[....] Starting enhanced syslogd: rsyslogd[ 11.173780] audit: type=1400 audit(1514586541.968:5): avc: denied { syslog } for pid=3035 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 syzkaller login: [ 17.149836] audit: type=1400 audit(1514586547.944:6): avc: denied { map } for pid=3175 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 Warning: Permanently added '10.128.15.227' (ECDSA) to the list of known hosts. executing program [ 23.623397] audit: type=1400 audit(1514586554.418:7): avc: denied { map } for pid=3190 comm="syzkaller251158" path="/root/syzkaller251158225" dev="sda1" ino=16481 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 23.627558] IPv6: NLM_F_CREATE should be specified when creating new route [ 23.627611] IPv6: Can't replace route, no match found [ 23.627625] kasan: CONFIG_KASAN_INLINE enabled [ 23.627629] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 23.627637] general protection fault: 0000 [#1] SMP KASAN [ 23.627641] Dumping ftrace buffer: [ 23.627644] (ftrace buffer empty) [ 23.627646] Modules linked in: [ 23.627653] CPU: 1 PID: 3190 Comm: syzkaller251158 Not tainted 4.15.0-rc5+ #170 [ 23.627655] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 23.627665] RIP: 0010:fib6_add+0x733/0x15a0 [ 23.627667] RSP: 0018:ffff8801d4056ea0 EFLAGS: 00010202 [ 23.627671] RAX: dffffc0000000000 RBX: 0000000000000020 RCX: ffffffff847adc82 [ 23.627673] RDX: 0000000000000004 RSI: ffff8801c959b070 RDI: 0000000000000282 [ 23.627676] RBP: ffff8801d40571d0 R08: 1ffff1003a80acbb R09: 0000000000000000 [ 23.627678] R10: ffff8801d4057098 R11: 0000000000000000 R12: 00000000fffffffe [ 23.627680] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000009 [ 23.627683] FS: 0000000000b4b880(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 23.627685] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 23.627688] CR2: 00000000204db000 CR3: 00000001c81cb001 CR4: 00000000001606e0 [ 23.627693] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 23.627695] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 23.627696] Call Trace: [ 23.627707] ? fib6_force_start_gc+0xf0/0xf0 [ 23.627712] ? save_stack+0xa3/0xd0 [ 23.627716] ? save_stack+0x43/0xd0 [ 23.627719] ? kasan_kmalloc+0xad/0xe0 [ 23.627723] ? kmem_cache_alloc_trace+0x136/0x750 [ 23.627729] ? ip6_route_multipath_add+0x981/0x16b0 [ 23.627732] ? inet6_rtm_newroute+0xdc/0x160 [ 23.627739] ? netlink_rcv_skb+0x21e/0x460 [ 23.627744] ? rtnetlink_rcv+0x1c/0x20 [ 23.627748] ? netlink_unicast+0x4be/0x6a0 [ 23.627751] ? netlink_sendmsg+0xa4a/0xe60 [ 23.627756] ? sock_sendmsg+0xca/0x110 [ 23.627760] ? sock_write_iter+0x31a/0x5d0 [ 23.627764] ? do_iter_readv_writev+0x525/0x7f0 [ 23.627767] ? do_iter_write+0x154/0x540 [ 23.627770] ? vfs_writev+0x18a/0x340 [ 23.627773] ? do_writev+0xfc/0x2a0 [ 23.627776] ? SyS_writev+0x27/0x30 [ 23.627781] ? entry_SYSCALL_64_fastpath+0x1f/0x96 [ 23.627790] ? check_noncircular+0x20/0x20 [ 23.627794] ? print_irqtrace_events+0x270/0x270 [ 23.627799] ? __lock_is_held+0xb6/0x140 [ 23.627805] ? lock_acquire+0x1d5/0x580 [ 23.627808] ? lock_acquire+0x1d5/0x580 [ 23.627812] ? __ip6_ins_rt+0x56/0x90 [ 23.627816] ? ip6_convert_metrics+0x546/0x700 [ 23.627822] ? lock_release+0xa40/0xa40 [ 23.627827] ? dst_discard+0x50/0x50 [ 23.627834] ? ip6_route_multipath_add+0x981/0x16b0 [ 23.627838] ? __ip6_ins_rt+0x56/0x90 [ 23.627845] __ip6_ins_rt+0x6c/0x90 [ 23.627851] ip6_route_multipath_add+0xd08/0x16b0 [ 23.627863] ? ip6_route_mpath_notify+0xd0/0xd0 [ 23.627870] ? lwtunnel_valid_encap_type_attr+0x196/0x210 [ 23.627875] ? rtm_to_fib6_config+0xdf0/0x1210 [ 23.627882] ? ip6_dst_gc+0x520/0x520 [ 23.627906] inet6_rtm_newroute+0xdc/0x160 [ 23.627910] ? inet6_rtm_newroute+0xdc/0x160 [ 23.627915] ? ip6_route_multipath_add+0x16b0/0x16b0 [ 23.627937] rtnetlink_rcv_msg+0x57f/0xb10 [ 23.627942] ? ip6_route_multipath_add+0x16b0/0x16b0 [ 23.627946] ? validate_linkmsg+0x8e0/0x8e0 [ 23.627953] ? __might_fault+0x110/0x1d0 [ 23.627958] ? netlink_tap_init_net+0x350/0x350 [ 23.627964] netlink_rcv_skb+0x21e/0x460 [ 23.627968] ? validate_linkmsg+0x8e0/0x8e0 [ 23.627973] ? netlink_ack+0xa10/0xa10 [ 23.627979] ? netlink_skb_destructor+0x1d0/0x1d0 [ 23.627987] rtnetlink_rcv+0x1c/0x20 [ 23.627991] netlink_unicast+0x4be/0x6a0 [ 23.627998] ? netlink_attachskb+0x8a0/0x8a0 [ 23.628011] ? security_netlink_send+0x81/0xb0 [ 23.628016] netlink_sendmsg+0xa4a/0xe60 [ 23.628024] ? netlink_unicast+0x6a0/0x6a0 [ 23.628034] ? security_socket_sendmsg+0x89/0xb0 [ 23.628038] ? netlink_unicast+0x6a0/0x6a0 [ 23.628043] sock_sendmsg+0xca/0x110 [ 23.628048] sock_write_iter+0x31a/0x5d0 [ 23.628053] ? sock_sendmsg+0x110/0x110 [ 23.628063] ? bpf_fd_pass+0x280/0x280 [ 23.628067] ? __might_sleep+0x8c/0x190 [ 23.628073] do_iter_readv_writev+0x525/0x7f0 [ 23.628079] ? vfs_dedupe_file_range+0x8f0/0x8f0 [ 23.628087] ? rw_verify_area+0xe5/0x2b0 [ 23.628092] do_iter_write+0x154/0x540 [ 23.628096] ? dup_iter+0x260/0x260 [ 23.628105] vfs_writev+0x18a/0x340 [ 23.628111] ? __fget_light+0x297/0x380 [ 23.628116] ? vfs_iter_write+0xb0/0xb0 [ 23.628120] ? up_read+0x1a/0x40 [ 23.628127] ? __do_page_fault+0x3d6/0xc90 [ 23.628131] ? get_unused_fd_flags+0x190/0x190 [ 23.628138] ? mm_fault_error+0x2c0/0x2c0 [ 23.628143] ? sock_alloc_file+0x2a6/0x560 [ 23.628148] ? __fdget_pos+0x130/0x190 [ 23.628152] ? __fdget_raw+0x20/0x20 [ 23.628156] ? __alloc_fd+0x750/0x750 [ 23.628160] ? __do_page_fault+0xc90/0xc90 [ 23.628166] do_writev+0xfc/0x2a0 [ 23.628169] ? do_writev+0xfc/0x2a0 [ 23.628174] ? vfs_writev+0x340/0x340 [ 23.628178] ? entry_SYSCALL_64_fastpath+0x5/0x96 [ 23.628183] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 23.628189] SyS_writev+0x27/0x30 [ 23.628194] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 23.628197] RIP: 0033:0x43fcd9 [ 23.628199] RSP: 002b:00007ffc58898008 EFLAGS: 00000203 ORIG_RAX: 0000000000000014 [ 23.628203] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043fcd9 [ 23.628205] RDX: 0000000000000001 RSI: 00000000200c1000 RDI: 0000000000000003 [ 23.628207] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 23.628209] R10: 0000000000000000 R11: 0000000000000203 R12: 0000000000401640 [ 23.628211] R13: 00000000004016d0 R14: 0000000000000000 R15: 0000000000000000 [ 23.628220] Code: 24 18 f5 fc e8 cf 60 e1 fc 85 c0 0f 85 d5 03 00 00 49 8d 5e 20 e8 0e 18 f5 fc 48 89 da 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 5a 0c 00 00 4d 39 ee 4d 8b 7e 20 0f 95 c0 4c [ 23.628286] RIP: fib6_add+0x733/0x15a0 RSP: ffff8801d4056ea0 [ 23.628312] ---[ end trace 760fede1ab0f294b ]--- [ 23.628315] Kernel panic - not syncing: Fatal exception in interrupt [ 23.649289] Dumping ftrace buffer: [ 23.649293] (ftrace buffer empty) [ 23.649295] Kernel Offset: disabled [ 24.237535] Rebooting in 86400 seconds..