[....] Starting enhanced syslogd: rsyslogd[ 12.014801] audit: type=1400 audit(1515595812.148:5): avc: denied { syslog } for pid=3349 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: [ 18.565155] audit: type=1400 audit(1515595818.698:6): avc: denied { map } for pid=3490 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 '10.128.15.214' (ECDSA) to the list of known hosts. executing program [ 24.756615] audit: type=1400 audit(1515595824.890:7): avc: denied { map } for pid=3504 comm="syzkaller076955" path="/root/syzkaller076955047" 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 [ 24.763163] tc_ctl_action: received NO action attribs [ 24.763346] WARNING: CPU: 0 PID: 3504 at net/netlink/af_netlink.c:2398 netlink_ack+0x625/0xa10 [ 24.763351] Kernel panic - not syncing: panic_on_warn set ... [ 24.763351] [ 24.763358] CPU: 0 PID: 3504 Comm: syzkaller076955 Not tainted 4.15.0-rc7-next-20180110+ #93 [ 24.763362] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 24.763364] Call Trace: [ 24.763374] dump_stack+0x194/0x257 [ 24.763387] ? arch_local_irq_restore+0x53/0x53 [ 24.763401] ? vsnprintf+0x1ed/0x1900 [ 24.763417] panic+0x1e4/0x41c [ 24.763425] ? refcount_error_report+0x214/0x214 [ 24.763432] ? show_regs_print_info+0x18/0x18 [ 24.763450] ? __warn+0x1c1/0x200 [ 24.763463] ? netlink_ack+0x625/0xa10 [ 24.763470] __warn+0x1dc/0x200 [ 24.763478] ? netlink_ack+0x625/0xa10 [ 24.763489] report_bug+0x211/0x2d0 [ 24.763505] fixup_bug.part.11+0x37/0x80 [ 24.763514] do_error_trap+0x2d7/0x3e0 [ 24.763527] ? math_error+0x400/0x400 [ 24.763538] ? __alloc_skb+0x57e/0x780 [ 24.763551] ? skb_copy_and_csum_dev+0x370/0x370 [ 24.763564] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 24.763580] do_invalid_op+0x1b/0x20 [ 24.763587] invalid_op+0x22/0x40 [ 24.763593] RIP: 0010:netlink_ack+0x625/0xa10 [ 24.763598] RSP: 0018:ffff8801c0a2f790 EFLAGS: 00010293 [ 24.763604] RAX: ffff8801c1350700 RBX: ffff8801c099ce00 RCX: ffffffff845ba1a5 [ 24.763609] RDX: 0000000000000000 RSI: ffff8801c19f5470 RDI: ffff8801c099ced8 [ 24.763613] RBP: ffff8801c0a2f848 R08: ffffed00390b97a5 R09: ffffed00390b97a5 [ 24.763617] R10: 0000000000000003 R11: ffffed00390b97a4 R12: ffff8801c19f5440 [ 24.763621] R13: ffff8801c85cbd00 R14: ffff8801c099cb80 R15: 1ffff10038145ef8 [ 24.763640] ? netlink_ack+0x625/0xa10 [ 24.763665] ? netlink_sendmsg+0xe60/0xe60 [ 24.763679] ? netlink_tap_init_net+0x350/0x350 [ 24.763694] netlink_rcv_skb+0x375/0x470 [ 24.763702] ? validate_linkmsg+0x8e0/0x8e0 [ 24.763712] ? netlink_ack+0xa10/0xa10 [ 24.763726] ? netlink_skb_destructor+0x1d0/0x1d0 [ 24.763745] rtnetlink_rcv+0x1c/0x20 [ 24.763753] netlink_unicast+0x4c4/0x6b0 [ 24.763770] ? netlink_attachskb+0x8a0/0x8a0 [ 24.763793] netlink_sendmsg+0xa4a/0xe60 [ 24.763812] ? netlink_unicast+0x6b0/0x6b0 [ 24.763827] ? security_socket_sendmsg+0x89/0xb0 [ 24.763835] ? netlink_unicast+0x6b0/0x6b0 [ 24.763847] sock_sendmsg+0xca/0x110 [ 24.763859] ___sys_sendmsg+0x767/0x8b0 [ 24.763874] ? copy_msghdr_from_user+0x590/0x590 [ 24.763912] ? __fget_light+0x297/0x380 [ 24.763922] ? fget_raw+0x20/0x20 [ 24.763932] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 24.763937] ? vmacache_find+0x5f/0x280 [ 24.763956] ? up_read+0x1a/0x40 [ 24.763966] ? __do_page_fault+0x3d6/0xc90 [ 24.763973] ? lock_release+0xa40/0xa40 [ 24.763991] ? __fdget+0x18/0x20 [ 24.764009] __sys_sendmsg+0xe5/0x210 [ 24.764015] ? __sys_sendmsg+0xe5/0x210 [ 24.764026] ? SyS_shutdown+0x290/0x290 [ 24.764037] ? __do_page_fault+0xc90/0xc90 [ 24.764051] ? SyS_setsockopt+0x215/0x360 [ 24.764077] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 24.764093] SyS_sendmsg+0x2d/0x50 [ 24.764104] entry_SYSCALL_64_fastpath+0x29/0xa0 [ 24.764109] RIP: 0033:0x440c39 [ 24.764113] RSP: 002b:00007ffdfe890588 EFLAGS: 00000217 ORIG_RAX: 000000000000002e [ 24.764120] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440c39 [ 24.764124] RDX: 0000000000008800 RSI: 00000000201dcfc8 RDI: 0000000000000003 [ 24.764127] RBP: 00000000006cb018 R08: 0000000000000000 R09: 0000000000000000 [ 24.764131] R10: 0000000000000004 R11: 0000000000000217 R12: 00000000004025a0 [ 24.764135] R13: 0000000000402630 R14: 0000000000000000 R15: 0000000000000000 [ 24.782917] Dumping ftrace buffer: [ 24.782984] (ftrace buffer empty) [ 24.782986] Kernel Offset: disabled [ 25.140711] Rebooting in 86400 seconds..