[....] Starting enhanced syslogd: rsyslogd[ 11.623988] audit: type=1400 audit(1513894793.621:5): avc: denied { syslog } for pid=2996 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 file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?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: [ 16.910432] audit: type=1400 audit(1513894798.908:6): avc: denied { map } for pid=3135 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 'ci-upstream-next-kasan-gce-6,10.128.0.45' (ECDSA) to the list of known hosts. executing program executing program [ 23.128123] audit: type=1400 audit(1513894805.125:7): avc: denied { map } for pid=3149 comm="syzkaller526140" path="/root/syzkaller526140270" 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 [ 23.131623] netlink: 3 bytes leftover after parsing attributes in process `syzkaller526140'. [ 23.131703] netlink: 3 bytes leftover after parsing attributes in process `syzkaller526140'. [ 23.135354] netlink: 3 bytes leftover after parsing attributes in process `syzkaller526140'. [ 23.135388] netlink: 3 bytes leftover after parsing attributes in process `syzkaller526140'. [ 23.135409] kasan: CONFIG_KASAN_INLINE enabled [ 23.135416] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 23.135424] general protection fault: 0000 [#1] SMP KASAN [ 23.135429] Dumping ftrace buffer: [ 23.135433] (ftrace buffer empty) [ 23.135435] Modules linked in: [ 23.135446] CPU: 0 PID: 3149 Comm: syzkaller526140 Not tainted 4.15.0-rc4-next-20171221+ #78 [ 23.135449] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 23.135464] RIP: 0010:__netlink_ns_capable+0x8b/0x120 [ 23.135468] RSP: 0018:ffff8801c802f348 EFLAGS: 00010206 [ 23.135473] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff84442500 [ 23.135477] RDX: 000000000000007b RSI: ffffffff86510ee0 RDI: 00000000000003d8 [ 23.135481] RBP: ffff8801c802f360 R08: 0000000000000000 R09: 1ffff10039005e3f [ 23.135484] R10: 0000000000000000 R11: 0000000000000001 R12: ffffffff86510ee0 [ 23.135488] R13: 000000000000000c R14: 0000000000000004 R15: 0000000000000011 [ 23.135493] FS: 000000000199a880(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 [ 23.135502] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 23.135505] CR2: 0000000020151000 CR3: 00000001c988f002 CR4: 00000000001606f0 [ 23.135512] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 23.135515] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 23.135517] Call Trace: [ 23.135526] netlink_ns_capable+0x26/0x30 [ 23.135536] get_target_net+0x9d/0x120 [ 23.135544] rtnl_dump_ifinfo+0x2e5/0xee0 [ 23.135562] ? rtnl_getlink+0x670/0x670 [ 23.135570] ? rcu_read_lock_sched_held+0x108/0x120 [ 23.135580] ? kmem_cache_alloc_node_trace+0x370/0x750 [ 23.135589] ? kasan_unpoison_shadow+0x35/0x50 [ 23.135631] ? wait_for_completion+0x770/0x770 [ 23.135646] netlink_dump+0x48c/0xce0 [ 23.135657] ? netlink_broadcast+0x50/0x50 [ 23.135671] __netlink_dump_start+0x4f0/0x6d0 [ 23.135683] rtnetlink_rcv_msg+0x7f0/0xb10 [ 23.135692] ? validate_linkmsg+0x8e0/0x8e0 [ 23.135698] ? rtnl_getlink+0x670/0x670 [ 23.135708] ? netlink_tap_init_net+0x350/0x350 [ 23.135718] netlink_rcv_skb+0x21e/0x460 [ 23.135724] ? validate_linkmsg+0x8e0/0x8e0 [ 23.135731] ? netlink_ack+0xa10/0xa10 [ 23.135740] ? netlink_skb_destructor+0x1d0/0x1d0 [ 23.135753] rtnetlink_rcv+0x1c/0x20 [ 23.135759] netlink_unicast+0x4be/0x6a0 [ 23.135770] ? netlink_attachskb+0x8a0/0x8a0 [ 23.135783] ? security_netlink_send+0x81/0xb0 [ 23.135792] netlink_sendmsg+0xa4a/0xe60 [ 23.135804] ? netlink_unicast+0x6a0/0x6a0 [ 23.135814] ? security_socket_sendmsg+0x89/0xb0 [ 23.135821] ? netlink_unicast+0x6a0/0x6a0 [ 23.135830] sock_sendmsg+0xca/0x110 [ 23.135839] sock_write_iter+0x31a/0x5d0 [ 23.135847] ? sock_sendmsg+0x110/0x110 [ 23.135863] ? iov_iter_init+0xaf/0x1d0 [ 23.135874] __vfs_write+0x684/0x970 [ 23.135883] ? kernel_read+0x120/0x120 [ 23.135889] ? bpf_fd_pass+0x280/0x280 [ 23.135898] ? _cond_resched+0x14/0x30 [ 23.135909] ? selinux_file_permission+0x82/0x460 [ 23.135922] ? rw_verify_area+0xe5/0x2b0 [ 23.135928] ? __fdget_raw+0x20/0x20 [ 23.135937] vfs_write+0x189/0x510 [ 23.135947] SyS_write+0xef/0x220 [ 23.135953] ? SyS_socket+0x12d/0x1d0 [ 23.135961] ? SyS_read+0x220/0x220 [ 23.135968] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 23.135977] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 23.135990] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 23.135994] RIP: 0033:0x43fd49 [ 23.135998] RSP: 002b:00007ffdde53d598 EFLAGS: 00000203 ORIG_RAX: 0000000000000001 [ 23.136007] RAX: ffffffffffffffda RBX: ffffffffffffffff RCX: 000000000043fd49 [ 23.136011] RDX: 000000000000001f RSI: 0000000020151000 RDI: 0000000000000005 [ 23.136014] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 23.136018] R10: 0000000000000000 R11: 0000000000000203 R12: 00000000004016b0 [ 23.136021] R13: 0000000000401740 R14: 0000000000000000 R15: 0000000000000000 [ 23.136035] Code: fa 48 c1 ea 03 80 3c 02 00 0f 85 95 00 00 00 48 8b 5b 18 48 b8 00 00 00 00 00 fc ff df 48 8d bb d8 03 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 80 00 00 00 48 8b 9b d8 03 00 00 48 b8 00 00 [ 23.136149] RIP: __netlink_ns_capable+0x8b/0x120 RSP: ffff8801c802f348 [ 23.136184] ---[ end trace 03cda37b0da3d74f ]--- [ 23.136188] Kernel panic - not syncing: Fatal exception [ 23.155022] Dumping ftrace buffer: [ 23.155025] (ftrace buffer empty) [ 23.155028] Kernel Offset: disabled [ 23.603449] Rebooting in 86400 seconds..