[....] Starting enhanced syslogd: rsyslogd[ 11.630741] audit: type=1400 audit(1515803176.118:5): avc: denied { syslog } for pid=3355 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 mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] 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: [ 19.396693] audit: type=1400 audit(1515803183.884:6): avc: denied { map } for pid=3495 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 '10.128.0.19' (ECDSA) to the list of known hosts. executing program [ 41.530932] audit: type=1400 audit(1515803206.018:7): avc: denied { map } for pid=3512 comm="syzkaller622362" path="/root/syzkaller622362598" 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 [ 41.556997] audit: type=1400 audit(1515803206.018:8): avc: denied { prog_load } for pid=3512 comm="syzkaller622362" 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 [ 41.580681] divide error: 0000 [#1] SMP KASAN [ 41.580686] Dumping ftrace buffer: [ 41.580691] (ftrace buffer empty) [ 41.580692] Modules linked in: [ 41.580700] CPU: 0 PID: 3512 Comm: syzkaller622362 Not tainted 4.15.0-rc7-mm1+ #54 [ 41.580703] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.580714] RIP: 0010:___bpf_prog_run+0x3cc7/0x6100 [ 41.580716] RSP: 0018:ffff8801bf0ef200 EFLAGS: 00010246 [ 41.580721] RAX: 0000000000000000 RBX: dffffc0000000000 RCX: 0000000000000000 [ 41.580723] RDX: 0000000000000000 RSI: ffffc90000002030 RDI: ffffc90000002049 [ 41.580726] RBP: ffff8801bf0ef308 R08: 1ffff10037e1ddd9 R09: 0000000000000002 [ 41.580728] R10: ffff8801bf0ef388 R11: 0000000000000000 R12: ffff8801bf0ef340 [ 41.580731] R13: ffffc90000002048 R14: ffff8801bf0ef340 R15: 00000000fffffffc [ 41.580735] FS: 000000000110c880(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 [ 41.580737] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 41.580740] CR2: 0000000020fd3000 CR3: 00000001c07e3003 CR4: 00000000001606f0 [ 41.580747] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 41.580749] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 41.580750] Call Trace: [ 41.580759] ? bpf_jit_compile+0x30/0x30 [ 41.580769] ? netlink_lookup+0x5f7/0xa90 [ 41.580778] ? lock_downgrade+0x980/0x980 [ 41.580784] ? sock_sendmsg+0xca/0x110 [ 41.580792] ? selinux_socket_sock_rcv_skb+0x24e/0x850 [ 41.580799] __bpf_prog_run160+0xde/0x150 [ 41.580804] ? __bpf_prog_run192+0x150/0x150 [ 41.580810] ? lock_acquire+0x1d5/0x580 [ 41.580814] ? lock_acquire+0x1d5/0x580 [ 41.580822] ? lock_release+0xa40/0xa40 [ 41.580828] ? __lock_is_held+0xb6/0x140 [ 41.580841] sk_filter_trim_cap+0x33c/0x9c0 [ 41.580848] ? sk_skb_is_valid_access+0x140/0x140 [ 41.580855] ? netlink_skb_destructor+0x1d0/0x1d0 [ 41.580861] ? rtnl_fill_vf+0x480/0x480 [ 41.580868] netlink_unicast+0x1b8/0x6b0 [ 41.580871] ? lock_release+0xa40/0xa40 [ 41.580878] ? netlink_attachskb+0x8a0/0x8a0 [ 41.580887] rtnl_stats_get+0x7bb/0xa10 [ 41.580896] ? rtnl_fill_statsinfo.isra.22.constprop.29+0x1cc0/0x1cc0 [ 41.580903] ? rtnl_get_link+0x124/0x2b0 [ 41.580907] ? rtnl_dump_all+0x460/0x460 [ 41.580911] ? lock_release+0xa40/0xa40 [ 41.580917] ? __lock_is_held+0xb6/0x140 [ 41.580925] rtnetlink_rcv_msg+0x57f/0xb10 [ 41.580930] ? rtnl_fill_statsinfo.isra.22.constprop.29+0x1cc0/0x1cc0 [ 41.580934] ? validate_linkmsg+0x8e0/0x8e0 [ 41.580943] ? __might_fault+0x110/0x1d0 [ 41.580948] ? netlink_tap_init_net+0x350/0x350 [ 41.580955] netlink_rcv_skb+0x224/0x470 [ 41.580959] ? validate_linkmsg+0x8e0/0x8e0 [ 41.580964] ? netlink_ack+0xa10/0xa10 [ 41.580970] ? netlink_skb_destructor+0x1d0/0x1d0 [ 41.580978] rtnetlink_rcv+0x1c/0x20 [ 41.580982] netlink_unicast+0x4c4/0x6b0 [ 41.580989] ? netlink_attachskb+0x8a0/0x8a0 [ 41.580998] ? security_netlink_send+0x81/0xb0 [ 41.581007] netlink_sendmsg+0xa4a/0xe60 [ 41.581015] ? netlink_unicast+0x6b0/0x6b0 [ 41.581022] ? security_socket_sendmsg+0x89/0xb0 [ 41.581026] ? netlink_unicast+0x6b0/0x6b0 [ 41.581031] sock_sendmsg+0xca/0x110 [ 41.581037] sock_write_iter+0x31a/0x5d0 [ 41.581042] ? sock_sendmsg+0x110/0x110 [ 41.581055] ? iov_iter_init+0xaf/0x1d0 [ 41.581063] __vfs_write+0x684/0x970 [ 41.581069] ? kernel_read+0x120/0x120 [ 41.581072] ? bpf_fd_pass+0x280/0x280 [ 41.581082] ? _cond_resched+0x14/0x30 [ 41.581089] ? selinux_file_permission+0x82/0x460 [ 41.581097] ? rw_verify_area+0xe5/0x2b0 [ 41.581103] ? __fdget_raw+0x20/0x20 [ 41.581108] vfs_write+0x189/0x510 [ 41.581114] SyS_write+0xef/0x220 [ 41.581120] ? SyS_read+0x220/0x220 [ 41.581124] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 41.581132] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 41.581141] entry_SYSCALL_64_fastpath+0x29/0xa0 [ 41.581144] RIP: 0033:0x43ffc9 [ 41.581146] RSP: 002b:00007ffd01070d48 EFLAGS: 00000217 ORIG_RAX: 0000000000000001 [ 41.581150] RAX: ffffffffffffffda RBX: ffffffffffffffff RCX: 000000000043ffc9 [ 41.581152] RDX: 0000000000000026 RSI: 0000000020fd3000 RDI: 0000000000000004 [ 41.581154] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 41.581156] R10: 0000000000000004 R11: 0000000000000217 R12: 0000000000401930 [ 41.581158] R13: 00000000004019c0 R14: 0000000000000000 R15: 0000000000000000 [ 41.581168] 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 [ 41.581239] RIP: ___bpf_prog_run+0x3cc7/0x6100 RSP: ffff8801bf0ef200 [ 41.581279] ---[ end trace 84f0ff7bda4fad7c ]--- [ 41.581282] Kernel panic - not syncing: Fatal exception [ 41.585585] Dumping ftrace buffer: [ 41.585588] (ftrace buffer empty) [ 41.585590] Kernel Offset: disabled [ 42.038514] Rebooting in 86400 seconds..