netlink: 3868 bytes leftover after parsing attributes in process `syz-executor5'. kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] SMP KASAN Dumping ftrace buffer: (ftrace buffer empty) Modules linked in: CPU: 0 PID: 5536 Comm: kworker/0:3 Not tainted 4.13.0-rc6+ #27 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events netlink_sock_destruct_work task: ffff8801d77c04c0 task.stack: ffff8801d6c28000 RIP: 0010:__list_del_entry_valid+0x7e/0x150 lib/list_debug.c:51 RSP: 0018:ffff8801d6c2f0b8 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff8801c86fafe0 RDI: ffff8801c86fafe8 RBP: ffff8801d6c2f0d0 R08: ffffffff86de6278 R09: ffff8801d6c2ea18 R10: ffff8801d6c2ef98 R11: 1ffff1003aef82f3 R12: 0000000000000000 R13: ffff8801d6c2f198 R14: ffff8801aac33938 R15: ffff8801c86fafe8 FS: 0000000000000000(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020ea5ff8 CR3: 00000001c281f000 CR4: 00000000001406f0 Call Trace: __list_del_entry include/linux/list.h:116 [inline] list_del include/linux/list.h:124 [inline] xfrm_policy_walk_done+0xfa/0x310 net/xfrm/xfrm_policy.c:1049 xfrm_dump_policy_done+0x73/0xa0 net/xfrm/xfrm_user.c:1698 netlink_sock_destruct+0xfa/0x3c0 net/netlink/af_netlink.c:362 __sk_destruct+0xfd/0x910 net/core/sock.c:1570 sk_destruct+0x47/0x80 net/core/sock.c:1605 __sk_free+0x57/0x230 net/core/sock.c:1613 sk_free+0x2a/0x40 net/core/sock.c:1624 netlink_sock_destruct_work+0x19/0x20 net/netlink/af_netlink.c:384 process_one_work+0xbf3/0x1bc0 kernel/workqueue.c:2097 worker_thread+0x223/0x1860 kernel/workqueue.c:2231 kthread+0x35e/0x430 kernel/kthread.c:231 ret_from_fork+0x2a/0x40 arch/x86/entry/entry_64.S:425 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 RIP: __list_del_entry_valid+0x7e/0x150 lib/list_debug.c:51 RSP: ffff8801d6c2f0b8 ---[ end trace 3f6be1f9aeb23c6d ]--- Kernel panic - not syncing: Fatal exception in interrupt Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled Rebooting in 86400 seconds..