[....] Starting enhanced syslogd: rsyslogd[ 13.965542] audit: type=1400 audit(1513629493.495:5): avc: denied { syslog } for pid=3008 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: [ 20.679916] audit: type=1400 audit(1513629500.209:6): avc: denied { map } for pid=3149 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 'ci-upstream-mmots-kasan-gce-9,10.128.15.221' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program [ 94.610582] audit: type=1400 audit(1513629574.140:7): avc: denied { map } for pid=3166 comm="syzkaller243102" path="/root/syzkaller243102453" 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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 98.471141] kasan: CONFIG_KASAN_INLINE enabled [ 98.475961] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 98.483384] general protection fault: 0000 [#1] SMP KASAN [ 98.488911] Dumping ftrace buffer: [ 98.492423] (ftrace buffer empty) [ 98.496111] Modules linked in: [ 98.499291] CPU: 1 PID: 23 Comm: kworker/1:1 Not tainted 4.15.0-rc2-mm1+ #39 [ 98.506467] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 98.515815] Workqueue: crypto cryptd_queue_worker executing program executing program [ 98.520646] RIP: 0010:crypto_chacha20_crypt+0x537/0xbd0 [ 98.525981] RSP: 0018:ffff8801d9907040 EFLAGS: 00010206 [ 98.531333] RAX: dffffc0000000000 RBX: 00000000e6000000 RCX: ffffffff8226f20b [ 98.538596] RDX: 03fffe2000000000 RSI: ffff8801d9907460 RDI: ffff8801d99070dc [ 98.545862] RBP: ffff8801d9907260 R08: dffffc0000000000 R09: 1ffff1003b320e8f [ 98.553122] R10: ffff8801d9907280 R11: 0000000000000000 R12: 0000000000000000 [ 98.560364] R13: 1ffff10000000001 R14: 0000000000000000 R15: ffff8801c114a340 executing program executing program executing program executing program executing program [ 98.567605] FS: 0000000000000000(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 98.575804] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 98.581931] CR2: 0000000020233fd0 CR3: 0000000006225004 CR4: 00000000001606e0 [ 98.589197] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 98.596467] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 98.603714] Call Trace: [ 98.606293] ? save_stack_trace+0x1a/0x20 [ 98.610441] ? __lock_acquire+0x324e/0x47f0 [ 98.614745] ? check_noncircular+0x20/0x20 executing program [ 98.618969] ? crypto_chacha20_setkey+0xc0/0xc0 [ 98.623641] ? debug_check_no_locks_freed+0x3d0/0x3d0 [ 98.628819] ? find_held_lock+0x39/0x1d0 [ 98.632893] ? lock_downgrade+0x980/0x980 [ 98.637036] ? rcu_read_lock_sched_held+0x108/0x120 [ 98.642080] ? ttwu_do_wakeup+0x523/0x710 [ 98.646219] chacha20_simd+0xe4/0x410 [ 98.649999] ? chacha20_simd+0xe4/0x410 [ 98.653950] ? do_raw_spin_trylock+0x190/0x190 [ 98.658517] ? do_raw_spin_trylock+0x190/0x190 [ 98.663108] ? chacha20_dosimd+0x340/0x340 [ 98.667337] ? trace_hardirqs_off+0xd/0x10 executing program executing program executing program executing program [ 98.671547] ? _raw_spin_unlock_irqrestore+0xa6/0xba [ 98.676621] ? print_usage_bug+0x3f0/0x3f0 [ 98.680842] ? check_noncircular+0x20/0x20 [ 98.685066] cryptd_skcipher_decrypt+0x2de/0x5a0 [ 98.689791] ? cryptd_skcipher_decrypt+0x2de/0x5a0 [ 98.694695] ? cryptd_skcipher_decrypt+0x21/0x5a0 [ 98.699514] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 98.704512] ? cryptd_queue_worker+0x4f/0x1b0 [ 98.709002] cryptd_queue_worker+0xff/0x1b0 [ 98.713327] process_one_work+0xbfd/0x1bc0 [ 98.717564] ? pwq_dec_nr_in_flight+0x450/0x450 executing program executing program executing program [ 98.722215] ? finish_task_switch+0x1d3/0x740 [ 98.726725] ? __sched_text_start+0x8/0x8 [ 98.730898] ? debug_check_no_locks_freed+0x3d0/0x3d0 [ 98.736086] ? check_noncircular+0x20/0x20 [ 98.740316] ? find_held_lock+0x39/0x1d0 [ 98.744401] ? lock_acquire+0x1d5/0x580 [ 98.748375] ? worker_thread+0x4a3/0x1990 [ 98.752518] ? lock_release+0xda0/0xda0 [ 98.756498] ? retint_kernel+0x10/0x10 [ 98.760394] ? do_raw_spin_trylock+0x190/0x190 [ 98.765037] worker_thread+0x223/0x1990 executing program executing program executing program executing program [ 98.769047] ? process_one_work+0x1bc0/0x1bc0 [ 98.773549] ? _raw_spin_unlock_irq+0x27/0x70 [ 98.778029] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 98.783030] ? trace_hardirqs_on+0xd/0x10 [ 98.787162] ? mmdrop+0x18/0x30 [ 98.790440] ? finish_task_switch+0x1f6/0x740 [ 98.794927] ? copy_overflow+0x20/0x20 [ 98.798793] ? __schedule+0x8f3/0x2060 [ 98.802651] ? check_noncircular+0x20/0x20 [ 98.806878] ? find_held_lock+0x39/0x1d0 [ 98.810938] ? find_held_lock+0x39/0x1d0 [ 98.814988] ? lock_downgrade+0x980/0x980 executing program executing program executing program executing program [ 98.819128] ? default_wake_function+0x30/0x50 [ 98.823727] ? __schedule+0x2060/0x2060 [ 98.827682] ? do_wait_intr_irq+0x3e0/0x3e0 [ 98.831991] ? do_raw_spin_trylock+0x190/0x190 [ 98.836574] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 98.841660] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 98.846660] ? trace_hardirqs_on+0xd/0x10 [ 98.850803] ? __kthread_parkme+0x175/0x240 [ 98.855119] kthread+0x37a/0x440 [ 98.858484] ? process_one_work+0x1bc0/0x1bc0 [ 98.862967] ? kthread_stop+0x7b0/0x7b0 [ 98.866928] ret_from_fork+0x24/0x30 executing program [ 98.870639] Code: 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 d6 05 00 00 4c 89 ea 48 b8 00 00 00 00 00 fc ff df 89 9d 7c fe ff ff 48 c1 ea 03 <0f> b6 14 02 4c 89 e8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 [ 98.889905] RIP: crypto_chacha20_crypt+0x537/0xbd0 RSP: ffff8801d9907040 [ 98.896788] ---[ end trace 87996246e3e687b6 ]--- [ 98.903600] Kernel panic - not syncing: Fatal exception [ 98.909391] Dumping ftrace buffer: [ 98.912907] (ftrace buffer empty) [ 98.916585] Kernel Offset: disabled [ 98.920196] Rebooting in 86400 seconds..