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-mmots-kasan-gce-6,10.128.15.193' (ECDSA) to the list of known hosts. net.ipv6.conf.syz0.accept_dad = 0 net.ipv6.conf.syz0.router_solicitations = 0 executing program syzkaller login: [ 42.888793] SELinux: unrecognized netlink message: protocol=6 nlmsg_type=65535 sclass=netlink_xfrm_socket pig=2985 comm=syzkaller625405 [ 42.906595] kasan: CONFIG_KASAN_INLINE enabled [ 42.911235] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 42.918628] general protection fault: 0000 [#1] SMP KASAN [ 42.924309] Dumping ftrace buffer: [ 42.927812] (ftrace buffer empty) [ 42.931490] Modules linked in: [ 42.934653] CPU: 1 PID: 24 Comm: kworker/1:1 Not tainted 4.13.0-mm1+ #7 [ 42.941367] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.950703] Workqueue: events netlink_sock_destruct_work [ 42.956120] task: ffff8801d98ec000 task.stack: ffff8801d98f0000 [ 42.962158] RIP: 0010:__list_del_entry_valid+0x7e/0x150 [ 42.967483] RSP: 0018:ffff8801d98f7098 EFLAGS: 00010246 [ 42.972808] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 42.980045] RDX: 0000000000000000 RSI: ffff8801cd455b28 RDI: ffff8801cd455b30 [ 42.987293] RBP: ffff8801d98f70b0 R08: ffff8801d98f6a10 R09: ffff8801d98f6a08 [ 42.994531] R10: ffff8801d98f6980 R11: 1ffff1003b31da93 R12: 0000000000000000 [ 43.001776] R13: ffff8801d98f7178 R14: ffffffff86066700 R15: ffff8801cd455b30 [ 43.009014] FS: 0000000000000000(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 43.017206] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 43.023055] CR2: 00000000006d00a8 CR3: 00000001ce4b5000 CR4: 00000000001406e0 [ 43.030295] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 43.037541] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 43.044785] Call Trace: [ 43.047344] ? _raw_spin_lock_bh+0x39/0x40 [ 43.051549] xfrm_policy_walk_done+0xfa/0x310 [ 43.056011] ? xfrm_audit_policy_add+0x1f0/0x1f0 [ 43.060738] ? debug_check_no_locks_freed+0x3d0/0x3d0 [ 43.065897] ? unwind_next_frame.part.6+0x1ae/0xc70 [ 43.070884] ? copy_sec_ctx+0x290/0x290 [ 43.074824] xfrm_dump_policy_done+0x73/0xa0 [ 43.079204] netlink_sock_destruct+0xfa/0x3c0 [ 43.083665] ? __netlink_create+0x270/0x270 [ 43.087951] ? unwind_dump+0x4c0/0x4c0 [ 43.091809] ? check_noncircular+0x20/0x20 [ 43.096017] ? __netlink_create+0x270/0x270 [ 43.100310] __sk_destruct+0xfd/0x910 [ 43.104080] ? unwind_next_frame+0x3e/0x50 [ 43.108290] ? sock_rfree+0x160/0x160 [ 43.112062] ? find_held_lock+0x39/0x1d0 [ 43.116095] ? check_noncircular+0x20/0x20 [ 43.120294] ? find_held_lock+0x39/0x1d0 [ 43.124330] ? lock_acquire+0x1d5/0x580 [ 43.128273] ? process_one_work+0xb2c/0x1bd0 [ 43.132672] ? lock_downgrade+0x990/0x990 [ 43.136807] ? refcount_sub_and_test+0x115/0x1b0 [ 43.141526] ? refcount_inc+0x50/0x50 [ 43.145296] sk_destruct+0x47/0x80 [ 43.148804] __sk_free+0x57/0x230 [ 43.152223] sk_free+0x2a/0x40 [ 43.155384] netlink_sock_destruct_work+0x19/0x20 [ 43.160645] process_one_work+0xbfa/0x1bd0 [ 43.164853] ? check_noncircular+0x20/0x20 [ 43.169060] ? pwq_dec_nr_in_flight+0x450/0x450 [ 43.173696] ? finish_task_switch+0x1d3/0x740 [ 43.178159] ? finish_task_switch+0x1aa/0x740 [ 43.182649] ? __sched_text_start+0x8/0x8 [ 43.186775] ? unwind_dump+0x4c0/0x4c0 [ 43.190631] ? __unwind_start+0x169/0x330 [ 43.194750] ? find_held_lock+0x39/0x1d0 [ 43.198786] ? lock_acquire+0x1d5/0x580 [ 43.202725] ? worker_thread+0x4a3/0x1860 [ 43.206841] ? lock_release+0xd70/0xd70 [ 43.210780] ? do_raw_spin_trylock+0x190/0x190 [ 43.215330] ? find_held_lock+0x39/0x1d0 [ 43.219365] worker_thread+0x223/0x1860 [ 43.223315] ? process_one_work+0x1bd0/0x1bd0 [ 43.227784] ? check_noncircular+0x20/0x20 [ 43.231993] ? _raw_spin_unlock_irq+0x27/0x70 [ 43.236454] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 43.241434] ? trace_hardirqs_on+0xd/0x10 [ 43.245554] ? _raw_spin_unlock_irq+0x27/0x70 [ 43.250131] ? finish_task_switch+0x1d3/0x740 [ 43.254588] ? finish_task_switch+0x1aa/0x740 [ 43.259059] ? preempt_notifier_dec+0x20/0x20 [ 43.263525] ? __schedule+0x8f0/0x2070 [ 43.267384] ? migrate_swap_stop+0x970/0x970 [ 43.271761] ? find_held_lock+0x39/0x1d0 [ 43.275791] ? lock_downgrade+0x990/0x990 [ 43.279908] ? complete+0x18/0x80 [ 43.283421] ? __schedule+0x2070/0x2070 [ 43.287365] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 43.292435] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 43.297417] ? trace_hardirqs_on+0xd/0x10 [ 43.301532] ? __kthread_parkme+0x173/0x240 [ 43.305836] kthread+0x39c/0x470 [ 43.309168] ? process_one_work+0x1bd0/0x1bd0 [ 43.313635] ? kthread_create_on_node+0x100/0x100 [ 43.318456] ret_from_fork+0x2a/0x40 [ 43.322140] 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 [ 43.341303] RIP: __list_del_entry_valid+0x7e/0x150 RSP: ffff8801d98f7098 [ 43.348169] ---[ end trace 038d0e2496e91069 ]--- [ 43.352906] Kernel panic - not syncing: Fatal exception in interrupt [ 43.359402] Dumping ftrace buffer: [ 43.362916] (ftrace buffer empty) [ 43.366596] Kernel Offset: disabled [ 43.370192] Rebooting in 86400 seconds..