IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready
8021q: adding VLAN 0 to HW filter on device batadv0
8021q: adding VLAN 0 to HW filter on device bond0
device hsr_slave_0 entered promiscuous mode
TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies.  Check SNMP counters.
BUG: unable to handle kernel NULL pointer dereference at           (null)
IP:           (null)
PGD 951f6067 P4D 951f6067 PUD 957f0067 PMD 0 
Oops: 0010 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 0 PID: 24 Comm: kworker/0:1 Not tainted 4.14.175-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: pencrypt padata_serial_worker
task: ffff8880a9e44640 task.stack: ffff8880a9e58000
==================================================================
RIP: 0010:          (null)
BUG: KASAN: use-after-free in list_replace include/linux/list.h:141 [inline]
BUG: KASAN: use-after-free in list_replace_init include/linux/list.h:149 [inline]
BUG: KASAN: use-after-free in padata_parallel_worker+0x37a/0x420 kernel/padata.c:76
RSP: 0018:ffff8880a9e5fc88 EFLAGS: 00010246
Write of size 8 at addr ffff88809beaae58 by task kworker/1:0/18

CPU: 1 PID: 18 Comm: kworker/1:0 Not tainted 4.14.175-syzkaller #0
RAX: dffffc0000000000 RBX: ffff888083045c80 RCX: 0000000000000000
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RDX: 1ffff11010608b92 RSI: 0000000000000000 RDI: ffff888083045c80
RBP: ffff8880a9e5fca0 R08: ffff8880a9e5fcf8 R09: 1ffff110153cbfa0
Workqueue: pencrypt padata_parallel_worker
R10: ffff8880a9e5f998 R11: ffff8880a9e44640 R12: 0000000000000001
R13: ffff8880a9e5fcf8 R14: dffffc0000000000 R15: ffff888083045cd0
FS:  0000000000000000(0000) GS:ffff8880aee00000(0000) knlGS:0000000000000000
Call Trace:
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0xf7/0x13b lib/dump_stack.c:58
CR2: 0000000000000000 CR3: 000000009539d000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 print_address_description.cold.7+0x9/0x1c9 mm/kasan/report.c:252
Call Trace:
 aead_request_complete include/crypto/internal/aead.h:75 [inline]
 pcrypt_aead_serial+0x79/0xb0 crypto/pcrypt.c:123
 kasan_report_error mm/kasan/report.c:351 [inline]
 kasan_report.cold.8+0x11a/0x2d3 mm/kasan/report.c:409
 padata_serial_worker+0x26b/0x470 kernel/padata.c:317
 __asan_report_store8_noabort+0x17/0x20 mm/kasan/report.c:435
 list_replace include/linux/list.h:141 [inline]
 list_replace_init include/linux/list.h:149 [inline]
 padata_parallel_worker+0x37a/0x420 kernel/padata.c:76
 process_one_work+0x79e/0x16c0 kernel/workqueue.c:2116
 worker_thread+0xcc/0xee0 kernel/workqueue.c:2250
 process_one_work+0x79e/0x16c0 kernel/workqueue.c:2116
 kthread+0x338/0x400 kernel/kthread.c:232
 worker_thread+0xcc/0xee0 kernel/workqueue.c:2250
 kthread+0x338/0x400 kernel/kthread.c:232
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404
Code: 
 Bad RIP value.
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404
RIP:           (null) RSP: ffff8880a9e5fc88

CR2: 0000000000000000
---[ end trace 5271bb37ade1bdee ]---
Allocated by task 6987: