INIT: Entering runlevel: 2 [info] Using makefile-style concurrent boot in runlevel 2. [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added 'ci-upstream-next-kasan-gce-8,10.128.15.192' (ECDSA) to the list of known hosts. 2017/11/24 13:58:08 parsed 1 programs 2017/11/24 13:58:08 executed programs: 0 syzkaller login: [ 43.501662] kasan: CONFIG_KASAN_INLINE enabled [ 43.502533] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 43.503757] general protection fault: 0000 [#1] SMP KASAN [ 43.504490] Dumping ftrace buffer: [ 43.504965] (ftrace buffer empty) [ 43.505460] Modules linked in: [ 43.505893] CPU: 0 PID: 4532 Comm: cryptomgr_test Not tainted 4.14.0-next-20171124+ #51 [ 43.506967] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.508188] task: ffff8801d8e86080 task.stack: ffff8801d9188000 [ 43.508990] RIP: 0010:crypto_remove_spawns+0x58c/0x1260 [ 43.509715] RSP: 0018:ffff8801d918f9e8 EFLAGS: 00010206 [ 43.510424] RAX: 0000000000000003 RBX: dffffc0000000000 RCX: ffffffff8225950b [ 43.511375] RDX: 0000000000000000 RSI: 1ffff1003b231fa6 RDI: 0000000000000018 [ 43.512354] RBP: ffff8801d918fdd8 R08: ffff8801d918fd70 R09: 0000000000000004 [ 43.513316] R10: 0000000000000000 R11: ffffffff8747dd60 R12: 0000000000000000 [ 43.514267] R13: ffff8801d9520060 R14: ffffed003b231f4e R15: ffff8801d918fdb0 [ 43.515218] FS: 0000000000000000(0000) GS:ffff8801db400000(0000) knlGS:0000000000000000 [ 43.516342] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 43.517125] CR2: 00007ffd6f9cdf98 CR3: 00000001c710e000 CR4: 00000000001406f0 [ 43.518078] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 43.519067] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 43.520016] Call Trace: [ 43.520376] ? crypto_register_template+0x230/0x230 [ 43.521041] ? compat_start_thread+0x80/0x80 [ 43.521642] ? do_raw_spin_trylock+0x190/0x190 [ 43.525155] ? _raw_spin_unlock_irq+0x27/0x70 [ 43.529624] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 43.534605] ? trace_hardirqs_on+0xd/0x10 [ 43.538720] ? mmdrop+0x18/0x30 [ 43.541967] ? finish_task_switch+0x1f6/0x740 [ 43.546428] ? copy_overflow+0x20/0x20 [ 43.550288] ? lock_acquire+0x1d5/0x580 [ 43.554228] ? crypto_alg_tested+0xde/0x6f0 [ 43.558516] ? __sched_text_start+0x8/0x8 [ 43.562630] ? lock_release+0xda0/0xda0 [ 43.566570] ? trace_event_raw_event_sched_switch+0x8a0/0x8a0 [ 43.572419] ? find_held_lock+0x39/0x1d0 [ 43.576448] ? rcu_note_context_switch+0x710/0x710 [ 43.581345] ? __might_sleep+0x95/0x190 [ 43.585294] ? down_write+0x87/0x120 [ 43.588973] ? crypto_alg_tested+0xde/0x6f0 [ 43.593260] ? down_read+0x150/0x150 [ 43.596942] ? lock_downgrade+0x980/0x980 [ 43.601055] ? default_wake_function+0x30/0x50 [ 43.605602] crypto_alg_tested+0x514/0x6f0 [ 43.609804] ? crypto_unregister_template+0x6e0/0x6e0 [ 43.614958] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 43.620029] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 43.625012] ? trace_hardirqs_on+0xd/0x10 [ 43.629129] cryptomgr_test+0x17/0x30 [ 43.632895] kthread+0x37a/0x440 [ 43.636227] ? crypto_acomp_scomp_free_ctx+0x100/0x100 [ 43.641476] ? kthread_stop+0x7b0/0x7b0 [ 43.645417] ret_from_fork+0x24/0x30 [ 43.649102] Code: 84 e3 01 00 00 e8 35 89 4a ff 4c 89 e8 48 c1 e8 03 80 3c 18 00 0f 85 d8 09 00 00 4d 8b 65 00 49 8d 7c 24 18 48 89 f8 48 c1 e8 03 <80> 3c 18 00 0f 85 b4 09 00 00 4d 8b 6c 24 18 4c 3b ad 50 fc ff [ 43.668161] RIP: crypto_remove_spawns+0x58c/0x1260 RSP: ffff8801d918f9e8 [ 43.675072] ---[ end trace 96b2da126160a66c ]--- [ 43.680025] Kernel panic - not syncing: Fatal exception [ 43.685700] Dumping ftrace buffer: [ 43.689207] (ftrace buffer empty) [ 43.692888] Kernel Offset: disabled [ 43.696483] Rebooting in 86400 seconds..