Comment 0 for bug 1829725

 LTP: starting af_alg06
 BUG: unable to handle kernel paging request at ffff9cbffffe0000
 IP: sha256_transform+0x28/0x1b20
 PGD 4d341067 P4D 4d341067 PUD 4d345067 PMD 4d346067 PTE 0
 Oops: 0000 [#1] SMP PTI
 Modules linked in: authenc algif_aead xfrm_user xfrm_algo sha3_generic algif_hash salsa20_generic algif_skcipher af_alg kvm_intel kvm irqbypass joydev input_leds serio_raw mac_hid sch_fq_codel ib_iser rdma_cm iw_cm ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ip_tables x_tables autofs4 btrfs zstd_compress raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear cirrus ttm drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops virtio_net psmouse virtio_blk drm i2c_piix4 pata_acpi floppy
 CPU: 0 PID: 24368 Comm: af_alg06 Not tainted 4.15.0-50-generic #54-Ubuntu
 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Ubuntu-1.8.2-1ubuntu1 04/01/2014
 RIP: 0010:sha256_transform+0x28/0x1b20
 RSP: 0018:ffffb58e8344baa0 EFLAGS: 00010283
 RAX: 0000000000000034 RBX: ffff9cbffffe000c RCX: 0000000000000000
 RDX: 0000000000000000 RSI: ffff9cbffffdffcc RDI: ffffb58e8344bca8
 RBP: ffffb58e8344bbd0 R08: 000000001b6c96f6 R09: ffffb58e8344baa0
 R10: 000000007a9a01a1 R11: 000000001ecb7428 R12: ffff9cc0f332c00c
 R13: ffffb58e8344bca8 R14: ffff9cbff4d8d048 R15: ffff9cbff332c00c
 FS: 00007f9f2a44d580(0000) GS:ffff9cbfffc00000(0000) knlGS:0000000000000000
 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: ffff9cbffffe0000 CR3: 000000007c1da000 CR4: 00000000000006f0
 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 Call Trace:
  sha256_generic_block_fn+0x36/0x50
  crypto_sha256_finup+0xef/0x170
  crypto_shash_finup+0x25/0x30
  shash_digest_unaligned+0x47/0x60
  crypto_shash_digest+0x2e/0x40
  hmac_setkey+0x15a/0x210
  ? tty_insert_flip_string_fixed_flag+0x86/0xe0
  crypto_shash_setkey+0x35/0xc0
  ? pty_write+0x71/0x90
  shash_async_setkey+0x15/0x20
  crypto_ahash_setkey+0x38/0xb0
  crypto_authenc_setkey+0x68/0x100 [authenc]
  crypto_aead_setkey+0x35/0xc0
  aead_setkey+0x15/0x20 [algif_aead]
  alg_setsockopt+0x112/0x140 [af_alg]
  SyS_setsockopt+0x86/0xf0
  do_syscall_64+0x73/0x130
  entry_SYSCALL_64_after_hwframe+0x3d/0xa2
 RIP: 0033:0x7f9f29f61e6a
 RSP: 002b:00007ffdd050ba38 EFLAGS: 00000207 ORIG_RAX: 0000000000000036
 RAX: ffffffffffffffda RBX: 00007f9f2a44d500 RCX: 00007f9f29f61e6a
 RDX: 0000000000000001 RSI: 0000000000000117 RDI: 0000000000000006
 RBP: 0000000000000006 R08: 0000000000000009 R09: 00007ffdd050b960
 R10: 00007ffdd050ba4f R11: 0000000000000207 R12: 0000000000000001
 R13: 0000000000000000 R14: 0000000000000000 R15: 000056456d64d908
 Code: 00 00 00 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 81 ec 08 01 00 00 65 48 8b 04 25 28 00 00 00 48 89 45 d0 31 c0 <8b> 14 06 0f ca 89 94 05 d0 fe ff ff 48 83 c0 04 48 83 f8 40 75
 RIP: sha256_transform+0x28/0x1b20 RSP: ffffb58e8344baa0
 CR2: ffff9cbffffe0000
 ---[ end trace ac2d55c95d4eed9d ]---

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-4.15.0-50-generic 4.15.0-50.54
ProcVersionSignature: User Name 4.15.0-50.54-generic 4.15.18
Uname: Linux 4.15.0-50-generic x86_64
AlsaDevices:
 total 0
 crw-rw---- 1 root audio 116, 1 May 20 08:23 seq
 crw-rw---- 1 root audio 116, 33 May 20 08:23 timer
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay'
ApportVersion: 2.20.9-0ubuntu7.6
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord': 'arecord'
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
Date: Mon May 20 08:44:39 2019
IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig': 'iwconfig'
Lsusb: Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
MachineType: QEMU Standard PC (i440FX + PIIX, 1996)
PciMultimedia:

ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=C.UTF-8
 SHELL=/bin/bash
ProcFB: 0 cirrusdrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-50-generic root=UUID=576666e8-9e7f-40ee-934e-f1dce18323e5 ro
RelatedPackageVersions:
 linux-restricted-modules-4.15.0-50-generic N/A
 linux-backports-modules-4.15.0-50-generic N/A
 linux-firmware 1.173.6
RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill'
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/01/2014
dmi.bios.vendor: SeaBIOS
dmi.bios.version: Ubuntu-1.8.2-1ubuntu1
dmi.chassis.type: 1
dmi.chassis.vendor: QEMU
dmi.chassis.version: pc-i440fx-xenial
dmi.modalias: dmi:bvnSeaBIOS:bvrUbuntu-1.8.2-1ubuntu1:bd04/01/2014:svnQEMU:pnStandardPC(i440FX+PIIX,1996):pvrpc-i440fx-xenial:cvnQEMU:ct1:cvrpc-i440fx-xenial:
dmi.product.name: Standard PC (i440FX + PIIX, 1996)
dmi.product.version: pc-i440fx-xenial
dmi.sys.vendor: QEMU