af_alg06 test from crypto test suite in LTP killed with SIGSEGV on B-AWS ARM64 (timeout on B-AWS AMD64)

[Po-Hsu Lin]

<<<test_start>>>
tag=af_alg06 stime=1565610613
cmdline="af_alg06"
contacts=""
analysis=exit
<<<test_output>>>
incrementing stop
tst_test.c:1100: INFO: Timeout per run is 0h 05m 00s
af_alg06.c:38: INFO: Setting malformed authenc key. May crash buggy kernels.
tst_test.c:1145: BROK: Test killed by SIGSEGV!

Summary:
passed 0
failed 0
skipped 0
warnings 0
<<<execution_status>>>
initiation_status="ok"
duration=0 termination_type=exited termination_id=2 corefile=no
cutime=0 cstime=23
<<<test_end>>>

 [ 901.222168] LTP: starting af_alg06
 [ 901.391439] Unable to handle kernel paging request at virtual address ffff8003fb000000
 [ 901.393919] Mem abort info:
 [ 901.394750] ESR = 0x96000006
 [ 901.395652] Exception class = DABT (current EL), IL = 32 bits
 [ 901.397475] SET = 0, FnV = 0
 [ 901.398379] EA = 0, S1PTW = 0
 [ 901.399304] Data abort info:
 [ 901.400157] ISV = 0, ISS = 0x00000006
 [ 901.401380] CM = 0, WnR = 0
 [ 901.402263] swapper pgtable: 4k pages, 48-bit VAs, pgd = 00000000f62813a8
 [ 901.404209] [ffff8003fb000000] *pgd=000000043aff6803, *pud=000000043afef803, *pmd=0000000000000000
 [ 901.407126] Internal error: Oops: 96000006 [#2] SMP
 [ 901.408541] Modules linked in: authenc algif_aead algif_skcipher af_alg nls_iso8859_1 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 aes_ce_blk aes_ce_cipher crc32_ce crct10dif_ce ghash_ce sha2_ce sha256_arm64 sha1_ce ena aes_neon_bs aes_neon_blk crypto_simd cryptd aes_arm64
 [ 901.423122] CPU: 0 PID: 6968 Comm: af_alg06 Tainted: G D 4.15.0-1043-aws #45-Ubuntu
 [ 901.426125] Hardware name: Amazon EC2 a1.medium/, BIOS 1.0 11/1/2018
 [ 901.428277] pstate: a0400005 (NzCv daif +PAN -UAO)
 [ 901.429904] pc : sha2_ce_transform+0x30/0x208 [sha2_ce]
 [ 901.431674] lr : sha256_ce_finup+0x3a8/0x450 [sha2_ce]
 [ 901.433396] sp : ffff00000b9f39b0
 [ 901.434538] x29: ffff00000b9f39b0 x28: ffff80003d3f4b00
 [ 901.436341] x27: ffff000008b32000 x26: 0000000000000020
 [ 901.438137] x25: 0000000003ffffff x24: 0000000000000000
 [ 901.439927] x23: ffff8003f22dd60c x22: 000000000000003d
 [ 901.441728] x21: ffff8003f533f500 x20: ffff00000b9f3b00
 [ 901.443519] x19: ffff00000b9f3b80 x18: 0000ffffea7a68b6
 [ 901.445297] x17: 0000000000000000 x16: 0000000000000000
 [ 901.447090] x15: 000000000000000a x14: 0000000000000036
 [ 901.448856] x13: 2e736c656e72656b x12: 2079676775622068
 [ 901.450622] x11: 0000ffffea7a6b80 x10: 0000ffffea7a6b80
 [ 901.452406] x9 : ffffff80ffffffd8 x8 : ffff000000c2ba60
 [ 901.454165] x7 : 7f7fffffff7f7fff x6 : ffff8003f22dd609
 [ 901.455932] x5 : bb67ae856a09e667 x4 : 0000000000000000
 [ 901.457719] x3 : 00008003f1ec7000 x2 : 0000000003dcb758
 [ 901.459505] x1 : ffff8003faffffcc x0 : ffff00000b9f3b80
 [ 901.461323] Process af_alg06 (pid: 6968, stack limit = 0x0000000057fb62f2)
 [ 901.463606] Call trace:
 [ 901.464470] sha2_ce_transform+0x30/0x208 [sha2_ce]
 [ 901.466129] crypto_shash_finup+0x58/0x80
 [ 901.467502] shash_digest_unaligned+0x60/0x78
 [ 901.468968] crypto_shash_digest+0x60/0x90
 [ 901.470374] hmac_setkey+0x198/0x238
 [ 901.471603] crypto_shash_setkey+0x50/0xf0
 [ 901.473014] shash_async_setkey+0x34/0x48
 [ 901.474387] crypto_ahash_setkey+0x48/0xe0
 [ 901.475774] crypto_authenc_setkey+0x7c/0x138 [authenc]
 [ 901.477558] crypto_aead_setkey+0x4c/0xe8
 [ 901.478935] aead_setkey+0x34/0x50 [algif_aead]
 [ 901.480466] alg_setsockopt+0x154/0x1a0 [af_alg]
 [ 901.482047] SyS_setsockopt+0x9c/0x110
 [ 901.483321] el0_svc_naked+0x30/0x34
 [ 901.484558] Code: f2a01844 f2980584 b9400084 b8646804 (4cdf2830)
 [ 901.486628] ---[ end trace abe58e933100bfd7 ]---

