[....] Starting enhanced syslogd: rsyslogd[ 12.143790] audit: type=1400 audit(1515804061.155:5): avc: denied { syslog } for pid=3344 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: [ 18.700622] audit: type=1400 audit(1515804067.712:6): avc: denied { map } for pid=3484 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 '10.128.15.197' (ECDSA) to the list of known hosts. executing program [ 45.286772] audit: type=1400 audit(1515804094.298:7): avc: denied { map } for pid=3501 comm="syzkaller702501" path="/root/syzkaller702501536" 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 [ 45.313615] audit: type=1400 audit(1515804094.304:8): avc: denied { prog_load } for pid=3501 comm="syzkaller702501" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=bpf permissive=1 [ 45.314569] divide error: 0000 [#1] SMP KASAN [ 45.314575] Dumping ftrace buffer: [ 45.314578] (ftrace buffer empty) [ 45.314580] Modules linked in: [ 45.314586] CPU: 0 PID: 3501 Comm: syzkaller702501 Not tainted 4.15.0-rc7+ #185 [ 45.314588] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 45.314598] RIP: 0010:___bpf_prog_run+0x3cc7/0x6100 [ 45.314600] RSP: 0018:ffff8801c7927200 EFLAGS: 00010246 [ 45.314604] RAX: 0000000000000000 RBX: dffffc0000000000 RCX: 0000000000000000 [ 45.314606] RDX: 0000000000000000 RSI: ffffc90000002030 RDI: ffffc90000002049 [ 45.314609] RBP: ffff8801c7927308 R08: 1ffff10038f24dd9 R09: 0000000000000002 [ 45.314611] R10: ffff8801c7927388 R11: 0000000000000000 R12: ffff8801c7927340 [ 45.314613] R13: ffffc90000002048 R14: ffff8801c7927340 R15: 00000000fffffffc [ 45.314617] FS: 0000000002255880(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 [ 45.314619] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 45.314622] CR2: 0000000020fd3000 CR3: 00000001c2284004 CR4: 00000000001606f0 [ 45.314627] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 45.314630] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 45.314631] Call Trace: [ 45.314640] ? bpf_jit_compile+0x30/0x30 [ 45.314648] ? netlink_lookup+0x5f7/0xa90 [ 45.314656] ? lock_downgrade+0x980/0x980 [ 45.314661] ? sock_sendmsg+0xca/0x110 [ 45.314668] ? selinux_socket_sock_rcv_skb+0x24e/0x850 [ 45.314675] __bpf_prog_run160+0xde/0x150 [ 45.314680] ? __bpf_prog_run192+0x150/0x150 [ 45.314687] ? lock_acquire+0x1d5/0x580 [ 45.314690] ? lock_acquire+0x1d5/0x580 [ 45.314698] ? lock_release+0xa40/0xa40 [ 45.314703] ? __lock_is_held+0xb6/0x140 [ 45.314715] sk_filter_trim_cap+0x33c/0x9c0 [ 45.314722] ? sk_skb_is_valid_access+0x140/0x140 [ 45.314729] ? netlink_skb_destructor+0x1d0/0x1d0 [ 45.314734] ? rtnl_fill_vf+0x480/0x480 [ 45.314741] netlink_unicast+0x1b8/0x6b0 [ 45.314744] ? lock_release+0xa40/0xa40 [ 45.314751] ? netlink_attachskb+0x8a0/0x8a0 [ 45.314760] rtnl_stats_get+0x7bb/0xa10 [ 45.314768] ? rtnl_fill_statsinfo.isra.22.constprop.29+0x1cc0/0x1cc0 [ 45.314776] ? rtnl_get_link+0x124/0x2b0 [ 45.314780] ? rtnl_dump_all+0x460/0x460 [ 45.314784] ? lock_release+0xa40/0xa40 [ 45.314790] ? __lock_is_held+0xb6/0x140 [ 45.314797] rtnetlink_rcv_msg+0x57f/0xb10 [ 45.314802] ? rtnl_fill_statsinfo.isra.22.constprop.29+0x1cc0/0x1cc0 [ 45.314806] ? validate_linkmsg+0x8e0/0x8e0 [ 45.314814] ? __might_fault+0x110/0x1d0 [ 45.314819] ? netlink_tap_init_net+0x350/0x350 [ 45.314826] netlink_rcv_skb+0x224/0x470 [ 45.314829] ? validate_linkmsg+0x8e0/0x8e0 [ 45.314834] ? netlink_ack+0xa10/0xa10 [ 45.314840] ? netlink_skb_destructor+0x1d0/0x1d0 [ 45.314848] rtnetlink_rcv+0x1c/0x20 [ 45.314852] netlink_unicast+0x4c4/0x6b0 [ 45.314859] ? netlink_attachskb+0x8a0/0x8a0 [ 45.314866] ? security_netlink_send+0x81/0xb0 [ 45.314873] netlink_sendmsg+0xa4a/0xe60 [ 45.314881] ? netlink_unicast+0x6b0/0x6b0 [ 45.314887] ? security_socket_sendmsg+0x89/0xb0 [ 45.314891] ? netlink_unicast+0x6b0/0x6b0 [ 45.314896] sock_sendmsg+0xca/0x110 [ 45.314901] sock_write_iter+0x31a/0x5d0 [ 45.314906] ? sock_sendmsg+0x110/0x110 [ 45.314918] ? iov_iter_init+0xaf/0x1d0 [ 45.314926] __vfs_write+0x684/0x970 [ 45.314933] ? kernel_read+0x120/0x120 [ 45.314937] ? bpf_fd_pass+0x280/0x280 [ 45.314944] ? _cond_resched+0x14/0x30 [ 45.314950] ? selinux_file_permission+0x82/0x460 [ 45.314959] ? rw_verify_area+0xe5/0x2b0 [ 45.314963] ? __fdget_raw+0x20/0x20 [ 45.314969] vfs_write+0x189/0x510 [ 45.314975] SyS_write+0xef/0x220 [ 45.314981] ? SyS_read+0x220/0x220 [ 45.314985] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 45.314991] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 45.314998] entry_SYSCALL_64_fastpath+0x23/0x9a [ 45.315005] RIP: 0033:0x43ffc9 [ 45.315007] RSP: 002b:00007ffe602ec9f8 EFLAGS: 00000217 ORIG_RAX: 0000000000000001 [ 45.315011] RAX: ffffffffffffffda RBX: ffffffffffffffff RCX: 000000000043ffc9 [ 45.315013] RDX: 0000000000000026 RSI: 0000000020fd3000 RDI: 0000000000000004 [ 45.315015] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 45.315018] R10: 0000000000000004 R11: 0000000000000217 R12: 0000000000401930 [ 45.315020] R13: 00000000004019c0 R14: 0000000000000000 R15: 0000000000000000 [ 45.315028] Code: 89 85 58 ff ff ff 41 0f b6 55 01 c0 ea 04 0f b6 d2 4d 8d 34 d4 4c 89 f2 48 c1 ea 03 80 3c 1a 00 0f 85 ee 1e 00 00 41 8b 0e 31 d2 <48> f7 f1 48 89 85 58 ff ff ff 41 0f b6 45 01 83 e0 0f 4d 8d 34 [ 45.315098] RIP: ___bpf_prog_run+0x3cc7/0x6100 RSP: ffff8801c7927200 [ 45.315123] ---[ end trace 274313e5f69f4eff ]--- [ 45.315126] Kernel panic - not syncing: Fatal exception [ 45.336916] Dumping ftrace buffer: [ 45.336920] (ftrace buffer empty) [ 45.336922] Kernel Offset: disabled [ 45.793337] Rebooting in 86400 seconds..