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: 28055 Comm: kworker/1:5 Not tainted 4.4.132-g4b08356 #50 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events xfrm_hash_rebuild task: ffff8801d9b46000 task.stack: ffff88009feb0000 RIP: 0010:[] [] xfrm_hash_rebuild+0x4c4/0xae0 net/xfrm/xfrm_policy.c:633 RSP: 0018:ffff88009feb7bb8 EFLAGS: 00010246 RAX: 0000000000000000 RBX: dffffc0000000000 RCX: 0000000000000004 RDX: 0000000000000000 RSI: ffffffff833c4392 RDI: ffff8800a2369630 RBP: ffff88009feb7c40 R08: ffffffff85355e30 R09: 0000000000000000 R10: 0000000000000001 R11: ffff8801d9b46000 R12: ffff8800ba78b300 R13: 0000000000000000 R14: ffff8800a2369618 R15: ffff8800a23695e8 FS: 0000000000000000(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000100 CR3: 00000000b2e9b000 CR4: 00000000001606f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Stack: ffffffff81181d5f ffff88009feb7c00 ffffed001446d2c1 ffff8800a236960c ffff8800a23699b8 ffff8800a236961d 1ffff1001446d200 ffff8800a2369720 ffff8800a23695b8 ffff8800a2368000 ffff8800a2369678 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 927b49c3a4c8c824 ]---