[Bug 2067527] Re: kernel BUG at crypto/algapi.c:431!

We're also seeing a similar crash w/ 5.15.0:

[24881.902027] ------------[ cut here ]------------
[24881.902068] WARNING: CPU: 7 PID: 2196586 at crypto/algapi.c:472 crypto_unregister_alg+0xfc/0
x108
[24881.902119] Modules linked in: aes_ce_blk(+) chacha_generic chacha_neon libchacha cfb xxhash
_generic xcbc wp512 vmac sm3_generic poly1305_generic poly1305_neon nhpoly1305_neon nhpoly1305
libpoly1305 michael_mic md4 streebog_generic sha3_generic rmd160 crc32_generic cmac algif_rng t
wofish_generic twofish_common serpent_generic fcrypt cast6_generic cast5_generic cast_common ca
mellia_generic blowfish_generic blowfish_common aes_arm64 algif_skcipher algif_hash sm4_generic
libsm4 ccm aes_ce_ccm des_generic libdes authenc aegis128 algif_aead af_alg bridge stp llc nls
_iso8859_1 dm_multipath scsi_dh_rdac scsi_dh_emc scsi_dh_alua binfmt_misc cavium_rng_vf thunder
x_zip thunderx_edac cavium_rng ipmi_ssif ipmi_devintf uio_pdrv_genirq ipmi_msghandler uio sch_f
q_codel ramoops reed_solomon pstore_blk pstore_zone efi_pstore ip_tables x_tables autofs4 btrfs
blake2b_generic zstd_compress raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor
async_tx xor xor_neon raid6_pq libcrc32c raid1 raid0
[24881.902474] multipath linear ast drm_vram_helper drm_ttm_helper ttm i2c_algo_bit drm_kms_he
lper syscopyarea sysfillrect sysimgblt fb_sys_fops cec rc_core nicvf cavium_ptp drm nicpf thund
er_bgx thunder_xcv mdio_thunder i2c_thunderx mdio_cavium thunderx_mmc xhci_pci ahci xhci_pci_re
nesas gpio_keys crct10dif_ce ghash_ce sha2_ce sha256_arm64 sha1_ce aes_neon_blk crypto_simd cry
ptd aes_ce_cipher
[24881.902624] CPU: 7 PID: 2196586 Comm: modprobe Not tainted 5.15.0-107-generic #117~20.04.1-U
buntu
[24881.902640] Hardware name: Cavium ThunderX CRB/To be filled by O.E.M., BIOS 5.11 12/12/2012
[24881.902646] pstate: 20400005 (nzCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[24881.902654] pc : crypto_unregister_alg+0xfc/0x108
[24881.902662] lr : crypto_unregister_alg+0x8c/0x108
[24881.902667] sp : ffff800021f2b860
[24881.902671] x29: ffff800021f2b860 x28: ffffffffffffffef x27: ffff800001955b00
[24881.902694] x26: ffff800001955b80 x25: ffff800001955b60 x24: ffff8000019551a0
[24881.902707] x23: ffff800001955180 x22: ffff800021f2b898 x21: ffff80000aafb9c8
[24881.902724] x20: ffff000832b82080 x19: ffff800001956400 x18: 0000000000000000
[24881.902748] x17: ffff800fb49aa000 x16: ffff800008038000 x15: ffff80000a96b428
[24881.902769] x14: ffff80000a96af50 x13: 0000000000000007 x12: 0000000000000008
[24881.902781] x11: ffff80000a92db60 x10: 0000000000000bf0 x9 : ffff8000087744c4
[24881.902802] x8 : ffff000832b82cd0 x7 : 0000000000000425 x6 : ffff80000aafba70
[24881.902829] x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000000
[24881.902842] x2 : ffffffffffffffff x1 : 0000000000000001 x0 : 000000000000004a
[24881.902855] Call trace:
[24881.902862] crypto_unregister_alg+0xfc/0x108
[24881.902870] crypto_unregister_skciphers+0x3c/0x58
[24881.902880] aes_exit+0x88/0xf0 [aes_ce_blk]
[24881.902907] cpu_feature_match_AES_init+0x12c/0x1000 [aes_ce_blk]
[24881.902920] do_one_initcall+0x50/0x258
[24881.902938] do_init_module+0x50/0x218
[24881.902957] load_module+0x10d4/0x15d8
[24881.902962] __do_sys_finit_module+0xbc/0x128
[24881.902968] __arm64_sys_finit_module+0x28/0x38
[24881.902973] invoke_syscall+0x74/0xf0
[24881.902989] el0_svc_common.constprop.0+0x58/0x1a8
[24881.902995] do_el0_svc+0x2c/0xa0
[24881.903011] el0_svc+0x40/0x138
[24881.903029] el0t_64_sync_handler+0xb0/0xb8
[24881.903036] el0t_64_sync+0x1a4/0x1a8
[24881.903050] ---[ end trace 48915fdb364cfcf7 ]---
[24882.589982] ------------[ cut here ]------------
[24882.590023] WARNING: CPU: 20 PID: 2197443 at crypto/algapi.c:472 crypto_unregister_alg+0xfc/0x108

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https://bugs.launchpad.net/bugs/2067527

Title:
kernel BUG at crypto/algapi.c:431!

