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-kasan-gce-5,10.128.0.20' (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: [ 33.948315] SELinux: unrecognized netlink message: protocol=6 nlmsg_type=65535 sclass=netlink_xfrm_socket pig=3002 comm=syzkaller259904 [ 33.954206] kasan: CONFIG_KASAN_INLINE enabled [ 33.954908] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 33.955948] general protection fault: 0000 [#1] SMP KASAN [ 33.956736] Dumping ftrace buffer: [ 33.957209] (ftrace buffer empty) [ 33.957705] Modules linked in: [ 33.958152] CPU: 0 PID: 1310 Comm: kworker/0:3 Not tainted 4.13.0-rc6+ #44 [ 33.959129] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.960512] Workqueue: events netlink_sock_destruct_work [ 33.961231] task: ffff8801d3eb47c0 task.stack: ffff8801d3fc0000 [ 33.962030] RIP: 0010:__list_del_entry_valid+0x7e/0x150 [ 33.962734] RSP: 0018:ffff8801d3fc70b8 EFLAGS: 00010246 [ 33.963441] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 33.964391] RDX: 0000000000000000 RSI: ffff8801cf968b58 RDI: ffff8801cf968b60 [ 33.965344] RBP: ffff8801d3fc70d0 R08: ffffffff86e006a8 R09: ffff8801d3fc6a18 [ 33.966293] R10: ffff8801d3fc6f98 R11: 1ffff1003a7d6b53 R12: 0000000000000000 [ 33.967258] R13: ffff8801d3fc7198 R14: ffffffff860680f8 R15: ffff8801cf968b60 [ 33.968208] FS: 0000000000000000(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 [ 33.975135] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 33.980982] CR2: 00000000006d00a8 CR3: 0000000005a22000 CR4: 00000000001406f0 [ 33.988220] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 33.995456] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 34.002693] Call Trace: [ 34.005252] ? _raw_spin_lock_bh+0x39/0x40 [ 34.009454] xfrm_policy_walk_done+0xfa/0x310 [ 34.013918] ? xfrm_audit_policy_delete+0x1f0/0x1f0 [ 34.018897] ? wait_for_completion+0x730/0x730 [ 34.023450] ? copy_sec_ctx+0x290/0x290 [ 34.027388] xfrm_dump_policy_done+0x73/0xa0 [ 34.031764] netlink_sock_destruct+0xfa/0x3c0 [ 34.036231] ? __netlink_create+0x270/0x270 [ 34.040522] ? check_noncircular+0x20/0x20 [ 34.044727] ? rcu_exp_wait_wake+0xafc/0x1460 [ 34.049187] ? find_held_lock+0x35/0x1d0 [ 34.053213] ? __netlink_create+0x270/0x270 [ 34.057499] __sk_destruct+0xfd/0x910 [ 34.061265] ? check_noncircular+0x20/0x20 [ 34.065465] ? sock_rfree+0x160/0x160 [ 34.069232] ? check_noncircular+0x20/0x20 [ 34.073720] ? check_noncircular+0x20/0x20 [ 34.077923] ? lock_acquire+0x1d5/0x580 [ 34.081860] ? lock_acquire+0x1d5/0x580 [ 34.085800] ? process_one_work+0xb32/0x1bc0 [ 34.090176] ? refcount_sub_and_test+0x115/0x1b0 [ 34.094897] ? refcount_inc+0x50/0x50 [ 34.098668] sk_destruct+0x47/0x80 [ 34.102174] __sk_free+0x57/0x230 [ 34.105593] sk_free+0x2a/0x40 [ 34.108755] netlink_sock_destruct_work+0x19/0x20 [ 34.113562] process_one_work+0xbf3/0x1bc0 [ 34.117760] ? _raw_spin_unlock_irq+0x27/0x70 [ 34.122228] ? pwq_dec_nr_in_flight+0x450/0x450 [ 34.126873] ? preempt_notifier_dec+0x20/0x20 [ 34.131342] ? __schedule+0x8f0/0x2070 [ 34.135198] ? check_noncircular+0x20/0x20 [ 34.139396] ? check_noncircular+0x20/0x20 [ 34.143598] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 34.148755] ? check_noncircular+0x20/0x20 [ 34.152964] ? lock_acquire+0x1d5/0x580 [ 34.156902] ? lock_acquire+0x1d5/0x580 [ 34.160838] ? worker_thread+0x4a3/0x1860 [ 34.164950] ? lock_downgrade+0x990/0x990 [ 34.169065] ? lock_release+0xa40/0xa40 [ 34.173005] ? do_raw_spin_trylock+0x190/0x190 [ 34.177562] ? __update_idle_core+0x311/0x610 [ 34.182030] worker_thread+0x223/0x1860 [ 34.185979] ? process_one_work+0x1bc0/0x1bc0 [ 34.190440] ? _raw_spin_unlock_irq+0x27/0x70 [ 34.194910] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 34.199891] ? trace_hardirqs_on+0xd/0x10 [ 34.204004] ? _raw_spin_unlock_irq+0x27/0x70 [ 34.208466] ? finish_task_switch+0x1d3/0x740 [ 34.212926] ? finish_task_switch+0x1aa/0x740 [ 34.217388] ? preempt_notifier_dec+0x20/0x20 [ 34.221860] ? __schedule+0x8f0/0x2070 [ 34.225716] ? try_to_wake_up+0xf9/0x1600 [ 34.229831] ? migrate_swap_stop+0x970/0x970 [ 34.234205] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 34.239274] ? find_held_lock+0x35/0x1d0 [ 34.243303] ? complete+0x62/0x80 [ 34.246723] ? __schedule+0x2070/0x2070 [ 34.250666] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 34.255733] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 34.260714] ? trace_hardirqs_on+0xd/0x10 [ 34.264824] ? __kthread_parkme+0x173/0x240 [ 34.269114] kthread+0x35e/0x430 [ 34.272447] ? process_one_work+0x1bc0/0x1bc0 [ 34.276906] ? kthread_create_on_node+0x100/0x100 [ 34.281715] ret_from_fork+0x2a/0x40 [ 34.285400] 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 [ 34.304461] RIP: __list_del_entry_valid+0x7e/0x150 RSP: ffff8801d3fc70b8 [ 34.311308] ---[ end trace c760b41370daff30 ]--- [ 34.316047] Kernel panic - not syncing: Fatal exception in interrupt [ 34.322862] Dumping ftrace buffer: [ 34.326369] (ftrace buffer empty) [ 34.330048] Kernel Offset: disabled [ 34.333647] Rebooting in 86400 seconds..