[....] Starting enhanced syslogd: rsyslogd[ 11.356050] audit: type=1400 audit(1514602467.424:5): avc: denied { syslog } for pid=3039 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 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[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 18.179983] audit: type=1400 audit(1514602474.248:6): avc: denied { map } for pid=3179 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 '10.128.15.241' (ECDSA) to the list of known hosts. executing program [ 24.387724] audit: type=1400 audit(1514602480.456:7): avc: denied { map } for pid=3193 comm="syzkaller008402" path="/root/syzkaller008402360" 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 [ 24.390716] IPv6: Can't replace route, no match found [ 24.390733] kasan: CONFIG_KASAN_INLINE enabled [ 24.390748] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 24.390755] general protection fault: 0000 [#1] SMP KASAN [ 24.390759] Dumping ftrace buffer: [ 24.390761] (ftrace buffer empty) [ 24.390763] Modules linked in: [ 24.390769] CPU: 1 PID: 3193 Comm: syzkaller008402 Not tainted 4.15.0-rc5+ #170 [ 24.390771] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 24.390780] RIP: 0010:fib6_add+0x733/0x15a0 [ 24.390782] RSP: 0018:ffff8801c84feea0 EFLAGS: 00010202 [ 24.390786] RAX: dffffc0000000000 RBX: 0000000000000020 RCX: ffffffff847adc82 [ 24.390788] RDX: 0000000000000004 RSI: ffff8801d38080f0 RDI: 0000000000000282 [ 24.390791] RBP: ffff8801c84ff1d0 R08: 1ffff1003909fcbb R09: 0000000000000000 [ 24.390793] R10: ffff8801c84ff098 R11: 0000000000000000 R12: 00000000fffffffe [ 24.390795] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000009 [ 24.390798] FS: 0000000001d59880(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 24.390800] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 24.390803] CR2: 0000000020be1000 CR3: 00000001c8298005 CR4: 00000000001606e0 [ 24.390808] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 24.390810] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 24.390811] Call Trace: [ 24.390821] ? fib6_force_start_gc+0xf0/0xf0 [ 24.390826] ? save_stack+0xa3/0xd0 [ 24.390830] ? save_stack+0x43/0xd0 [ 24.390833] ? kasan_kmalloc+0xad/0xe0 [ 24.390837] ? kmem_cache_alloc_trace+0x136/0x750 [ 24.390842] ? ip6_route_multipath_add+0x981/0x16b0 [ 24.390846] ? inet6_rtm_newroute+0xdc/0x160 [ 24.390852] ? netlink_rcv_skb+0x21e/0x460 [ 24.390858] ? rtnetlink_rcv+0x1c/0x20 [ 24.390861] ? netlink_unicast+0x4be/0x6a0 [ 24.390864] ? netlink_sendmsg+0xa4a/0xe60 [ 24.390869] ? sock_sendmsg+0xca/0x110 [ 24.390873] ? sock_write_iter+0x31a/0x5d0 [ 24.390877] ? do_iter_readv_writev+0x525/0x7f0 [ 24.390880] ? do_iter_write+0x154/0x540 [ 24.390883] ? vfs_writev+0x18a/0x340 [ 24.390885] ? do_writev+0xfc/0x2a0 [ 24.390889] ? SyS_writev+0x27/0x30 [ 24.390894] ? entry_SYSCALL_64_fastpath+0x1f/0x96 [ 24.390901] ? check_noncircular+0x20/0x20 [ 24.390906] ? print_irqtrace_events+0x270/0x270 [ 24.390910] ? __lock_is_held+0xb6/0x140 [ 24.390916] ? lock_acquire+0x1d5/0x580 [ 24.390919] ? lock_acquire+0x1d5/0x580 [ 24.390923] ? __ip6_ins_rt+0x56/0x90 [ 24.390927] ? ip6_convert_metrics+0x546/0x700 [ 24.390933] ? lock_release+0xa40/0xa40 [ 24.390937] ? dst_discard+0x50/0x50 [ 24.390945] ? ip6_route_multipath_add+0x981/0x16b0 [ 