CVE-2025-38079 (GCVE-0-2025-38079)
Vulnerability from cvelistv5
Published
2025-06-18 09:33
Modified
2025-06-18 09:33
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: crypto: algif_hash - fix double free in hash_accept If accept(2) is called on socket type algif_hash with MSG_MORE flag set and crypto_ahash_import fails, sk2 is freed. However, it is also freed in af_alg_release, leading to slab-use-after-free error.
References
Impacted products
Vendor Product Version
Linux Linux Version: fe869cdb89c95d060c77eea20204d6c91f233b53
Version: fe869cdb89c95d060c77eea20204d6c91f233b53
Version: fe869cdb89c95d060c77eea20204d6c91f233b53
Version: fe869cdb89c95d060c77eea20204d6c91f233b53
Version: fe869cdb89c95d060c77eea20204d6c91f233b53
Version: fe869cdb89c95d060c77eea20204d6c91f233b53
Version: fe869cdb89c95d060c77eea20204d6c91f233b53
Version: fe869cdb89c95d060c77eea20204d6c91f233b53
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{
  "containers": {
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        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "crypto/algif_hash.c"
          ],
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          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "version": "2.6.38"
            },
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
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            {
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              "status": "unaffected",
              "version": "5.4.294",
              "versionType": "semver"
            },
            {
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              "status": "unaffected",
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              "versionType": "semver"
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              "status": "unaffected",
              "version": "5.15.185",
              "versionType": "semver"
            },
            {
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              "status": "unaffected",
              "version": "6.1.141",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.93",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.31",
              "versionType": "semver"
            },
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              "status": "unaffected",
              "version": "6.14.9",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.15",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "vulnerable": true
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              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: algif_hash - fix double free in hash_accept\n\nIf accept(2) is called on socket type algif_hash with\nMSG_MORE flag set and crypto_ahash_import fails,\nsk2 is freed. However, it is also freed in af_alg_release,\nleading to slab-use-after-free error."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-06-18T09:33:53.251Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/5bff312b59b3f2a54ff504e4f4e47272b64f3633"
        },
        {
          "url": "https://git.kernel.org/stable/c/bf7bba75b91539e93615f560893a599c1e1c98bf"
        },
        {
          "url": "https://git.kernel.org/stable/c/c3059d58f79fdfb2201249c2741514e34562b547"
        },
        {
          "url": "https://git.kernel.org/stable/c/f0f3d09f53534ea385d55ced408f2b67059b16e4"
        },
        {
          "url": "https://git.kernel.org/stable/c/134daaba93193df9e988524b5cd2f52d15eb1993"
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        },
        {
          "url": "https://git.kernel.org/stable/c/b2df03ed4052e97126267e8c13ad4204ea6ba9b6"
        }
      ],
      "title": "crypto: algif_hash - fix double free in hash_accept",
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-38079",
    "datePublished": "2025-06-18T09:33:53.251Z",
    "dateReserved": "2025-04-16T04:51:23.980Z",
    "dateUpdated": "2025-06-18T09:33:53.251Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-38079\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-06-18T10:15:41.510\",\"lastModified\":\"2025-06-18T13:46:52.973\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ncrypto: algif_hash - fix double free in hash_accept\\n\\nIf accept(2) is called on socket type algif_hash with\\nMSG_MORE flag set and crypto_ahash_import fails,\\nsk2 is freed. However, it is also freed in af_alg_release,\\nleading to slab-use-after-free error.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: crypto: algif_hash - correcci\u00f3n de doble liberaci\u00f3n en hash_accept. Si se ejecuta accept(2) en el socket tipo algif_hash con el indicador MSG_MORE activado y crypto_ahash_import falla, se libera sk2. Sin embargo, tambi\u00e9n se libera en af_alg_release, lo que genera un error de uso de slab despu\u00e9s de la liberaci\u00f3n.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/0346f4b742345d1c733c977f3a7aef5a6419a967\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/134daaba93193df9e988524b5cd2f52d15eb1993\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/2f45a8d64fb4ed4830a4b3273834ecd6ca504896\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/5bff312b59b3f2a54ff504e4f4e47272b64f3633\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/b2df03ed4052e97126267e8c13ad4204ea6ba9b6\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/bf7bba75b91539e93615f560893a599c1e1c98bf\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/c3059d58f79fdfb2201249c2741514e34562b547\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f0f3d09f53534ea385d55ced408f2b67059b16e4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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