[....] Starting enhanced syslogd: rsyslogd[ 10.599308] audit: type=1400 audit(1514064862.903:5): avc: denied { syslog } for pid=2987 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: [ 16.261855] audit: type=1400 audit(1514064868.565:6): avc: denied { map } for pid=3127 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-5,10.128.0.32' (ECDSA) to the list of known hosts. executing program [ 22.418641] audit: type=1400 audit(1514064874.722:7): avc: denied { map } for pid=3141 comm="syzkaller506538" path="/root/syzkaller506538203" 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 [ 22.421072] netlink: 'syzkaller506538': attribute type 5 has an invalid length. [ 22.421216] WARNING: CPU: 1 PID: 3141 at net/netlink/af_netlink.c:2398 netlink_ack+0x625/0xa10 [ 22.421219] Kernel panic - not syncing: panic_on_warn set ... [ 22.421219] [ 22.421224] CPU: 1 PID: 3141 Comm: syzkaller506538 Not tainted 4.15.0-rc4-next-20171221+ #78 [ 22.421227] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 22.421229] Call Trace: [ 22.421236] dump_stack+0x194/0x257 [ 22.421243] ? arch_local_irq_restore+0x53/0x53 [ 22.421254] ? vsnprintf+0x1ed/0x1900 [ 22.421264] panic+0x1e4/0x41c [ 22.421269] ? refcount_error_report+0x214/0x214 [ 22.421276] ? show_regs_print_info+0x18/0x18 [ 22.421283] ? rcu_pm_notify+0xc0/0xc0 [ 22.421291] ? __warn+0x1c1/0x200 [ 22.421299] ? netlink_ack+0x625/0xa10 [ 22.421303] __warn+0x1dc/0x200 [ 22.421308] ? netlink_ack+0x625/0xa10 [ 22.421314] report_bug+0x211/0x2d0 [ 22.421327] fixup_bug.part.11+0x37/0x80 [ 22.421333] do_error_trap+0x2d7/0x3e0 [ 22.421342] ? math_error+0x400/0x400 [ 22.421351] ? __alloc_skb+0x57e/0x780 [ 22.421359] ? skb_copy_and_csum_dev+0x360/0x360 [ 22.421368] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 22.421377] do_invalid_op+0x1b/0x20 [ 22.421383] invalid_op+0x22/0x40 [ 22.421387] RIP: 0010:netlink_ack+0x625/0xa10 [ 22.421389] RSP: 0018:ffff8801c8c37848 EFLAGS: 00010293 [ 22.421394] RAX: ffff8801ca2fa680 RBX: ffff8801d5580400 RCX: ffffffff84454735 [ 22.421397] RDX: 0000000000000000 RSI: ffff8801c9776e50 RDI: ffff8801d55804d0 [ 22.421399] RBP: ffff8801c8c37900 R08: ffffed00393f9108 R09: ffffed00393f9108 [ 22.421402] R10: 000000000000000e R11: ffffed00393f9107 R12: ffff8801c9776ddc [ 22.421405] R13: ffff8801c9fc87c0 R14: ffff8801d5580180 R15: 1ffff10039186f0f [ 22.421417] ? netlink_ack+0x625/0xa10 [ 22.421426] ? netlink_ack+0x625/0xa10 [ 22.421435] ? netlink_sendmsg+0xe60/0xe60 [ 22.421443] ? netlink_tap_init_net+0x350/0x350 [ 22.421453] netlink_rcv_skb+0x369/0x460 [ 22.421459] ? validate_linkmsg+0x8e0/0x8e0 [ 22.421465] ? netlink_ack+0xa10/0xa10 [ 22.421473] ? netlink_skb_destructor+0x1d0/0x1d0 [ 22.421485] rtnetlink_rcv+0x1c/0x20 [ 22.421494] netlink_unicast+0x4be/0x6a0 [ 22.421507] ? netlink_attachskb+0x8a0/0x8a0 [ 22.421524] ? security_netlink_send+0x81/0xb0 [ 22.421535] netlink_sendmsg+0xa4a/0xe60 [ 22.421548] ? netlink_unicast+0x6a0/0x6a0 [ 22.421557] ? security_socket_sendmsg+0x89/0xb0 [ 22.421562] ? netlink_unicast+0x6a0/0x6a0 [ 22.421571] sock_sendmsg+0xca/0x110 [ 22.421578] sock_write_iter+0x31a/0x5d0 [ 22.421586] ? sock_sendmsg+0x110/0x110 [ 22.421603] ? iov_iter_init+0xaf/0x1d0 [ 22.421613] __vfs_write+0x684/0x970 [ 22.421622] ? kernel_read+0x120/0x120 [ 22.421626] ? bpf_fd_pass+0x280/0x280 [ 22.421635] ? _cond_resched+0x14/0x30 [ 22.421645] ? selinux_file_permission+0x82/0x460 [ 22.421659] ? rw_verify_area+0xe5/0x2b0 [ 22.421663] ? __fdget_raw+0x20/0x20 [ 22.421671] vfs_write+0x189/0x510 [ 22.421680] SyS_write+0xef/0x220 [ 22.421688] ? SyS_read+0x220/0x220 [ 22.421694] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 22.421700] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 22.421711] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 22.421715] RIP: 0033:0x43fcd9 [ 22.421717] RSP: 002b:00007ffc4044b158 EFLAGS: 00000217 ORIG_RAX: 0000000000000001 [ 22.421722] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043fcd9 [ 22.421724] RDX: 00000000000001a9 RSI: 0000000020800e57 RDI: 0000000000000003 [ 22.421726] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 22.421729] R10: 0000000000000004 R11: 0000000000000217 R12: 0000000000401640 [ 22.421731] R13: 00000000004016d0 R14: 0000000000000000 R15: 0000000000000000 [ 22.444532] Dumping ftrace buffer: [ 22.444635] (ftrace buffer empty) [ 22.444638] Kernel Offset: disabled [ 22.806135] Rebooting in 86400 seconds..