[....] Starting enhanced syslogd: rsyslogd[ 11.748220] audit: type=1400 audit(1514590770.362:5): avc: denied { syslog } for pid=3042 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: [ 16.365966] audit: type=1400 audit(1514590774.979:6): avc: denied { map } for pid=3181 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 '10.128.15.225' (ECDSA) to the list of known hosts. executing program [ 26.613403] audit: type=1400 audit(1514590785.227:7): avc: denied { map } for pid=3197 comm="syzkaller627078" path="/root/syzkaller627078030" 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 [ 26.618536] IPv6: NLM_F_CREATE should be specified when creating new route [ 26.618611] IPv6: Can't replace route, no match found [ 26.618629] kasan: CONFIG_KASAN_INLINE enabled [ 26.618635] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 26.618643] general protection fault: 0000 [#1] SMP KASAN [ 26.618649] Dumping ftrace buffer: [ 26.618652] (ftrace buffer empty) [ 26.618654] Modules linked in: [ 26.618663] CPU: 0 PID: 3197 Comm: syzkaller627078 Not tainted 4.15.0-rc5+ #241 [ 26.618666] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 26.618680] RIP: 0010:fib6_add+0x736/0x15a0 [ 26.618684] RSP: 0018:ffff8801c773ec00 EFLAGS: 00010202 [ 26.618689] RAX: dffffc0000000000 RBX: 0000000000000020 RCX: ffffffff84794465 [ 26.618693] RDX: 0000000000000004 RSI: ffff8801c7715530 RDI: 0000000000000282 [ 26.618697] RBP: ffff8801c773ef30 R08: 1ffff10038ee7c67 R09: 0000000000000000 [ 26.618701] R10: ffff8801c773edf8 R11: 0000000000000000 R12: 00000000fffffffe [ 26.618704] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000009 [ 26.618709] FS: 00000000009a5880(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 [ 26.618713] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 26.618717] CR2: 00000000204db000 CR3: 00000001c8cc1001 CR4: 00000000001606f0 [ 26.618723] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 26.618727] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 26.618728] Call Trace: [ 26.618745] ? fib6_force_start_gc+0xf0/0xf0 [ 26.618752] ? save_stack+0xa3/0xd0 [ 26.618759] ? save_stack+0x43/0xd0 [ 26.618764] ? kasan_kmalloc+0xad/0xe0 [ 26.618771] ? kmem_cache_alloc_trace+0x136/0x750 [ 26.618778] ? ip6_route_multipath_add+0x98d/0x16c0 [ 26.618783] ? inet6_rtm_newroute+0xdc/0x160 [ 26.618791] ? netlink_rcv_skb+0x21e/0x460 [ 26.618798] ? rtnetlink_rcv+0x1c/0x20 [ 26.618804] ? netlink_unicast+0x4e8/0x6f0 [ 26.618809] ? netlink_sendmsg+0xa4a/0xe60 [ 26.618816] ? sock_sendmsg+0xca/0x110 [ 26.618821] ? sock_write_iter+0x31a/0x5d0 [ 26.618827] ? do_iter_readv_writev+0x525/0x7f0 [ 26.618831] ? do_iter_write+0x154/0x540 [ 26.618836] ? vfs_writev+0x18a/0x340 [ 26.618840] ? do_writev+0xfc/0x2a0 [ 26.618845] ? SyS_writev+0x27/0x30 [ 26.618857] ? entry_SYSCALL_64_fastpath+0x1f/0x96 [ 26.618867] ? check_noncircular+0x20/0x20 [ 26.618875] ? print_irqtrace_events+0x270/0x270 [ 26.618882] ? __lock_is_held+0xb6/0x140 [ 26.618892] ? lock_acquire+0x1d5/0x580 [ 26.618897] ? lock_acquire+0x1d5/0x580 [ 26.618903] ? __ip6_ins_rt+0x56/0x90 [ 26.618910] ? ip6_convert_metrics+0x546/0x700 [ 26.618919] ? lock_release+0xa40/0xa40 [ 26.618926] ? dst_discard+0x50/0x50 [ 26.618937] ? ip6_route_multipath_add+0x98d/0x16c0 [ 26.618943] ? __ip6_ins_rt+0x56/0x90 [ 26.618954] __ip6_ins_rt+0x6c/0x90 [ 26.618964] ip6_route_multipath_add+0xd14/0x16c0 [ 26.618982] ? ip6_route_mpath_notify+0xd0/0xd0 [ 26.618992] ? lwtunnel_valid_encap_type_attr+0x196/0x210 [ 26.619004] ? rtm_to_fib6_config+0xdf0/0x1210 [ 26.619013] ? ip6_dst_gc+0x520/0x520 [ 26.619053] inet6_rtm_newroute+0xdc/0x160 [ 26.619059] ? inet6_rtm_newroute+0xdc/0x160 [ 26.619067] ? ip6_route_multipath_add+0x16c0/0x16c0 [ 26.619092] ? ip6_route_multipath_add+0x16c0/0x16c0 [ 26.619100] rtnetlink_rcv_msg+0x733/0x1020 [ 26.619112] ? validate_linkmsg+0x8e0/0x8e0 [ 26.619121] ? check_noncircular+0x20/0x20 [ 26.619131] ? find_held_lock+0x35/0x1d0 [ 26.619143] ? netlink_lookup+0x5f7/0xa90 [ 26.619150] ? lock_downgrade+0x980/0x980 [ 26.619159] ? find_held_lock+0x35/0x1d0 [ 26.619171] ? ip6_route_multipath_add+0x16c0/0x16c0 [ 26.619176] ? netlink_deliver_tap+0x148/0xcf0 [ 26.619183] ? lock_downgrade+0x980/0x980 [ 26.619192] ? lock_release+0xa40/0xa40 [ 26.619198] ? netlink_lookup+0x620/0xa90 [ 26.619209] ? ip6_route_multipath_add+0x16c0/0x16c0 [ 26.619222] ? netlink_deliver_tap+0x171/0xcf0 [ 26.619233] ? sock_has_perm+0x2a4/0x420 [ 26.619242] netlink_rcv_skb+0x21e/0x460 [ 26.619249] ? validate_linkmsg+0x8e0/0x8e0 [ 26.619256] ? netlink_ack+0xa10/0xa10 [ 26.619265] ? netlink_skb_destructor+0x1d0/0x1d0 [ 26.619278] rtnetlink_rcv+0x1c/0x20 [ 26.619285] netlink_unicast+0x4e8/0x6f0 [ 26.619296] ? netlink_attachskb+0x8a0/0x8a0 [ 26.619307] ? security_netlink_send+0x81/0xb0 [ 26.619316] netlink_sendmsg+0xa4a/0xe60 [ 26.619328] ? netlink_unicast+0x6f0/0x6f0 [ 26.619338] ? security_socket_sendmsg+0x89/0xb0 [ 26.619345] ? netlink_unicast+0x6f0/0x6f0 [ 26.619352] sock_sendmsg+0xca/0x110 [ 26.619360] sock_write_iter+0x31a/0x5d0 [ 26.619368] ? sock_sendmsg+0x110/0x110 [ 26.619381] ? bpf_fd_pass+0x280/0x280 [ 26.619388] ? __might_sleep+0x4c/0x190 [ 26.619397] do_iter_readv_writev+0x525/0x7f0 [ 26.619407] ? vfs_dedupe_file_range+0x8f0/0x8f0 [ 26.619418] ? rw_verify_area+0xe5/0x2b0 [ 26.619427] do_iter_write+0x154/0x540 [ 26.619435] ? dup_iter+0x260/0x260 [ 26.619449] vfs_writev+0x18a/0x340 [ 26.619455] ? __fget_light+0x297/0x380 [ 26.619463] ? vfs_iter_write+0xb0/0xb0 [ 26.619470] ? up_read+0x1a/0x40 [ 26.619478] ? __do_page_fault+0x3d6/0xc90 [ 26.619484] ? get_unused_fd_flags+0x190/0x190 [ 26.619496] ? mm_fault_error+0x2c0/0x2c0 [ 26.619503] ? sock_alloc_file+0x2a6/0x560 [ 26.619512] ? __fdget_pos+0x130/0x190 [ 26.619520] ? __fdget_raw+0x20/0x20 [ 26.619526] ? __alloc_fd+0x750/0x750 [ 26.619533] ? __do_page_fault+0xc90/0xc90 [ 26.619542] do_writev+0xfc/0x2a0 [ 26.619547] ? do_writev+0xfc/0x2a0 [ 26.619556] ? vfs_writev+0x340/0x340 [ 26.619561] ? entry_SYSCALL_64_fastpath+0x5/0x96 [ 26.619569] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 26.619580] SyS_writev+0x27/0x30 [ 26.619587] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 26.619592] RIP: 0033:0x43fcd9 [ 26.619595] RSP: 002b:00007ffc778b2438 EFLAGS: 00000203 ORIG_RAX: 0000000000000014 [ 26.619601] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043fcd9 [ 26.619605] RDX: 0000000000000001 RSI: 00000000200c1000 RDI: 0000000000000003 [ 26.619608] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 26.619612] R10: 0000000000000000 R11: 0000000000000203 R12: 0000000000401640 [ 26.619615] R13: 00000000004016d0 R14: 0000000000000000 R15: 0000000000000000 [ 26.619629] Code: f1 a9 f6 fc e8 2c f2 e2 fc 85 c0 0f 85 d5 03 00 00 49 8d 5e 20 e8 db a9 f6 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 [ 26.619741] RIP: fib6_add+0x736/0x15a0 RSP: ffff8801c773ec00 [ 26.619769] ---[ end trace 6ae18838beccf3fa ]--- [ 26.619772] Kernel panic - not syncing: Fatal exception in interrupt [ 26.639733] Dumping ftrace buffer: [ 26.639736] (ftrace buffer empty) [ 26.639739] Kernel Offset: disabled [ 27.274649] Rebooting in 86400 seconds..