24.390948] ? __ip6_ins_rt+0x56/0x90 [ 24.390955] __ip6_ins_rt+0x6c/0x90 [ 24.390962] ip6_route_multipath_add+0xd08/0x16b0 [ 24.390973] ? ip6_route_mpath_notify+0xd0/0xd0 [ 24.390979] ? lwtunnel_valid_encap_type_attr+0x196/0x210 [ 24.390985] ? rtm_to_fib6_config+0xdf0/0x1210 [ 24.390991] ? ip6_dst_gc+0x520/0x520 [ 24.391019] inet6_rtm_newroute+0xdc/0x160 [ 24.391023] ? inet6_rtm_newroute+0xdc/0x160 [ 24.391028] ? ip6_route_multipath_add+0x16b0/0x16b0 [ 24.391048] rtnetlink_rcv_msg+0x57f/0xb10 [ 24.391053] ? ip6_route_multipath_add+0x16b0/0x16b0 [ 24.391057] ? validate_linkmsg+0x8e0/0x8e0 [ 24.391064] ? __might_fault+0x110/0x1d0 [ 24.391069] ? netlink_tap_init_net+0x350/0x350 [ 24.391075] netlink_rcv_skb+0x21e/0x460 [ 24.391079] ? validate_linkmsg+0x8e0/0x8e0 [ 24.391083] ? netlink_ack+0xa10/0xa10 [ 24.391089] ? netlink_skb_destructor+0x1d0/0x1d0 [ 24.391097] rtnetlink_rcv+0x1c/0x20 [ 24.391101] netlink_unicast+0x4be/0x6a0 [ 24.391108] ? netlink_attachskb+0x8a0/0x8a0 [ 24.391117] ? security_netlink_send+0x81/0xb0 [ 24.391123] netlink_sendmsg+0xa4a/0xe60 [ 24.391131] ? netlink_unicast+0x6a0/0x6a0 [ 24.391137] ? security_socket_sendmsg+0x89/0xb0 [ 24.391141] ? netlink_unicast+0x6a0/0x6a0 [ 24.391146] sock_sendmsg+0xca/0x110 [ 24.391151] sock_write_iter+0x31a/0x5d0 [ 24.391156] ? sock_sendmsg+0x110/0x110 [ 24.391165] ? bpf_fd_pass+0x280/0x280 [ 24.391170] ? __might_sleep+0x8c/0x190 [ 24.391175] do_iter_readv_writev+0x525/0x7f0 [ 24.391181] ? vfs_dedupe_file_range+0x8f0/0x8f0 [ 24.391188] ? rw_verify_area+0xe5/0x2b0 [ 24.391194] do_iter_write+0x154/0x540 [ 24.391198] ? dup_iter+0x260/0x260 [ 24.391207] vfs_writev+0x18a/0x340 [ 24.391213] ? __fget_light+0x297/0x380 [ 24.391218] ? vfs_iter_write+0xb0/0xb0 [ 24.391222] ? up_read+0x1a/0x40 [ 24.391228] ? __do_page_fault+0x3d6/0xc90 [ 24.391232] ? get_unused_fd_flags+0x190/0x190 [ 24.391239] ? mm_fault_error+0x2c0/0x2c0 [ 24.391244] ? sock_alloc_file+0x2a6/0x560 [ 24.391249] ? __fdget_pos+0x130/0x190 [ 24.391253] ? __fdget_raw+0x20/0x20 [ 24.391257] ? __alloc_fd+0x750/0x750 [ 24.391261] ? __do_page_fault+0xc90/0xc90 [ 24.391267] do_writev+0xfc/0x2a0 [ 24.391270] ? do_writev+0xfc/0x2a0 [ 24.391275] ? vfs_writev+0x340/0x340 [ 24.391279] ? entry_SYSCALL_64_fastpath+0x5/0x96 [ 24.391284] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 24.391290] SyS_writev+0x27/0x30 [ 24.391295] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 24.391298] RIP: 0033:0x43fcd9 [ 24.391300] RSP: 002b:00007ffd5cc40248 EFLAGS: 00000203 ORIG_RAX: 0000000000000014 [ 24.391303] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043fcd9 [ 24.391305] RDX: 0000000000000001 RSI: 00000000204aaff0 RDI: 0000000000000003 [ 24.391307] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 24.391309] R10: 0000000000000000 R11: 0000000000000203 R12: 0000000000401640 [ 24.391311] R13: 00000000004016d0 R14: 0000000000000000 R15: 0000000000000000 [ 24.391320] 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 [ 24.391386] RIP: fib6_add+0x733/0x15a0 RSP: ffff8801c84feea0 [ 24.391410] ---[ end trace 948cd0b0f702fe7b ]--- [ 24.391413] Kernel panic - not syncing: Fatal exception in interrupt [ 24.413612] Dumping ftrace buffer: [ 24.413615] (ftrace buffer empty) [ 24.413617] Kernel Offset: disabled [ 24.994411] Rebooting in 86400 seconds..