[....] Starting enhanced syslogd: rsyslogd[ 10.372973] audit: type=1400 audit(1513972444.635:5): 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: [ 15.554226] audit: type=1400 audit(1513972449.817:6): avc: denied { map } for pid=3132 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-6,10.128.0.63' (ECDSA) to the list of known hosts. executing program [ 21.729565] audit: type=1400 audit(1513972455.992:7): avc: denied { map } for pid=3146 comm="syzkaller590053" path="/root/syzkaller590053346" 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 [ 21.732044] netlink: 'syzkaller590053': attribute type 5 has an invalid length. [ 21.732184] WARNING: CPU: 1 PID: 3146 at net/netlink/af_netlink.c:2398 netlink_ack+0x625/0xa10 [ 21.732187] Kernel panic - not syncing: panic_on_warn set ... [ 21.732187] [ 21.732192] CPU: 1 PID: 3146 Comm: syzkaller590053 Not tainted 4.15.0-rc4-mm1+ #49 [ 21.732195] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 21.732197] Call Trace: [ 21.732204] dump_stack+0x194/0x257 [ 21.732212] ? arch_local_irq_restore+0x53/0x53 [ 21.732222] ? vsnprintf+0x1ed/0x1900 [ 21.732232] panic+0x1e4/0x41c [ 21.732238] ? refcount_error_report+0x214/0x214 [ 21.732244] ? show_regs_print_info+0x18/0x18 [ 21.732252] ? rcu_pm_notify+0xc0/0xc0 [ 21.732260] ? __warn+0x1c1/0x200 [ 21.732268] ? netlink_ack+0x625/0xa10 [ 21.732272] __warn+0x1dc/0x200 [ 21.732276] ? netlink_ack+0x625/0xa10 [ 21.732283] report_bug+0x211/0x2d0 [ 21.732296] fixup_bug.part.11+0x37/0x80 [ 21.732302] do_error_trap+0x2d7/0x3e0 [ 21.732311] ? math_error+0x400/0x400 [ 21.732320] ? __alloc_skb+0x57e/0x780 [ 21.732328] ? skb_copy_and_csum_dev+0x360/0x360 [ 21.732337] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 21.732347] do_invalid_op+0x1b/0x20 [ 21.732352] invalid_op+0x22/0x40 [ 21.732356] RIP: 0010:netlink_ack+0x625/0xa10 [ 21.732359] RSP: 0018:ffff8801c9687848 EFLAGS: 00010293 [ 21.732363] RAX: ffff8801cba32280 RBX: ffff8801cbe876c0 RCX: ffffffff84456735 [ 21.732366] RDX: 0000000000000000 RSI: ffff8801c9691b90 RDI: ffff8801cbe87790 [ 21.732369] RBP: ffff8801c9687900 R08: ffffed0039356360 R09: ffffed0039356360 [ 21.732372] R10: 000000000000000e R11: ffffed003935635f R12: ffff8801c9691b1c [ 21.732374] R13: ffff8801c9ab1a80 R14: ffff8801cbe87440 R15: 1ffff100392d0f0f [ 21.732386] ? netlink_ack+0x625/0xa10 [ 21.732395] ? netlink_ack+0x625/0xa10 [ 21.732405] ? netlink_sendmsg+0xe60/0xe60 [ 21.732412] ? netlink_tap_init_net+0x350/0x350 [ 21.732422] netlink_rcv_skb+0x369/0x460 [ 21.732428] ? validate_linkmsg+0x8e0/0x8e0 [ 21.732435] ? netlink_ack+0xa10/0xa10 [ 21.732443] ? netlink_skb_destructor+0x1d0/0x1d0 [ 21.732455] rtnetlink_rcv+0x1c/0x20 [ 21.732460] netlink_unicast+0x4be/0x6a0 [ 21.732470] ? netlink_attachskb+0x8a0/0x8a0 [ 21.732481] ? security_netlink_send+0x81/0xb0 [ 21.732489] netlink_sendmsg+0xa4a/0xe60 [ 21.732500] ? netlink_unicast+0x6a0/0x6a0 [ 21.732509] ? security_socket_sendmsg+0x89/0xb0 [ 21.732514] ? netlink_unicast+0x6a0/0x6a0 [ 21.732521] sock_sendmsg+0xca/0x110 [ 21.732529] sock_write_iter+0x31a/0x5d0 [ 21.732536] ? sock_sendmsg+0x110/0x110 [ 21.732552] ? iov_iter_init+0xaf/0x1d0 [ 21.732562] __vfs_write+0x684/0x970 [ 21.732571] ? kernel_read+0x120/0x120 [ 21.732575] ? bpf_fd_pass+0x280/0x280 [ 21.732585] ? _cond_resched+0x14/0x30 [ 21.732595] ? selinux_file_permission+0x82/0x460 [ 21.732609] ? rw_verify_area+0xe5/0x2b0 [ 21.732613] ? __fdget_raw+0x20/0x20 [ 21.732621] vfs_write+0x189/0x510 [ 21.732630] SyS_write+0xef/0x220 [ 21.732638] ? SyS_read+0x220/0x220 [ 21.732643] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 21.732649] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 21.732660] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 21.732664] RIP: 0033:0x43fcd9 [ 21.732666] RSP: 002b:00007ffe42073c78 EFLAGS: 00000217 ORIG_RAX: 0000000000000001 [ 21.732670] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043fcd9 [ 21.732673] RDX: 00000000000001a9 RSI: 0000000020800e57 RDI: 0000000000000003 [ 21.732675] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 21.732677] R10: 0000000000000004 R11: 0000000000000217 R12: 0000000000401640 [ 21.732679] R13: 00000000004016d0 R14: 0000000000000000 R15: 0000000000000000 [ 21.755452] Dumping ftrace buffer: [ 21.755557] (ftrace buffer empty) [ 21.755560] Kernel Offset: disabled [ 22.115917] Rebooting in 86400 seconds..