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: 1661 Comm: kworker/1:2 Not tainted 4.4.135-ge75204c #55 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events xfrm_hash_rebuild task: ffff8801d4181800 task.stack: ffff8801d4228000 RIP: 0010:[] [] xfrm_hash_rebuild+0x4c4/0xae0 net/xfrm/xfrm_policy.c:633 RSP: 0018:ffff8801d422fbb8 EFLAGS: 00010246 RAX: 0000000000000000 RBX: dffffc0000000000 RCX: 0000000000000004 RDX: 0000000000000000 RSI: ffffffff833c64d2 RDI: ffff8801b9f91630 RBP: ffff8801d422fc40 R08: ffffffff8536bb20 R09: 0000000000000000 R10: 0000000000000001 R11: ffff8801d4181800 R12: ffff8800a0033b80 R13: 0000000000000001 R14: ffff8801b9f91618 R15: ffff8801b9f915e8 FS: 0000000000000000(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f3574348db8 CR3: 00000000b8e43000 CR4: 00000000001606f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Stack: ffffffff81181f4f ffff8801d422fc00 ffffed00373f22c1 ffff8801b9f9160c ffff8801b9f919b8 ffff8801b9f91680 1ffff100373f2280 ffff8801b9f9171d ffff8801b9f915b8 ffff8801b9f90000 ffff8801b9f91678 0000000000000002 Call Trace: [] process_one_work+0x7df/0x1600 kernel/workqueue.c:2064 [] worker_thread+0xd9/0xfc0 kernel/workqueue.c:2196 [] kthread+0x268/0x300 kernel/kthread.c:211 [] 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 [] xfrm_hash_rebuild+0x4c4/0xae0 net/xfrm/xfrm_policy.c:633 RSP ---[ end trace 9ce2f24d92f5bdd2 ]---