{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2026-53302",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-53302",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-06-26T19:40:58.636Z",
    "updatedAt": "2026-06-26T19:40:58.636Z",
    "importedAt": "2026-10-24T01:58:20.586Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "crypto: eip93 - fix hmac setkey algo selection",
      "summary": "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]",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "9739f5f93b7806a684713ba42e6ed2d1df7c8100",
              "status": "affected",
              "versionType": "git",
              "lessThan": "fc9310d79fdb117b369a01eb00f4fd5fb4849d4e"
            },
            {
              "version": "9739f5f93b7806a684713ba42e6ed2d1df7c8100",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ec226d3e58bb9f0e26a77346085b6b4d594d53d8"
            },
            {
              "version": "9739f5f93b7806a684713ba42e6ed2d1df7c8100",
              "status": "affected",
              "versionType": "git",
              "lessThan": "3ba3b02f897b14e34977e1886d95ffe64d907204"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "6.15",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "6.15"
            },
            {
              "version": "6.18.33",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.0.10",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.0.*"
            },
            {
              "version": "7.1",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}