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-net-kasan-gce-7,10.128.15.200' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 32.269099] BUG: unable to handle kernel NULL pointer dereference at 0000000000000286 [ 32.270306] IP: 0x286 [ 32.270673] PGD 0 [ 32.270675] P4D 0 [ 32.271040] [ 32.271561] Oops: 0010 [#1] SMP KASAN [ 32.272070] Dumping ftrace buffer: [ 32.272544] (ftrace buffer empty) [ 32.273039] Modules linked in: [ 32.273471] CPU: 1 PID: 74 Comm: kworker/u4:3 Not tainted 4.13.0-rc5+ #14 [ 32.274378] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.275600] Workqueue: kstrp strp_work [ 32.276136] task: ffff8801d9b24300 task.stack: ffff8801d9b30000 [ 32.276931] RIP: 0010:0x286 [ 32.277343] RSP: 0018:ffff8801d9b37540 EFLAGS: 00010246 [ 32.278063] RAX: dffffc0000000000 RBX: ffff8801d142bd60 RCX: 0000000000000000 [ 32.279015] RDX: 1ffff1003a2857bd RSI: ffffffff85b38e40 RDI: ffff8801d142bc48 [ 32.279967] RBP: ffff8801d9b37558 R08: ffffffff866ae69e R09: 0000000000000000 [ 32.280933] R10: ffff8801d9b37438 R11: 0000000000000001 R12: ffff8801d142bc48 [ 32.281884] R13: ffff8801d9e88418 R14: ffff8801d9b37980 R15: ffff8801d9e88400 [ 32.282847] FS: 0000000000000000(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 32.283948] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 32.284732] CR2: 0000000000000286 CR3: 0000000005a22000 CR4: 00000000001406e0 [ 32.285734] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 32.286702] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 32.287670] Call Trace: [ 32.288041] ? strp_work+0x41/0xf0 [ 32.288520] process_one_work+0xbf3/0x1bc0 [ 32.289087] ? _raw_spin_unlock_irq+0x27/0x70 [ 32.292666] ? pwq_dec_nr_in_flight+0x450/0x450 [ 32.297310] ? preempt_notifier_dec+0x20/0x20 [ 32.301779] ? __schedule+0x8f0/0x2070 [ 32.305637] ? check_noncircular+0x20/0x20 [ 32.309837] ? check_noncircular+0x20/0x20 [ 32.314046] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 32.319198] ? check_noncircular+0x20/0x20 [ 32.323405] ? lock_acquire+0x1d5/0x580 [ 32.327342] ? lock_acquire+0x1d5/0x580 [ 32.331287] ? worker_thread+0x4a3/0x1860 [ 32.335402] ? lock_downgrade+0x990/0x990 [ 32.339518] ? lock_release+0xa40/0xa40 [ 32.343458] ? do_raw_spin_trylock+0x190/0x190 [ 32.348004] ? pr_cont_work+0x130/0x130 [ 32.351949] worker_thread+0x223/0x1860 [ 32.355897] ? process_one_work+0x1bc0/0x1bc0 [ 32.360357] ? _raw_spin_unlock_irq+0x27/0x70 [ 32.364817] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 32.369796] ? trace_hardirqs_on+0xd/0x10 [ 32.373909] ? _raw_spin_unlock_irq+0x27/0x70 [ 32.378370] ? finish_task_switch+0x1d3/0x740 [ 32.382829] ? finish_task_switch+0x1aa/0x740 [ 32.387299] ? preempt_notifier_dec+0x20/0x20 [ 32.391774] ? __schedule+0x8f0/0x2070 [ 32.395633] ? try_to_wake_up+0xf9/0x1600 [ 32.399750] ? migrate_swap_stop+0x970/0x970 [ 32.404125] ? find_held_lock+0x35/0x1d0 [ 32.408161] ? complete+0x62/0x80 [ 32.411585] ? __schedule+0x2070/0x2070 [ 32.415528] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 32.420595] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 32.425575] ? trace_hardirqs_on+0xd/0x10 [ 32.429689] ? __kthread_parkme+0x173/0x240 [ 32.433984] kthread+0x35e/0x430 [ 32.437315] ? process_one_work+0x1bc0/0x1bc0 [ 32.441775] ? kthread_create_on_node+0x100/0x100 [ 32.446583] ret_from_fork+0x2a/0x40 [ 32.450267] Code: Bad RIP value. [ 32.453689] RIP: 0x286 RSP: ffff8801d9b37540 [ 32.458060] CR2: 0000000000000286 [ 32.461481] ---[ end trace b7839fc56809c5d4 ]--- [ 32.466199] Kernel panic - not syncing: Fatal exception [ 32.471563] Dumping ftrace buffer: [ 32.475082] (ftrace buffer empty) [ 32.478758] Kernel Offset: disabled [ 32.482351] Rebooting in 86400 seconds..