kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 1 PID: 28862 Comm: kworker/1:5 Not tainted 4.15.0-rc5+ #175
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: crypto mcryptd_flusher
RIP: 0010:scatterwalk_start include/crypto/scatterwalk.h:86 [inline]
RIP: 0010:scatterwalk_pagedone include/crypto/scatterwalk.h:111 [inline]
RIP: 0010:scatterwalk_copychunks+0x337/0x480 crypto/scatterwalk.c:55
RSP: 0018:ffff8801afa9ed40 EFLAGS: 00010202
RAX: 0000000000000000 RBX: 0000000000000fa4 RCX: ffffffff82588089
RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000008
RBP: ffff8801afa9eda0 R08: ffffed00394426c3 R09: ffffed00394426c3
R10: 0000000000000003 R11: ffffed00394426c2 R12: 0000000000000fa4
R13: ffff8801afa9f050 R14: dffffc0000000000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002054bfd0 CR3: 0000000006422003 CR4: 00000000001606e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 skcipher_next_slow crypto/skcipher.c:272 [inline]
 skcipher_walk_next+0x8db/0x1bd0 crypto/skcipher.c:357
 skcipher_walk_done+0x43c/0xcb0 crypto/skcipher.c:154
 crypto_chacha20_crypt+0x979/0xc00 crypto/chacha20_generic.c:101
 crypto_skcipher_decrypt include/crypto/skcipher.h:463 [inline]
 chacha_decrypt crypto/chacha20poly1305.c:152 [inline]
 poly_tail_continue+0x42a/0x6b0 crypto/chacha20poly1305.c:167
 async_done_continue crypto/chacha20poly1305.c:80 [inline]
 poly_tail_done+0x87/0xa0 crypto/chacha20poly1305.c:172
 sha_complete_job+0x5ff/0x890 arch/x86/crypto/sha256-mb/sha256_mb.c:472
 sha256_mb_flusher+0x2cc/0x5f0 arch/x86/crypto/sha256-mb/sha256_mb.c:936
 mcryptd_flusher+0x310/0x480 crypto/mcryptd.c:209
 process_one_work+0xbbf/0x1b10 kernel/workqueue.c:2112
 worker_thread+0x223/0x1990 kernel/workqueue.c:2246
 kthread+0x33c/0x400 kernel/kthread.c:238
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:515
Code: 89 ff e8 cd 7c 2a 00 4c 89 ea 49 89 c7 48 c1 ea 03 42 80 3c 32 00 0f 85 c9 00 00 00 49 8d 7f 08 4d 89 7d 00 48 89 fa 48 c1 ea 03 <42> 0f b6 14 32 84 d2 74 09 80 fa 03 0f 8e 9e 00 00 00 48 8b 45 
RIP: scatterwalk_start include/crypto/scatterwalk.h:86 [inline] RSP: ffff8801afa9ed40
RIP: scatterwalk_pagedone include/crypto/scatterwalk.h:111 [inline] RSP: ffff8801afa9ed40
RIP: scatterwalk_copychunks+0x337/0x480 crypto/scatterwalk.c:55 RSP: ffff8801afa9ed40
---[ end trace adb8824980fe49ad ]---
Kernel panic - not syncing: Fatal exception in interrupt
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..