[....] Starting enhanced syslogd: rsyslogd[ 11.374115] audit: type=1400 audit(1513974433.068:5): avc: denied { syslog } for pid=2990 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: [ 17.456154] audit: type=1400 audit(1513974439.150:6): avc: denied { map } for pid=3130 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-kasan-gce-4,10.128.0.16' (ECDSA) to the list of known hosts. executing program [ 23.694893] audit: type=1400 audit(1513974445.389:7): avc: denied { map } for pid=3143 comm="syzkaller066378" path="/root/syzkaller066378579" 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 [ 23.698185] netlink: 'syzkaller066378': attribute type 5 has an invalid length. [ 23.698406] WARNING: CPU: 1 PID: 3143 at net/netlink/af_netlink.c:2365 netlink_ack+0x625/0xa10 [ 23.698411] Kernel panic - not syncing: panic_on_warn set ... [ 23.698411] [ 23.698418] CPU: 1 PID: 3143 Comm: syzkaller066378 Not tainted 4.15.0-rc4+ #234 [ 23.698422] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 23.698425] Call Trace: [ 23.698436] dump_stack+0x194/0x257 [ 23.698448] ? arch_local_irq_restore+0x53/0x53 [ 23.698463] ? vsnprintf+0x1ed/0x1900 [ 23.698479] panic+0x1e4/0x41c [ 23.698487] ? refcount_error_report+0x214/0x214 [ 23.698496] ? show_regs_print_info+0x18/0x18 [ 23.698507] ? rcu_pm_notify+0xc0/0xc0 [ 23.698519] ? __warn+0x1c1/0x200 [ 23.698532] ? netlink_ack+0x625/0xa10 [ 23.698538] __warn+0x1dc/0x200 [ 23.698546] ? netlink_ack+0x625/0xa10 [ 23.698557] report_bug+0x211/0x2d0 [ 23.698576] fixup_bug.part.11+0x37/0x80 [ 23.698586] do_error_trap+0x2d7/0x3e0 [ 23.698600] ? math_error+0x400/0x400 [ 23.698613] ? __alloc_skb+0x57e/0x780 [ 23.698626] ? skb_copy_and_csum_dev+0x360/0x360 [ 23.698639] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 23.698656] do_invalid_op+0x1b/0x20 [ 23.698668] invalid_op+0x22/0x40 [ 23.698675] RIP: 0010:netlink_ack+0x625/0xa10 [ 23.698679] RSP: 0018:ffff8801c978f848 EFLAGS: 00010293 [ 23.698686] RAX: ffff8801cabf4000 RBX: ffff8801c9c69bc0 RCX: ffffffff84369d25 [ 23.698690] RDX: 0000000000000000 RSI: ffff8801c8e4ce50 RDI: ffff8801c9c69c90 [ 23.698694] RBP: ffff8801c978f900 R08: ffffed003938d558 R09: ffffed003938d558 [ 23.698698] R10: 000000000000000e R11: ffffed003938d557 R12: ffff8801c8e4cddc [ 23.698702] R13: ffff8801c9c6aa40 R14: ffff8801cc16b140 R15: 1ffff100392f1f0f [ 23.698721] ? netlink_ack+0x625/0xa10 [ 23.698737] ? netlink_ack+0x625/0xa10 [ 23.698752] ? netlink_sendmsg+0xe60/0xe60 [ 23.698760] ? netlink_deliver_tap+0x171/0xcf0 [ 23.698775] ? sock_has_perm+0x2a4/0x420 [ 23.698788] netlink_rcv_skb+0x369/0x460 [ 23.698798] ? validate_linkmsg+0x8e0/0x8e0 [ 23.698809] ? netlink_ack+0xa10/0xa10 [ 23.698822] ? netlink_skb_destructor+0x1d0/0x1d0 [ 23.698842] rtnetlink_rcv+0x1c/0x20 [ 23.698850] netlink_unicast+0x4e8/0x6f0 [ 23.698866] ? netlink_attachskb+0x8a0/0x8a0 [ 23.698882] ? security_netlink_send+0x81/0xb0 [ 23.698895] netlink_sendmsg+0xa4a/0xe60 [ 23.698913] ? netlink_unicast+0x6f0/0x6f0 [ 23.698928] ? security_socket_sendmsg+0x89/0xb0 [ 23.698936] ? netlink_unicast+0x6f0/0x6f0 [ 23.698949] sock_sendmsg+0xca/0x110 [ 23.698961] sock_write_iter+0x31a/0x5d0 [ 23.698973] ? sock_sendmsg+0x110/0x110 [ 23.698998] ? iov_iter_init+0xaf/0x1d0 [ 23.699016] __vfs_write+0x684/0x970 [ 23.699029] ? kernel_read+0x120/0x120 [ 23.699035] ? bpf_fd_pass+0x280/0x280 [ 23.699050] ? _cond_resched+0x14/0x30 [ 23.699065] ? selinux_file_permission+0x82/0x460 [ 23.699087] ? rw_verify_area+0xe5/0x2b0 [ 23.699094] ? __fdget_raw+0x20/0x20 [ 23.699106] vfs_write+0x189/0x510 [ 23.699121] SyS_write+0xef/0x220 [ 23.699133] ? SyS_read+0x220/0x220 [ 23.699140] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 23.699150] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 23.699168] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 23.699173] RIP: 0033:0x43fcd9 [ 23.699176] RSP: 002b:00007ffca4ac8d48 EFLAGS: 00000217 ORIG_RAX: 0000000000000001 [ 23.699183] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043fcd9 [ 23.699187] RDX: 00000000000001a9 RSI: 0000000020800e57 RDI: 0000000000000003 [ 23.699191] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 23.699195] R10: 0000000000000004 R11: 0000000000000217 R12: 0000000000401640 [ 23.699198] R13: 00000000004016d0 R14: 0000000000000000 R15: 0000000000000000 [ 23.721190] Dumping ftrace buffer: [ 23.721269] (ftrace buffer empty) [ 23.721272] Kernel Offset: disabled [ 24.085401] Rebooting in 86400 seconds..