Status in linux package in Ubuntu:
New

Bug description:
Our ARM64 servers are tripping a BUG in the 5.4.0-182 kernel when
running cert regression testing:

bizzy login: [ 221.090860] kernel BUG at /build/linux-hwe-5.4-OMohr6/linux-hwe-5.4-5.4.0/crypto/algapi.c:431!
[ 221.099468] Internal error: Oops - BUG: 0 [#1] SMP
[ 221.104250] Modules linked in: aes_ce_blk(+) salsa20_generic pcbc ofb lrw chacha_neon chacha_generic cfb xxhash_generic xcbc wp512 vmac tgr192 sm3_generic rmd320 rmd256 rmd128 nhpoly1305_neon nhpoly1305 poly1305_generic michael_mic md4 streebog_generic sha3_generic rmd160 crc32_generic cmac algif_rng twofish_generic twofish_common tea serpent_generic seed khazad fcrypt cast6_generic cast5_generic cast_common camellia_generic blowfish_generic blowfish_common anubis aes_arm64 algif_skcipher algif_hash sm4_generic ccm aes_ce_ccm des_generic libdes authenc aegis128 algif_aead af_alg nls_iso8859_1 arm_spe_pmu ipmi_ssif joydev binfmt_misc input_leds cdc_ether usbnet ipmi_devintf ipmi_msghandler cppc_cpufreq xgene_hwmon acpi_tad sch_fq_codel ib_iser rdma_cm iw_cm ib_cm 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 xor_neon raid6_pq libcrc32c raid1 raid0 multipath
[ 221.104294] linear mlx5_ib hid_generic usbhid hid uas usb_storage ast i2c_algo_bit ib_uverbs drm_vram_helper ttm ib_core drm_kms_helper syscopyarea crct10dif_ce ghash_ce sha2_ce sysfillrect sha256_arm64 sysimgblt nvme fb_sys_fops sha1_ce mlx5_core drm nvme_core tls mlxfw aes_neon_blk crypto_simd cryptd aes_ce_cipher
[ 221.219601] CPU: 66 PID: 26460 Comm: modprobe Not tainted 5.4.0-182-generic #202~18.04.1-Ubuntu
[ 221.228286] Hardware name: WIWYNN Mt.Jade Server System B81.030Z1.0007/Mt.Jade Motherboard, BIOS 1.6.20210526 (SCP: 1.06.20210526) 2021/05/26
[ 221.240963] pstate: 20400009 (nzCv daif +PAN -UAO)
[ 221.245756] pc : crypto_unregister_alg+0xe8/0xf0
[ 221.250360] lr : crypto_unregister_alg+0x8c/0xf0
[ 221.254964] sp : ffff800043c2ba90
[ 221.258265] x29: ffff800043c2ba90 x28: 0000000000000100
[ 221.263564] x27: ffffa8525f8fd8a8 x26: 0000000000000001
[ 221.268863] x25: 0000000000000001 x24: ffff369494c70e48
[ 221.274162] x23: ffffa85251c08b10 x22: ffff800043c2bac8
[ 221.279460] x21: ffffa85261875458 x20: ffffa85260b17000
[ 221.284759] x19: ffffa85251c08100 x18: 0000000000000000
[ 221.290057] x17: 0000000000000000 x16: ffffa8525fd2fb40
[ 221.295355] x15: 401755505c001000 x14: 0000000000000000
[ 221.300653] x13: 0000000000000000 x12: 000000000000000b
[ 221.305952] x11: 0000000000000010 x10: 0101010101010101
[ 221.311251] x9 : 0000000000000425 x8 : ffffa85251c08110
[ 221.316550] x7 : ffff800043c2ba78 x6 : ffffa85251c08110
[ 221.321848] x5 : ffff800043c2ba68 x4 : ffff800043c2ba78
[ 221.327146] x3 : dead000000000100 x2 : dead000000000122
[ 221.332445] x1 : e159eb2802a92900 x0 : 0000000000000003
[ 221.337745] Call trace:
[ 221.340180] crypto_unregister_alg+0xe8/0xf0
[ 221.344439] crypto_unregister_skciphers+0x4c/0x60
[ 221.349222] aes_exit+0x5c/0x98 [aes_ce_blk]
[ 221.353481] cpu_feature_match_AES_init+0xb4/0x1000 [aes_ce_blk]
[ 221.359480] do_one_initcall+0x54/0x290
[ 221.363308] do_init_module+0x50/0x1fc
[ 221.367049] load_module+0x1a48/0x2008
[ 221.370786] __do_sys_finit_module+0x100/0x118
[ 221.375217] __arm64_sys_finit_module+0x28/0x38
[ 221.379735] el0_svc_common.constprop.3+0x80/0x1f8
[ 221.384512] el0_svc_handler+0x34/0xb0
[ 221.388250] el0_svc+0x10/0x180
[ 221.391381] Code: aa1503e0 97ede3df 12800020 17fffff4 (d4210000)
[ 221.397465] ---[ end trace 1ac9e656a151d682 ]---
[ 7418.231746] ------------[ cut here ]------------

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