BUG: unable to handle kernel NULL pointer dereference at 0000000000000060
IP: sha512_mb_mgr_get_comp_job_avx2+0x6e/0xee arch/x86/crypto/sha512-mb/sha512_mb_mgr_flush_avx2.S:251
PGD 0 P4D 0 
Oops: 0002 [#1] SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 1 PID: 1553 Comm: kworker/1:2 Not tainted 4.15.0-rc8+ #270
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: crypto mcryptd_queue_worker
RIP: 0010:sha512_mb_mgr_get_comp_job_avx2+0x6e/0xee arch/x86/crypto/sha512-mb/sha512_mb_mgr_flush_avx2.S:251
RSP: 0018:ffff8801d35d7218 EFLAGS: 00010002
RAX: 0000000000000000 RBX: ffff8801d6094e10 RCX: 0000000000000000
RDX: 0000000000000001 RSI: 000000008e74a3ec RDI: ffff8801d6094cc0
RBP: ffff8801d35d7240 R08: 0000000100000000 R09: 0000000000000001
R10: 0000000000000002 R11: 0000000000000003 R12: ffff8801d6094cc0
R13: 0000000000000282 R14: ffff8801baaa15b8 R15: ffffe8ffffd130e8
FS:  0000000000000000(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000060 CR3: 0000000006822005 CR4: 00000000001606e0
Call Trace:
 sha_complete_job+0x276/0x830 arch/x86/crypto/sha512-mb/sha512_mb.c:510
 sha512_mb_update+0x2f6/0x530 arch/x86/crypto/sha512-mb/sha512_mb.c:610
 crypto_ahash_update include/crypto/hash.h:522 [inline]
 ahash_mcryptd_update crypto/mcryptd.c:625 [inline]
 mcryptd_hash_update+0xcd/0x1c0 crypto/mcryptd.c:371
 mcryptd_queue_worker+0x13d/0x690 crypto/mcryptd.c:179
 process_one_work+0xbbf/0x1b10 kernel/workqueue.c:2113
 worker_thread+0x223/0x1990 kernel/workqueue.c:2247
 kthread+0x33c/0x400 kernel/kthread.c:238
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:541
Code: 49 0f 42 d3 48 f7 c2 f0 ff ff ff 0f 85 9a 00 00 00 48 83 e2 0f 48 6b da 08 48 8d 9c 1f 48 01 00 00 48 8b 03 48 c7 03 00 00 00 00 <c7> 40 60 02 00 00 00 48 8b 9f 40 01 00 00 48 c1 e3 08 48 09 d3 
RIP: sha512_mb_mgr_get_comp_job_avx2+0x6e/0xee arch/x86/crypto/sha512-mb/sha512_mb_mgr_flush_avx2.S:251 RSP: ffff8801d35d7218
CR2: 0000000000000060
---[ end trace 064832b49a919738 ]---
Kernel panic - not syncing: Fatal exception
 create_huge_pmd mm/memory.c:3834 [inline]
 __handle_mm_fault+0x1a0c/0x3ce0 mm/memory.c:4038
 handle_mm_fault+0x334/0x8d0 mm/memory.c:4104
 __do_page_fault+0x5c9/0xc90 arch/x86/mm/fault.c:1430
 do_page_fault+0xee/0x720 arch/x86/mm/fault.c:1505
 page_fault+0x2c/0x60 arch/x86/entry/entry_64.S:1260
RIP: 0010:__get_user_8+0x1b/0x25 arch/x86/lib/getuser.S:85
RSP: 0018:ffff8801bb0f7eb0 EFLAGS: 00010283
RAX: 0000000020c5b007 RBX: 000000000071bea0 RCX: ffffffff8199df18
RDX: ffff8801d9940300 RSI: ffffc9000189f000 RDI: 0000000000000282
RBP: ffff8801bb0f7f48 R08: ffff8801db227d00 R09: 1ffff1003761efb3
R10: ffff8801bb0f7a58 R11: 0000000000000000 R12: 1ffff1003761efd8
R13: 0000000000000069 R14: 0000000020c5b000 R15: dffffc0000000000
 entry_SYSCALL_64_fastpath+0x29/0xa0
RIP: 0033:0x452ee9
RSP: 002b:00007f556fd0dc58 EFLAGS: 00000212 ORIG_RAX: 00000000000000ce
RAX: ffffffffffffffda RBX: 00007f556fd0daa0 RCX: 0000000000452ee9
RDX: 0000000000000000 RSI: 0000000020c5b000 RDI: 0000000000000069
RBP: 00007f556fd0da90 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000212 R12: 00000000004b7c76
R13: 00007f556fd0dbc8 R14: 00000000004b7c76 R15: 0000000000000000
Dumping ftrace buffer:
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Kernel Offset: disabled
Rebooting in 86400 seconds..