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-4.15.0-1043-aws 4.15.0-1043.45
ProcVersionSignature: User Name 4.15.0-1043.45-aws 4.15.18
Uname: Linux 4.15.0-1043-aws aarch64
ApportVersion: 2.20.9-0ubuntu7.6
Architecture: arm64
Date: Mon Aug 12 11:52:43 2019
Ec2AMI: ami-0c579621aaac8bade
Ec2AMIManifest: (unknown)
Ec2AvailabilityZone: us-west-2c
Ec2InstanceType: a1.medium
Ec2Kernel: unavailable
Ec2Ramdisk: unavailable
SourcePackage: linux-aws
UpgradeStatus: No upgrade log present (probably fresh install)

[Po-Hsu Lin (cypressyew)]

For AWS AMD64 node, it's failing with timeout, but traces could be found in syslog as well:
 [ 664.377092] LTP: starting af_alg06
 [ 665.992394] BUG: unable to handle kernel paging request at ffff95632d400000
 [ 665.995555] IP: sha256_transform+0x28/0x1b20
 [ 665.997517] PGD a6b1b067 P4D a6b1b067 PUD a6b1f067 PMD 0
 [ 665.999978] Oops: 0000 [#1] SMP PTI
 [ 666.001628] Modules linked in: authenc algif_aead algif_skcipher af_alg ppdev serio_raw parport_pc parport 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 crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc aesni_intel aes_x86_64 crypto_simd glue_helper cryptd ena
 [ 666.020251] CPU: 1 PID: 7356 Comm: af_alg06 Not tainted 4.15.0-1044-aws #46-Ubuntu
 [ 666.023589] Hardware name: Amazon EC2 r5.large/, BIOS 1.0 10/16/2017
 [ 666.026484] RIP: 0010:sha256_transform+0x28/0x1b20
 [ 666.028699] RSP: 0018:ffffa352c261baa0 EFLAGS: 00010287
 [ 666.031041] RAX: 0000000000000014 RBX: ffff95632d40002c RCX: 0000000000000000
 [ 666.034199] RDX: 0000000004000000 RSI: ffff95632d3fffec RDI: ffffa352c261bca8
 [ 666.037380] RBP: ffffa352c261bbd0 R08: 00000000cdad2d9e R09: ffffa352c261baa0
 [ 666.040501] R10: 00000000a4e7e2df R11: 0000000038c2cb89 R12: ffff95641a0067ec
 [ 666.043615] R13: ffffa352c261bca8 R14: ffff956316a05a48 R15: ffff95631a0067ec
 [ 666.048119] FS: 00007fc74e90e580(0000) GS:ffff95632d100000(0000) knlGS:0000000000000000
 [ 666.054441] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 [ 666.058388] CR2: ffff95632d400000 CR3: 0000000418d9e005 CR4: 00000000007606e0
 [ 666.062945] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 [ 666.067616] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 [ 666.072201] PKRU: 55555554
 [ 666.074919] Call Trace:
 [ 666.077542] sha256_generic_block_fn+0x36/0x50
 [ 666.080942] crypto_sha256_finup+0xef/0x170
 [ 666.084224] crypto_shash_finup+0x25/0x30
 [ 666.087481] shash_digest_unaligned+0x47/0x60
 [ 666.090858] crypto_shash_digest+0x2e/0x40
 [ 666.094158] hmac_setkey+0x15a/0x210
 [ 666.097217] ? tty_insert_flip_string_fixed_flag+0x86/0xe0
 [ 666.101062] crypto_shash_setkey+0x35/0xc0
 [ 666.104334] ? pty_write+0x71/0x90
 [ 666.107295] shash_async_setkey+0x15/0x20
 [ 666.110556] crypto_ahash_setkey+0x38/0xb0
 [ 666.113808] crypto_authenc_setkey+0x68/0x100 [authenc]
 [ 666.117539] crypto_aead_setkey+0x35/0xc0
 [ 666.120770] aead_setkey+0x15/0x20 [algif_aead]
 [ 666.124228] alg_setsockopt+0x112/0x140 [af_alg]
 [ 666.127700] SyS_setsockopt+0x86/0xf0
 [ 666.130799] do_syscall_64+0x73/0x130
 [ 666.133878] entry_SYSCALL_64_after_hwframe+0x3d/0xa2
 [ 666.137616] RIP: 0033:0x7fc74e422e6a
 [ 666.140662] RSP: 002b:00007ffced8dad88 EFLAGS: 00000207 ORIG_RAX: 0000000000000036
 [ 666.146771] RAX: ffffffffffffffda RBX: 00007fc74e90e500 RCX: 00007fc74e422e6a
 [ 666.151264] RDX: 0000000000000001 RSI: 0000000000000117 RDI: 0000000000000006
 [ 666.155761] RBP:...