kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 7906 Comm: kworker/u4:6 Not tainted 5.1.0-rc4+ #160
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: netns cleanup_net
RIP: 0010:get_work_pool+0xed/0x1b0 kernel/workqueue.c:718
Code: e8 08 99 26 00 4c 89 e0 5b 41 5c 5d c3 e8 fb 98 26 00 48 81 e3 00 fe ff ff 48 b8 00 00 00 00 00 fc ff df 48 89 da 48 c1 ea 03 <80> 3c 02 00 0f 85 a0 00 00 00 4c 8b 23 e8 d1 98 26 00 5b 4c 89 e0
RSP: 0018:ffff8880697cf9f8 EFLAGS: 00010006
RAX: dffffc0000000000 RBX: 0000001ffffffe00 RCX: ffffffff8149f5b6
RDX: 00000003ffffffc0 RSI: ffffffff8149f605 RDI: 0000000000000007
RBP: ffff8880697cfa08 R08: ffff8880908f4380 R09: ffffed1015d25bc8
R10: ffffed1015d25bc7 R11: ffff8880ae92de3b R12: 0000000000000004
R13: ffff8880697cfb60 R14: 0000000000000000 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000c0ce90 CR3: 00000000a9698000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 start_flush_work kernel/workqueue.c:2978 [inline]
 __flush_work+0x148/0x8a0 kernel/workqueue.c:3038
 flush_work+0x18/0x20 kernel/workqueue.c:3060
 xfrm_policy_fini+0x2e/0x3a0 net/xfrm/xfrm_policy.c:3867
 xfrm_net_exit+0x1d/0x70 net/xfrm/xfrm_policy.c:3933
 ops_exit_list.isra.0+0xb0/0x160 net/core/net_namespace.c:153
 cleanup_net+0x3fb/0x960 net/core/net_namespace.c:552
 process_one_work+0x98e/0x1790 kernel/workqueue.c:2269
 worker_thread+0x98/0xe40 kernel/workqueue.c:2415
 kthread+0x357/0x430 kernel/kthread.c:253
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
Modules linked in:
---[ end trace 43210a78291ad133 ]---
RIP: 0010:get_work_pool+0xed/0x1b0 kernel/workqueue.c:718
Code: e8 08 99 26 00 4c 89 e0 5b 41 5c 5d c3 e8 fb 98 26 00 48 81 e3 00 fe ff ff 48 b8 00 00 00 00 00 fc ff df 48 89 da 48 c1 ea 03 <80> 3c 02 00 0f 85 a0 00 00 00 4c 8b 23 e8 d1 98 26 00 5b 4c 89 e0
RSP: 0018:ffff8880697cf9f8 EFLAGS: 00010006
RAX: dffffc0000000000 RBX: 0000001ffffffe00 RCX: ffffffff8149f5b6
RDX: 00000003ffffffc0 RSI: ffffffff8149f605 RDI: 0000000000000007
RBP: ffff8880697cfa08 R08: ffff8880908f4380 R09: ffffed1015d25bc8
R10: ffffed1015d25bc7 R11: ffff8880ae92de3b R12: 0000000000000004
R13: ffff8880697cfb60 R14: 0000000000000000 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000c0ce90 CR3: 00000000a9698000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400