143 lines
8.6 KiB
JSON
143 lines
8.6 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-53302",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2026-06-09T07:44:35.397Z",
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"datePublished": "2026-06-26T19:40:58.636Z",
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"dateUpdated": "2026-06-26T19:40:58.636Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-06-26T19:40:58.636Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: eip93 - fix hmac setkey algo selection\n\neip93_hmac_setkey() allocates a temporary ahash transform for\ncomputing HMAC ipad/opad key material. The allocation uses the\ndriver-specific cra_driver_name (e.g. \"sha256-eip93\") but passes\nCRYPTO_ALG_ASYNC as the mask, which excludes async algorithms.\n\nSince the EIP93 hash algorithms are the only ones registered\nunder those driver names and they are inherently async, the\nlookup is self-contradictory and always fails with -ENOENT.\n\nWhen called from the AEAD setkey path, this failure leaves the\nSA record partially initialized with zeroed digest fields. A\nsubsequent crypto operation then dereferences a NULL pointer in\nthe request context, resulting in a kernel panic:\n\n```\n pc : eip93_aead_handle_result+0xc8c/0x1240 [crypto_hw_eip93]\n lr : eip93_aead_handle_result+0xbec/0x1240 [crypto_hw_eip93]\n sp : ffffffc082feb820\n x29: ffffffc082feb820 x28: ffffff8011043980 x27: 0000000000000000\n x26: 0000000000000000 x25: ffffffc078da0bc8 x24: 0000000091043980\n x23: ffffff8004d59e50 x22: ffffff8004d59410 x21: ffffff8004d593c0\n x20: ffffff8004d593c0 x19: ffffff8004d4f300 x18: 0000000000000000\n x17: 0000000000000000 x16: 0000000000000000 x15: 0000007fda7aa498\n x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000\n x11: 0000000000000000 x10: fffffffff8127a80 x9 : 0000000000000000\n x8 : ffffff8004d4f380 x7 : 0000000000000000 x6 : 000000000000003f\n x5 : 0000000000000040 x4 : 0000000000000008 x3 : 0000000000000009\n x2 : 0000000000000008 x1 : 0000000028000003 x0 : ffffff8004d388c0\n Code: 910142b6 f94012e0 f9002aa0 f90006d3 (f9400740)\n```\n\nThe reported symbol eip93_aead_handle_result+0xc8c is a\nresolution artifact from static functions being merged under\nthe nearest exported symbol. Decoding the faulting sequence:\n\n```\n 910142b6 ADD X22, X21, #0x50\n f94012e0 LDR X0, [X23, #0x20]\n f9002aa0 STR X0, [X21, #0x50]\n f90006d3 STR X19, [X22, #0x8]\n f9400740 LDR X0, [X26, #0x8]\n```\n\nThe faulting LDR at [X26, #0x8] is loading ctx->flags\n(offset 8 in eip93_hash_ctx), where ctx has been resolved\nto NULL from a partially initialized or unreachable\ntransform context following the failed setkey.\n\nFix this by dropping the CRYPTO_ALG_ASYNC mask from the\ncrypto_alloc_ahash() call. The code already handles async\ncompletion correctly via crypto_wait_req(), so there is no\nrequirement to restrict the lookup to synchronous algorithms.\n\nNote that hashing a single 64-byte block through the hardware\nis likely slower than doing it in software due to the DMA\nround-trip overhead, but offloading it may still spare CPU\ncycles on the slower embedded cores where this IP is found.\n\n[Detailed investigation report of this bug]"
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/crypto/inside-secure/eip93/eip93-common.c"
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],
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"versions": [
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{
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"version": "9739f5f93b7806a684713ba42e6ed2d1df7c8100",
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"lessThan": "fc9310d79fdb117b369a01eb00f4fd5fb4849d4e",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "9739f5f93b7806a684713ba42e6ed2d1df7c8100",
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"lessThan": "ec226d3e58bb9f0e26a77346085b6b4d594d53d8",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "9739f5f93b7806a684713ba42e6ed2d1df7c8100",
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"lessThan": "3ba3b02f897b14e34977e1886d95ffe64d907204",
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"status": "affected",
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"versionType": "git"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/crypto/inside-secure/eip93/eip93-common.c"
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],
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"versions": [
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{
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"version": "6.15",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "6.15",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.18.33",
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"lessThanOrEqual": "6.18.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "7.0.10",
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"lessThanOrEqual": "7.0.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "7.1",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.15",
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"versionEndExcluding": "6.18.33"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.15",
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"versionEndExcluding": "7.0.10"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.15",
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"versionEndExcluding": "7.1"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/fc9310d79fdb117b369a01eb00f4fd5fb4849d4e"
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},
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{
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"url": "https://git.kernel.org/stable/c/ec226d3e58bb9f0e26a77346085b6b4d594d53d8"
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},
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{
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"url": "https://git.kernel.org/stable/c/3ba3b02f897b14e34977e1886d95ffe64d907204"
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}
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],
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"title": "crypto: eip93 - fix hmac setkey algo selection",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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}
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}
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} |