[....] Starting enhanced syslogd: rsyslogd[ 10.970825] audit: type=1400 audit(1513845069.823:5): avc: denied { syslog } for pid=2994 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: [ 16.951221] audit: type=1400 audit(1513845075.804:6): 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-mmots-kasan-gce-0,10.128.0.53' (ECDSA) to the list of known hosts. executing program executing program [ 23.107995] audit: type=1400 audit(1513845081.960:7): avc: denied { map } for pid=3149 comm="syzkaller140561" path="/root/syzkaller140561007" 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 [ 23.111142] netlink: 3 bytes leftover after parsing attributes in process `syzkaller140561'. [ 23.111211] netlink: 3 bytes leftover after parsing attributes in process `syzkaller140561'. [ 23.113109] netlink: 3 bytes leftover after parsing attributes in process `syzkaller140561'. [ 23.113139] netlink: 3 bytes leftover after parsing attributes in process `syzkaller140561'. [ 23.113156] kasan: CONFIG_KASAN_INLINE enabled [ 23.113164] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 23.113172] general protection fault: 0000 [#1] SMP KASAN [ 23.113177] Dumping ftrace buffer: [ 23.113180] (ftrace buffer empty) [ 23.113182] Modules linked in: [ 23.113191] CPU: 1 PID: 3149 Comm: syzkaller140561 Not tainted 4.15.0-rc4-mm1+ #47 [ 23.113194] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 23.113207] RIP: 0010:__netlink_ns_capable+0x8b/0x120 [ 23.113210] RSP: 0018:ffff8801c880f348 EFLAGS: 00010206 [ 23.113216] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff8443f900 [ 23.113220] RDX: 000000000000007b RSI: ffffffff86510f40 RDI: 00000000000003d8 [ 23.113223] RBP: ffff8801c880f360 R08: 0000000000000000 R09: 1ffff10039101e4f [ 23.113227] R10: 0000000000000000 R11: 0000000000000001 R12: ffffffff86510f40 [ 23.113230] R13: 000000000000000c R14: 0000000000000004 R15: 0000000000000011 [ 23.113236] FS: 0000000001a1a880(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 23.113239] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 23.113243] CR2: 0000000020151000 CR3: 00000001c9511005 CR4: 00000000001606e0 [ 23.113249] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 23.113253] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 23.113254] Call Trace: [ 23.113263] netlink_ns_capable+0x26/0x30 [ 23.113271] get_target_net+0x9d/0x120 [ 23.113280] rtnl_dump_ifinfo+0x2e5/0xee0 [ 23.113302] ? rtnl_getlink+0x670/0x670 [ 23.113310] ? rcu_read_lock_sched_held+0x108/0x120 [ 23.113319] ? kmem_cache_alloc_node_trace+0x370/0x750 [ 23.113328] ? kasan_unpoison_shadow+0x35/0x50 [ 23.113369] ? wait_for_completion+0x770/0x770 [ 23.113385] netlink_dump+0x48c/0xce0 [ 23.113395] ? netlink_broadcast+0x50/0x50 [ 23.113409] __netlink_dump_start+0x4f0/0x6d0 [ 23.113421] rtnetlink_rcv_msg+0x7f0/0xb10 [ 23.113430] ? validate_linkmsg+0x8e0/0x8e0 [ 23.113436] ? rtnl_getlink+0x670/0x670 [ 23.113445] ? netlink_tap_init_net+0x350/0x350 [ 23.113455] netlink_rcv_skb+0x21e/0x460 [ 23.113462] ? validate_linkmsg+0x8e0/0x8e0 [ 23.113469] ? netlink_ack+0xa10/0xa10 [ 23.113478] ? netlink_skb_destructor+0x1d0/0x1d0 [ 23.113490] rtnetlink_rcv+0x1c/0x20 [ 23.113497] netlink_unicast+0x4be/0x6a0 [ 23.113508] ? netlink_attachskb+0x8a0/0x8a0 [ 23.113520] ? security_netlink_send+0x81/0xb0 [ 23.113529] netlink_sendmsg+0xa4a/0xe60 [ 23.113541] ? netlink_unicast+0x6a0/0x6a0 [ 23.113552] ? security_socket_sendmsg+0x89/0xb0 [ 23.113558] ? netlink_unicast+0x6a0/0x6a0 [ 23.113576] sock_sendmsg+0xca/0x110 [ 23.113584] sock_write_iter+0x31a/0x5d0 [ 23.113602] ? sock_sendmsg+0x110/0x110 [ 23.113618] ? iov_iter_init+0xaf/0x1d0 [ 23.113630] __vfs_write+0x684/0x970 [ 23.113639] ? kernel_read+0x120/0x120 [ 23.113646] ? bpf_fd_pass+0x280/0x280 [ 23.113656] ? _cond_resched+0x14/0x30 [ 23.113667] ? selinux_file_permission+0x82/0x460 [ 23.113680] ? rw_verify_area+0xe5/0x2b0 [ 23.113686] ? __fdget_raw+0x20/0x20 [ 23.113695] vfs_write+0x189/0x510 [ 23.113705] SyS_write+0xef/0x220 [ 23.113710] ? SyS_socket+0x12d/0x1d0 [ 23.113718] ? SyS_read+0x220/0x220 [ 23.113725] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 23.113735] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 23.113747] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 23.113752] RIP: 0033:0x43fd49 [ 23.113755] RSP: 002b:00007ffc7fb92238 EFLAGS: 00000203 ORIG_RAX: 0000000000000001 [ 23.113761] RAX: ffffffffffffffda RBX: ffffffffffffffff RCX: 000000000043fd49 [ 23.113765] RDX: 000000000000001f RSI: 0000000020151000 RDI: 0000000000000005 [ 23.113768] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 23.113771] R10: 0000000000000000 R11: 0000000000000203 R12: 00000000004016b0 [ 23.113775] R13: 0000000000401740 R14: 0000000000000000 R15: 0000000000000000 [ 23.113788] 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 [ 23.113902] RIP: __netlink_ns_capable+0x8b/0x120 RSP: ffff8801c880f348 [ 23.113911] ---[ end trace d7574f6bd3eea534 ]--- [ 23.113914] Kernel panic - not syncing: Fatal exception [ 23.134384] Dumping ftrace buffer: [ 23.134387] (ftrace buffer empty) [ 23.134390] Kernel Offset: disabled [ 23.579105] Rebooting in 86400 seconds..