do_anonymous_page mm/memory.c:3189 [inline]
 handle_pte_fault mm/memory.c:3963 [inline]
 __handle_mm_fault+0x2fc5/0x3210 mm/memory.c:4089
 handle_mm_fault+0x305/0x840 mm/memory.c:4126
 __do_page_fault+0x59e/0xca0 arch/x86/mm/fault.c:1429
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: 0 PID: 23 Comm: kworker/0:1 Not tainted 4.15.0-rc6-mm1+ #51
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:ffff8801d9cb7b20 EFLAGS: 00010002
RAX: 0000000000000000 RBX: ffff8801d73511d0 RCX: 0000000000000001
RDX: 0000000000000001 RSI: 00000000f4bb0e7c RDI: ffff8801d7351080
RBP: ffff8801d9cb7b48 R08: 0000000100000000 R09: 0000000000000001
R10: 0000000000000002 R11: 0000000000000003 R12: ffff8801d7351080
R13: 0000000000000282 R14: ffff8801c54e18f8 R15: ffffe8ffffc130e8
FS:  0000000000000000(0000) GS:ffff8801db400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000060 CR3: 0000000005e22003 CR4: 00000000001606f0
DR0: 0000000020000000 DR1: 0000000020000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 sha_complete_job+0x21d/0x690 arch/x86/crypto/sha512-mb/sha512_mb.c:510
 sha512_mb_update+0x259/0x3b0 arch/x86/crypto/sha512-mb/sha512_mb.c:610
 crypto_ahash_update include/crypto/hash.h:522 [inline]
 ahash_mcryptd_update crypto/mcryptd.c:624 [inline]
 mcryptd_hash_update+0xcd/0x1c0 crypto/mcryptd.c:370
 mcryptd_queue_worker+0xcd/0x520 crypto/mcryptd.c:178
 process_one_work+0x801/0x14a0 kernel/workqueue.c:2112
 worker_thread+0xe0/0x1010 kernel/workqueue.c:2246
 kthread+0x33c/0x400 kernel/kthread.c:238
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:524
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: ffff8801d9cb7b20
CR2: 0000000000000060
---[ end trace f5a313cf74a23e97 ]---
Kernel panic - not syncing: Fatal exception
 do_page_fault+0x78/0x490 arch/x86/mm/fault.c:1504
 page_fault+0x2c/0x60 arch/x86/entry/entry_64.S:1243
RIP: 0010:copy_user_generic_unrolled+0x86/0xc0 arch/x86/lib/copy_user_64.S:65
RSP: 0018:ffff8801c66ffd68 EFLAGS: 00010202
RAX: ffffed0038cdffbb RBX: 0000000020012ff8 RCX: 0000000000000001
RDX: 0000000000000000 RSI: 0000000020012ff8 RDI: ffff8801c66ffdd0
RBP: ffff8801c66ffd98 R08: ffffed0038cdffbb R09: ffffed0038cdffbb
R10: 0000000000000001 R11: ffffed0038cdffba R12: 0000000000000008
R13: ffff8801c66ffdd0 R14: 00007ffffffff000 R15: 0000000020013000
 copy_from_user include/linux/uaccess.h:147 [inline]
 SYSC_rt_sigtimedwait+0xbc/0x1c0 kernel/signal.c:2883
 SyS_rt_sigtimedwait+0x2d/0x40 kernel/signal.c:2870
 entry_SYSCALL_64_fastpath+0x23/0x9a
RIP: 0033:0x452ac9
RSP: 002b:00007f940daeec58 EFLAGS: 00000212 ORIG_RAX: 0000000000000080
RAX: ffffffffffffffda RBX: 000000000071bea0 RCX: 0000000000452ac9
RDX: 0000000020003000 RSI: 0000000020002000 RDI: 0000000020012ff8
RBP: 0000000000000300 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000008 R11: 0000000000000212 R12: 00000000006f28a0
R13: 00000000ffffffff R14: 00007f940daef6d4 R15: 0000000000000000
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..