[....] Starting enhanced syslogd: rsyslogd[ 15.127856] audit: type=1400 audit(1517425091.934:5): avc: denied { syslog } for pid=3914 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: [ 18.660672] audit: type=1400 audit(1517425095.467:6): avc: denied { map } for pid=4054 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 '10.128.0.31' (ECDSA) to the list of known hosts. executing program [ 24.946503] audit: type=1400 audit(1517425101.753:7): avc: denied { map } for pid=4068 comm="syzkaller265170" path="/root/syzkaller265170918" 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 [ 24.949551] BUG: unable to handle kernel paging request at ffffffffffffff6d [ 24.949569] IP: cgroup_mt_destroy_v1+0xe5/0x310 [ 24.949572] PGD 6a25067 P4D 6a25067 PUD 6a27067 PMD 0 [ 24.949584] Oops: 0000 [#1] SMP KASAN [ 24.949590] Dumping ftrace buffer: [ 24.949593] (ftrace buffer empty) [ 24.949595] Modules linked in: [ 24.949603] CPU: 1 PID: 4068 Comm: syzkaller265170 Not tainted 4.15.0-rc9+ #218 [ 24.949607] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 24.949614] RIP: 0010:cgroup_mt_destroy_v1+0xe5/0x310 [ 24.949617] RSP: 0018:ffff8801d311f958 EFLAGS: 00010246 [ 24.949622] RAX: 0000000000000008 RBX: 1ffff1003a623f2b RCX: ffffffff84747626 [ 24.949626] RDX: 0000000000000000 RSI: ffffffff8709b5c0 RDI: ffffffffffffff6d [ 24.949630] RBP: ffff8801d311f9e0 R08: 1ffff1003a623ef9 R09: 0000000000000000 [ 24.949633] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffffffffff01 [ 24.949637] R13: ffff8801d311f9b8 R14: dffffc0000000000 R15: ffffffff84747570 [ 24.949643] FS: 000000000196a880(0000) GS:ffff8801db500000(0000) knlGS:0000000000000000 [ 24.949646] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 24.949650] CR2: ffffffffffffff6d CR3: 00000001d320d003 CR4: 00000000001606e0 [ 24.949657] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 24.949660] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 24.949662] Call Trace: [ 24.949671] ? cgroup_mt_check_v1+0x240/0x240 [ 24.949678] ? free_percpu+0x22e/0x830 [ 24.949688] ? __alloc_percpu+0x30/0x30 [ 24.949697] ? cgroup_mt_check_v1+0x240/0x240 [ 24.949705] cleanup_match+0x14e/0x220 [ 24.949713] ? icmp_checkentry+0x80/0x80 [ 24.949727] cleanup_entry+0xcb/0x350 [ 24.949736] ? cleanup_match+0x220/0x220 [ 24.949748] ? find_next_bit+0x27/0x30 [ 24.949758] __do_replace+0x79d/0xa50 [ 24.949775] ? compat_table_info+0x470/0x470 [ 24.949786] ? kasan_check_write+0x14/0x20 [ 24.949792] ? _copy_from_user+0x99/0x110 [ 24.949802] do_ipt_set_ctl+0x40f/0x5f0 [ 24.949812] ? translate_compat_table+0x1b90/0x1b90 [ 24.949828] ? mutex_unlock+0xd/0x10 [ 24.949835] ? nf_sockopt_find.constprop.0+0x1a7/0x220 [ 24.949844] nf_setsockopt+0x67/0xc0 [ 24.949855] ip_setsockopt+0xa1/0xb0 [ 24.949865] tcp_setsockopt+0x82/0xd0 [ 24.949877] sock_common_setsockopt+0x95/0xd0 [ 24.949888] SyS_setsockopt+0x189/0x360 [ 24.949898] ? SyS_recv+0x40/0x40 [ 24.949907] ? entry_SYSCALL_64_fastpath+0x5/0xa0 [ 24.949927] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 24.949936] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 24.949948] entry_SYSCALL_64_fastpath+0x29/0xa0 [ 24.949952] RIP: 0033:0x4408a9 [ 24.949956] RSP: 002b:00007fff89a74338 EFLAGS: 00000207 ORIG_RAX: 0000000000000036 [ 24.949962] RAX: ffffffffffffffda RBX: ffffffffffffffff RCX: 00000000004408a9 [ 24.949965] RDX: 0000000000000040 RSI: 0000000000000000 RDI: 0000000000000004 [ 24.949969] RBP: faaff2414ccfc19e R08: 00000000000012f0 R09: 0000000000000000 [ 24.949972] R10: 000000002000b000 R11: 0000000000000207 R12: 886f734548d4d66b [ 24.949976] R13: ffffffffffffff01 R14: 0000000000000000 R15: 0000000000000000 [ 24.949990] Code: 6c 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 a6 01 00 00 <41> f6 44 24 6c 01 74 2e e8 de ba fb fc 48 b8 00 00 00 00 00 fc [ 24.950108] RIP: cgroup_mt_destroy_v1+0xe5/0x310 RSP: ffff8801d311f958 [ 24.950110] CR2: ffffffffffffff6d [ 24.950117] ---[ end trace 519cdf5cec36554d ]--- [ 24.950121] Kernel panic - not syncing: Fatal exception [ 24.972892] Dumping ftrace buffer: [ 24.972896] (ftrace buffer empty) [ 24.972899] Kernel Offset: disabled [ 25.316005] Rebooting in 86400 seconds..