[....] Starting enhanced syslogd: rsyslogd[ 16.403941] audit: type=1400 audit(1518457437.373:5): avc: denied { syslog } for pid=4020 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: [ 22.205659] audit: type=1400 audit(1518457443.175:6): avc: denied { map } for pid=4162 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 '10.128.0.46' (ECDSA) to the list of known hosts. executing program [ 28.489376] audit: type=1400 audit(1518457449.459:7): avc: denied { map } for pid=4177 comm="syzkaller497664" path="/root/syzkaller497664348" 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 [ 28.492534] kasan: CONFIG_KASAN_INLINE enabled [ 28.515356] audit: type=1400 audit(1518457449.459:8): avc: denied { map_create } for pid=4177 comm="syzkaller497664" 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 [ 28.520038] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 28.550122] general protection fault: 0000 [#1] SMP KASAN [ 28.555634] Dumping ftrace buffer: [ 28.559145] (ftrace buffer empty) [ 28.562830] Modules linked in: [ 28.565997] CPU: 0 PID: 4177 Comm: syzkaller497664 Not tainted 4.16.0-rc1+ #12 [ 28.573336] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.582672] RIP: 0010:SyS_bpf+0x960/0x4860 [ 28.586874] RSP: 0018:ffff8801b135f778 EFLAGS: 00010246 [ 28.592205] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff817f53df [ 28.599453] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000282 [ 28.606695] RBP: ffff8801b135fe00 R08: 0000000000000000 R09: 0000000000000000 [ 28.613935] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff85ef2ec0 [ 28.621174] R13: ffff8801b135fd58 R14: ffffffffffffffea R15: ffff8801b135fdd8 [ 28.628415] FS: 0000000002346880(0000) GS:ffff8801db400000(0000) knlGS:0000000000000000 [ 28.636619] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 28.642472] CR2: 0000000020efafd4 CR3: 00000001b339b006 CR4: 00000000001606f0 [ 28.649714] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 28.656957] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 28.664197] Call Trace: [ 28.666760] ? lru_cache_add+0x1c7/0x3a0 [ 28.670793] ? bpf_prog_get+0x20/0x20 [ 28.674568] ? mark_held_locks+0xaf/0x100 [ 28.678691] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 28.683679] ? trace_hardirqs_on+0xd/0x10 [ 28.687798] ? find_held_lock+0x35/0x1d0 [ 28.691835] ? __handle_mm_fault+0x2747/0x3ce0 [ 28.696395] ? lock_downgrade+0x980/0x980 [ 28.700513] ? lock_release+0xa40/0xa40 [ 28.704459] ? do_raw_spin_trylock+0x190/0x190 [ 28.709026] ? _raw_spin_unlock+0x22/0x30 [ 28.713157] ? __handle_mm_fault+0x80e/0x3ce0 [ 28.717632] ? __pmd_alloc+0x4e0/0x4e0 [ 28.721495] ? check_noncircular+0x20/0x20 [ 28.725702] ? check_noncircular+0x20/0x20 [ 28.729907] ? find_held_lock+0x35/0x1d0 [ 28.733940] ? handle_mm_fault+0x270/0x970 [ 28.738147] ? find_held_lock+0x35/0x1d0 [ 28.742184] ? __do_page_fault+0x5f7/0xc90 [ 28.746389] ? lock_downgrade+0x980/0x980 [ 28.750517] ? handle_mm_fault+0x43b/0x970 [ 28.754722] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 28.759277] ? vmacache_find+0x5f/0x280 [ 28.763219] ? vmacache_update+0xfe/0x130 [ 28.767339] ? up_read+0x1a/0x40 [ 28.770677] ? __do_page_fault+0x3d6/0xc90 [ 28.774897] ? do_syscall_64+0xb7/0x940 [ 28.778842] ? bpf_prog_get+0x20/0x20 [ 28.782612] do_syscall_64+0x282/0x940 [ 28.786476] ? __do_page_fault+0xc90/0xc90 [ 28.790683] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 28.795410] ? syscall_return_slowpath+0x550/0x550 [ 28.800310] ? syscall_return_slowpath+0x2ac/0x550 [ 28.805216] ? prepare_exit_to_usermode+0x350/0x350 [ 28.810205] ? retint_user+0x18/0x18 [ 28.813890] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 28.818711] entry_SYSCALL_64_after_hwframe+0x26/0x9b [ 28.823873] RIP: 0033:0x43fd49 [ 28.827036] RSP: 002b:00007ffc05a1b908 EFLAGS: 00000217 ORIG_RAX: 0000000000000141 [ 28.834713] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043fd49 [ 28.841956] RDX: 000000000000002c RSI: 0000000020efafd4 RDI: 0000000000000000 [ 28.849195] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 28.856437] R10: 00000000ffffffff R11: 0000000000000217 R12: 0000000000401670 [ 28.863679] R13: 0000000000401700 R14: 0000000000000000 R15: 0000000000000000 [ 28.870925] Code: ff 4c 89 ef ff d3 48 3d 00 f0 ff ff 48 89 c3 0f 87 ad 13 00 00 e8 71 a9 f1 ff 48 89 da 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 58 33 00 00 4c 89 ea 48 b8 00 00 00 00 00 fc [ 28.890181] RIP: SyS_bpf+0x960/0x4860 RSP: ffff8801b135f778 [ 28.895898] ---[ end trace b0bf456e1a3452a7 ]--- [ 28.900660] Kernel panic - not syncing: Fatal exception [ 28.906489] Dumping ftrace buffer: [ 28.910006] (ftrace buffer empty) [ 28.913685] Kernel Offset: disabled [ 28.917280] Rebooting in 86400 seconds..