_xmit+0x835/0x1b90 [ 48.330142] [] ? __dev_queue_xmit+0x1d4/0x1b90 [ 48.336374] [] ? netdev_pick_tx+0x2c0/0x2c0 [ 48.342341] [] ? __lock_acquire+0x654/0x4a10 [ 48.348899] [] ? nf_ct_deliver_cached_events+0x335/0x560 [ 48.356006] [] ? nf_ct_deliver_cached_events+0x83/0x560 [ 48.363018] [] ? nf_conntrack_eventmask_report+0x670/0x670 [ 48.370286] [] ? check_preemption_disabled+0x3b/0x170 [ 48.377120] [] dev_queue_xmit+0x17/0x20 [ 48.382742] [] neigh_direct_output+0x15/0x20 [ 48.388800] [] ip6_finish_output2+0xb0e/0x1d10 [ 48.395028] [] ? ip6_finish_output2+0x177/0x1d10 [ 48.401427] [] ? ip6_forward_finish+0x4a0/0x4a0 [ 48.407745] [] ? check_preemption_disabled+0x3b/0x170 [ 48.414578] [] ? check_preemption_disabled+0x3b/0x170 [ 48.421410] [] ? ip6_mtu+0x217/0x340 [ 48.426771] [] ip6_finish_output+0x334/0x980 [ 48.432828] [] ip6_output+0x1ea/0x6d0 [ 48.438275] [] ? ip6_output+0x2e7/0x6d0 [ 48.443893] [] ? ip6_finish_output+0x980/0x980 [ 48.450121] [] ? ip6_fragment+0x3160/0x3160 [ 48.456180] [] ? xfrm_lookup_route+0x61/0x140 [ 48.462766] [] ip6_local_out+0x9b/0x180 [ 48.468388] [] ip6_send_skb+0xa1/0x340 [ 48.473921] [] udp_v6_send_skb+0x843/0xe70 [ 48.479802] [] udpv6_sendmsg+0x1ebb/0x2430 [ 48.485683] [] ? ip_reply_glue_bits+0xb0/0xb0 [ 48.491828] [] ? udp_v6_flush_pending_frames+0xe0/0xe0 [ 48.498744] [] ? udp_seq_next+0x80/0x80 [ 48.504345] [] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 48.511080] [] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 48.517822] [] ? __local_bh_enable_ip+0x6a/0xd0 [ 48.524118] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 48.530940] [] ? release_sock+0x14e/0x1c0 [ 48.536739] [] inet_sendmsg+0x203/0x4d0 [ 48.542339] [] ? inet_sendmsg+0x73/0x4d0 [ 48.548039] [] ? inet_recvmsg+0x4c0/0x4c0 [ 48.553814] [] sock_sendmsg+0xbb/0x110 [ 48.559328] [] SyS_sendto+0x220/0x370 [ 48.564753] [] ? SyS_getpeername+0x2d0/0x2d0 [ 48.570792] [] ? kvm_clock_read+0x23/0x40 [ 48.576563] [] ? kvm_clock_get_cycles+0x9/0x10 [ 48.582773] [] ? ktime_get_ts64+0x24e/0x2e0 [ 48.588720] [] ? SyS_clock_settime+0x220/0x220 [ 48.594928] [] ? __compat_put_timespec.isra.3+0xc7/0x140 [ 48.602004] [] ? compat_SyS_clock_gettime+0x131/0x1b0 [ 48.608818] [] ? compat_SyS_clock_settime+0x1a0/0x1a0 [ 48.615641] [] ? do_fast_syscall_32+0xcf/0xa10 [ 48.621872] [] ? SyS_getpeername+0x2d0/0x2d0 [ 48.627907] [] do_fast_syscall_32+0x2f1/0xa10 [ 48.634030] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 48.640674] [] entry_SYSENTER_compat+0x90/0xa2 [ 48.647251] Kernel Offset: disabled [ 48.650867] Rebooting in 86400 seconds..