INIT: Entering runlevel: 2 [[36minfo[39;49m] Using makefile-style concurrent boot in runlevel 2. [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added 'ci-upstream-net-kasan-gce-8,10.128.0.9' (ECDSA) to the list of known hosts. executing program executing program executing program executing program syzkaller login: [ 35.465452] SELinux: unrecognized netlink message: protocol=6 nlmsg_type=65535 sclass=netlink_xfrm_socket pig=2921 comm=syzkaller860091 [ 35.470572] SELinux: unrecognized netlink message: protocol=6 nlmsg_type=65535 sclass=netlink_xfrm_socket pig=2922 comm=syzkaller860091 [ 35.474171] kasan: CONFIG_KASAN_INLINE enabled [ 35.474847] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 35.475430] SELinux: unrecognized netlink message: protocol=6 nlmsg_type=65535 sclass=netlink_xfrm_socket pig=2923 comm=syzkaller860091 [ 35.477464] general protection fault: 0000 [#1] SMP KASAN [ 35.478235] Dumping ftrace buffer: [ 35.478593] SELinux: unrecognized netlink message: protocol=6 nlmsg_type=65535 sclass=netlink_xfrm_socket pig=2924 comm=syzkaller860091 [ 35.480332] (ftrace buffer empty) [ 35.480828] Modules linked in: [ 35.481260] CPU: 0 PID: 23 Comm: kworker/0:1 Not tainted 4.13.0-rc4+ #2 [ 35.482145] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.483372] Workqueue: events netlink_sock_destruct_work [ 35.484092] task: ffff8801da882600 task.stack: ffff8801da878000 [ 35.484891] RIP: 0010:__list_del_entry_valid+0x7e/0x150 [ 35.485851] RSP: 0018:ffff8801da87f0b8 EFLAGS: 00010246 [ 35.491177] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 35.498412] RDX: 0000000000000000 RSI: ffff8801d198f1a0 RDI: ffff8801d198f1a8 [ 35.505652] RBP: ffff8801da87f0d0 R08: ffffffff8630d808 R09: ffff8801da87ea18 [ 35.512889] R10: ffff8801da87ef98 R11: 1ffff1003b51071b R12: 0000000000000000 [ 35.520124] R13: ffff8801da87f198 R14: ffffffff855864b8 R15: ffff8801d198f1a8 [ 35.527362] FS: 0000000000000000(0000) GS:ffff8801dc000000(0000) knlGS:0000000000000000 [ 35.535551] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 35.541396] CR2: 00007ffe339a7b84 CR3: 00000001d0304000 CR4: 00000000001406f0 [ 35.548631] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 35.555866] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 35.563099] Call Trace: [ 35.565651] ? _raw_spin_lock_bh+0x39/0x40 [ 35.569855] xfrm_policy_walk_done+0xfa/0x310 [ 35.574315] ? xfrm_policy_alloc+0x510/0x510 [ 35.578687] ? wait_for_completion+0x730/0x730 [ 35.583237] ? copy_sec_ctx+0x290/0x290 [ 35.587171] xfrm_dump_policy_done+0x73/0xa0 [ 35.591544] netlink_sock_destruct+0xfa/0x3c0 [ 35.596001] ? __netlink_create+0x270/0x270 [ 35.600289] ? check_noncircular+0x20/0x20 [ 35.604485] ? mutex_unlock+0xd/0x10 [ 35.608165] ? rht_deferred_worker+0x2bf/0x1cd0 [ 35.612798] ? __netlink_create+0x270/0x270 [ 35.617087] __sk_destruct+0xfd/0x910 [ 35.620851] ? check_noncircular+0x20/0x20 [ 35.625049] ? __sk_dst_check+0x380/0x380 [ 35.629162] ? check_noncircular+0x20/0x20 [ 35.633364] ? check_noncircular+0x20/0x20 [ 35.637566] ? lock_acquire+0x1d5/0x580 [ 35.641508] ? lock_acquire+0x1d5/0x580 [ 35.645447] ? process_one_work+0xb32/0x1bc0 [ 35.649821] ? refcount_sub_and_test+0x115/0x1b0 [ 35.654539] ? refcount_inc+0x50/0x50 [ 35.658305] sk_destruct+0x47/0x80 [ 35.661807] __sk_free+0x57/0x230 [ 35.665225] sk_free+0x2a/0x40 [ 35.668383] netlink_sock_destruct_work+0x19/0x20 [ 35.673186] process_one_work+0xbf3/0x1bc0 [ 35.677385] ? _raw_spin_unlock_irq+0x27/0x70 [ 35.681848] ? pwq_dec_nr_in_flight+0x450/0x450 [ 35.686483] ? preempt_notifier_dec+0x20/0x20 [ 35.690947] ? __schedule+0x8f0/0x2070 [ 35.694803] ? check_noncircular+0x20/0x20 [ 35.699000] ? check_noncircular+0x20/0x20 [ 35.703199] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 35.708353] ? check_noncircular+0x20/0x20 [ 35.712557] ? lock_acquire+0x1d5/0x580 [ 35.716493] ? lock_acquire+0x1d5/0x580 [ 35.720431] ? worker_thread+0x4a3/0x1860 [ 35.724540] ? lock_downgrade+0x990/0x990 [ 35.728653] ? lock_release+0xa40/0xa40 [ 35.732589] ? do_raw_spin_trylock+0x190/0x190 [ 35.737137] ? set_next_entity+0x30e/0xe10 [ 35.741340] worker_thread+0x223/0x1860 [ 35.745287] ? process_one_work+0x1bc0/0x1bc0 [ 35.749753] ? _raw_spin_unlock_irq+0x27/0x70 [ 35.754212] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 35.759193] ? trace_hardirqs_on+0xd/0x10 [ 35.763302] ? _raw_spin_unlock_irq+0x27/0x70 [ 35.767760] ? finish_task_switch+0x1d3/0x740 [ 35.772218] ? finish_task_switch+0x1aa/0x740 [ 35.776701] ? preempt_notifier_dec+0x20/0x20 [ 35.781166] ? __schedule+0x8f0/0x2070 [ 35.785021] ? try_to_wake_up+0xf9/0x1600 [ 35.789133] ? migrate_swap_stop+0x970/0x970 [ 35.793514] ? find_held_lock+0x35/0x1d0 [ 35.797546] ? complete+0x62/0x80 [ 35.800964] ? __schedule+0x2070/0x2070 [ 35.804906] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 35.809973] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 35.814950] ? trace_hardirqs_on+0xd/0x10 [ 35.819061] ? __kthread_parkme+0x173/0x240 [ 35.823356] kthread+0x35e/0x430 [ 35.826729] ? process_one_work+0x1bc0/0x1bc0 [ 35.831188] ? kthread_create_on_node+0x100/0x100 [ 35.835994] ret_from_fork+0x2a/0x40 [ 35.839676] Code: 00 00 00 00 ad de 49 39 c4 74 66 48 b8 00 02 00 00 00 00 ad de 48 89 da 48 39 c3 74 65 48 c1 ea 03 48 b8 00 00 00 00 00 fc ff df <80> 3c 02 00 75 7b 48 8b 13 48 39 f2 75 57 49 8d 7c 24 08 48 b8 [ 35.858735] RIP: __list_del_entry_valid+0x7e/0x150 RSP: ffff8801da87f0b8 executing program executing program executing program executing program executing program executing program executing program executing program [ 35.865586] ---[ end trace d2378690210613a6 ]--- [ 35.870331] Kernel panic - not syncing: Fatal exception in interrupt [ 35.870342] SELinux: unrecognized netlink message: protocol=6 nlmsg_type=65535 sclass=netlink_xfrm_socket pig=2925 comm=syzkaller860091 [ 35.873350] SELinux: unrecognized netlink message: protocol=6 nlmsg_type=65535 sclass=netlink_xfrm_socket pig=2926 comm=syzkaller860091 [ 35.876676] SELinux: unrecognized netlink message: protocol=6 nlmsg_type=65535 sclass=netlink_xfrm_socket pig=2927 comm=syzkaller860091 [ 35.879850] SELinux: unrecognized netlink message: protocol=6 nlmsg_type=65535 sclass=netlink_xfrm_socket pig=2928 comm=syzkaller860091 [ 35.881664] SELinux: unrecognized netlink message: protocol=6 nlmsg_type=65535 sclass=netlink_xfrm_socket pig=2929 comm=syzkaller860091 [ 35.883949] SELinux: unrecognized netlink message: protocol=6 nlmsg_type=65535 sclass=netlink_xfrm_socket pig=2930 comm=syzkaller860091 [ 35.950549] Dumping ftrace buffer: [ 35.954068] (ftrace buffer empty) [ 35.957743] Kernel Offset: disabled [ 35.961333] Rebooting in 86400 seconds..