netlink: 8 bytes leftover after parsing attributes in process `syz-executor2'.
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory accessgeneral protection fault: 0000 [#1] PREEMPT SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 1 PID: 15 Comm: kworker/1:0 Not tainted 4.4.133-g54f36ea #52
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events xfrm_hash_rebuild
task: ffff8801d9a80000 task.stack: ffff8801d9a88000
RIP: 0010:[<ffffffff833c6124>]  [<ffffffff833c6124>] xfrm_hash_rebuild+0x4c4/0xae0 net/xfrm/xfrm_policy.c:633
RSP: 0018:ffff8801d9a8fbb8  EFLAGS: 00010246
RAX: 0000000000000000 RBX: dffffc0000000000 RCX: 0000000000000004
RDX: 0000000000000000 RSI: ffffffff833c4e32 RDI: ffff8801d25b9630
RBP: ffff8801d9a8fc40 R08: ffffffff8533d6c0 R09: 0000000000000000
R10: 0000000000000001 R11: ffff8801d9a80000 R12: ffff8800a26f0000
R13: 0000000000000001 R14: ffff8801d25b9618 R15: ffff8801d25b95e8
FS:  0000000000000000(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffe2516aa28 CR3: 00000001d6cb5000 CR4: 00000000001606f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 ffffffff81181e0f ffff8801d9a8fc00 ffffed003a4b72c1 ffff8801d25b960c
 ffff8801d25b99b8 ffff8801d25b9600 1ffff1003a4b7200 ffff8801d25b9720
 ffff8801d25b95b8 ffff8801d25b8000 ffff8801d25b9678 0000000000000002
Call Trace:
 [<ffffffff81181e0f>] process_one_work+0x7df/0x1600 kernel/workqueue.c:2064
 [<ffffffff81182d09>] worker_thread+0xd9/0xfc0 kernel/workqueue.c:2196
 [<ffffffff81190818>] kthread+0x268/0x300 kernel/kthread.c:211
 [<ffffffff838c1395>] ret_from_fork+0x55/0x80 arch/x86/entry/entry_64.S:510
Code: 7c 08 84 d2 0f 85 43 04 00 00 48 8b 7d c0 49 8d b4 24 f4 00 00 00 41 0f b7 94 24 74 02 00 00 e8 23 ec ff ff 49 89 c5 48 c1 e8 03 <80> 3c 18 00 0f 85 eb 03 00 00 49 8b 55 00 49 8d 44 24 08 48 89 
RIP  [<ffffffff833c6124>] xfrm_hash_rebuild+0x4c4/0xae0 net/xfrm/xfrm_policy.c:633
 RSP <ffff8801d9a8fbb8>
---[ end trace ce6fee63d7bd9c15 ]---