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-6,10.128.0.27' (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: [ 44.248478] SELinux: unrecognized netlink message: protocol=6 nlmsg_type=65535 sclass=netlink_xfrm_socket pig=2939 comm=syzkaller973410 [ 44.257950] kasan: CONFIG_KASAN_INLINE enabled [ 44.258652] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 44.259653] general protection fault: 0000 [#1] SMP KASAN [ 44.260396] Dumping ftrace buffer: [ 44.260868] (ftrace buffer empty) [ 44.261361] Modules linked in: [ 44.261793] CPU: 0 PID: 2963 Comm: kworker/0:2 Not tainted 4.13.0-rc4-next-20170811 #1 [ 44.262883] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 44.264109] Workqueue: events netlink_sock_destruct_work [ 44.264871] task: ffff8801d024a100 task.stack: ffff8801d0980000 [ 44.265672] RIP: 0010:__list_del_entry_valid+0x7e/0x150 [ 44.266377] RSP: 0018:ffff8801d09870b8 EFLAGS: 00010246 [ 44.267127] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 44.268077] RDX: 0000000000000000 RSI: ffff8801d01f7b20 RDI: ffff8801d01f7b28 [ 44.271998] RBP: ffff8801d09870d0 R08: ffffffff862d05d8 R09: ffff8801d0986998 [ 44.279234] R10: ffff8801d0986f98 R11: 1ffff1003a049673 R12: 0000000000000000 [ 44.286473] R13: ffff8801d0987198 R14: ffffffff8555db78 R15: ffff8801d01f7b28 [ 44.293715] FS: 0000000000000000(0000) GS:ffff8801dc000000(0000) knlGS:0000000000000000 [ 44.301908] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 44.307760] CR2: 00000000006d00a8 CR3: 00000001cefda000 CR4: 00000000001406f0 [ 44.315012] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 44.322250] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 44.329488] Call Trace: [ 44.332044] ? _raw_spin_lock_bh+0x39/0x40 [ 44.336252] xfrm_policy_walk_done+0xfa/0x310 [ 44.340714] ? xfrm_policy_alloc+0x510/0x510 [ 44.345094] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 44.350255] ? print_usage_bug+0x480/0x480 [ 44.354458] ? copy_sec_ctx+0x290/0x290 [ 44.358395] xfrm_dump_policy_done+0x73/0xa0 [ 44.362772] netlink_sock_destruct+0xfa/0x3c0 [ 44.367230] ? __netlink_create+0x270/0x270 [ 44.371518] ? check_noncircular+0x20/0x20 [ 44.375731] ? check_noncircular+0x20/0x20 [ 44.379931] ? check_noncircular+0x20/0x20 [ 44.384131] ? __netlink_create+0x270/0x270 [ 44.388415] __sk_destruct+0xfd/0x910 [ 44.392182] ? check_noncircular+0x20/0x20 [ 44.396380] ? __sk_dst_check+0x380/0x380 [ 44.400506] ? __lock_acquire+0x6aa/0x3bc0 [ 44.404708] ? find_held_lock+0x35/0x1d0 [ 44.408744] ? check_noncircular+0x20/0x20 [ 44.412948] ? lock_acquire+0x1d5/0x580 [ 44.416885] ? lock_acquire+0x1d5/0x580 [ 44.420822] ? process_one_work+0xb32/0x1bc0 [ 44.425203] ? refcount_sub_and_test+0x115/0x1b0 [ 44.429933] ? refcount_inc+0x50/0x50 [ 44.433708] sk_destruct+0x47/0x80 [ 44.437213] __sk_free+0x57/0x230 [ 44.440633] sk_free+0x2a/0x40 [ 44.443792] netlink_sock_destruct_work+0x19/0x20 [ 44.448603] process_one_work+0xbf3/0x1bc0 [ 44.452804] ? _raw_spin_unlock_irq+0x27/0x70 [ 44.457268] ? pwq_dec_nr_in_flight+0x450/0x450 [ 44.461905] ? preempt_notifier_dec+0x20/0x20 [ 44.466380] ? __schedule+0x8f0/0x2070 [ 44.470236] ? check_noncircular+0x20/0x20 [ 44.474434] ? check_noncircular+0x20/0x20 [ 44.478633] ? check_noncircular+0x20/0x20 [ 44.482842] ? lock_acquire+0x1d5/0x580 [ 44.486782] ? lock_acquire+0x1d5/0x580 [ 44.490721] ? worker_thread+0x4a3/0x1860 [ 44.494833] ? lock_downgrade+0x990/0x990 [ 44.498951] ? lock_release+0xa40/0xa40 [ 44.502891] ? do_raw_spin_trylock+0x190/0x190 [ 44.507444] ? set_next_entity+0x2e4/0xd60 [ 44.511652] worker_thread+0x223/0x1860 [ 44.515602] ? process_one_work+0x1bc0/0x1bc0 [ 44.520066] ? _raw_spin_unlock_irq+0x27/0x70 [ 44.524530] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 44.529510] ? trace_hardirqs_on+0xd/0x10 [ 44.533626] ? _raw_spin_unlock_irq+0x27/0x70 [ 44.538090] ? finish_task_switch+0x1d3/0x740 [ 44.542551] ? finish_task_switch+0x1aa/0x740 [ 44.547013] ? preempt_notifier_dec+0x20/0x20 [ 44.551483] ? __schedule+0x8f0/0x2070 [ 44.555343] ? try_to_wake_up+0xf9/0x1600 [ 44.559461] ? migrate_swap_stop+0x970/0x970 [ 44.563836] ? find_held_lock+0x35/0x1d0 [ 44.567865] ? find_held_lock+0x35/0x1d0 [ 44.571903] ? complete+0x62/0x80 [ 44.575327] ? __schedule+0x2070/0x2070 [ 44.579268] ? __lockdep_init_map+0xe4/0x650 [ 44.583647] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 44.588715] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 44.593697] ? trace_hardirqs_on+0xd/0x10 [ 44.597810] ? __kthread_parkme+0x173/0x240 [ 44.602101] kthread+0x35e/0x430 [ 44.605439] ? process_one_work+0x1bc0/0x1bc0 [ 44.609899] ? kthread_create_on_node+0x100/0x100 [ 44.614713] ret_from_fork+0x2a/0x40 [ 44.618396] 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 [ 44.637500] RIP: __list_del_entry_valid+0x7e/0x150 RSP: ffff8801d09870b8 [ 44.644366] ---[ end trace 934a73db2a46b332 ]--- [ 44.649102] Kernel panic - not syncing: Fatal exception in interrupt [ 44.655874] Dumping ftrace buffer: [ 44.659381] (ftrace buffer empty) [ 44.663055] Kernel Offset: disabled [ 44.666648] Rebooting in 86400 seconds..