CVE-2025-39920 (GCVE-0-2025-39920)
Vulnerability from cvelistv5
Published
2025-10-01 07:55
Modified
2025-10-01 07:55
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: pcmcia: Add error handling for add_interval() in do_validate_mem() In the do_validate_mem(), the call to add_interval() does not handle errors. If kmalloc() fails in add_interval(), it could result in a null pointer being inserted into the linked list, leading to illegal memory access when sub_interval() is called next. This patch adds an error handling for the add_interval(). If add_interval() returns an error, the function will return early with the error code.
References
Impacted products
Vendor Product Version
Linux Linux Version: 7b4884ca8853a638df0eb5d251d80d67777b8b1a
Version: 7b4884ca8853a638df0eb5d251d80d67777b8b1a
Version: 7b4884ca8853a638df0eb5d251d80d67777b8b1a
Version: 7b4884ca8853a638df0eb5d251d80d67777b8b1a
Version: 7b4884ca8853a638df0eb5d251d80d67777b8b1a
Version: 7b4884ca8853a638df0eb5d251d80d67777b8b1a
Version: 7b4884ca8853a638df0eb5d251d80d67777b8b1a
Version: 7b4884ca8853a638df0eb5d251d80d67777b8b1a
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{
  "containers": {
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        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/pcmcia/rsrc_nonstatic.c"
          ],
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          "programFiles": [
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          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.34"
            },
            {
              "lessThan": "2.6.34",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.299",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.243",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.192",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.151",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.105",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.46",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.16.*",
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              "version": "6.16.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.17",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "2.6.34",
                  "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\npcmcia: Add error handling for add_interval() in do_validate_mem()\n\nIn the do_validate_mem(), the call to add_interval() does not\nhandle errors. If kmalloc() fails in add_interval(), it could\nresult in a null pointer being inserted into the linked list,\nleading to illegal memory access when sub_interval() is called\nnext.\n\nThis patch adds an error handling for the add_interval(). If\nadd_interval() returns an error, the function will return early\nwith the error code."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-10-01T07:55:15.731Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/5b60ed401b47897352c520bc724c85aa908dedcc"
        },
        {
          "url": "https://git.kernel.org/stable/c/ae184024ef31423e5beb44cf4f52999bbcf2fe5b"
        },
        {
          "url": "https://git.kernel.org/stable/c/85be7ef8c8e792a414940a38d94565dd48d2f236"
        },
        {
          "url": "https://git.kernel.org/stable/c/06b26e3099207c94b3d1be8565aedc6edc4f0a60"
        },
        {
          "url": "https://git.kernel.org/stable/c/8699358b6ac99b8ccc97ed9e6e3669ef8958ef7b"
        },
        {
          "url": "https://git.kernel.org/stable/c/289b58f8ff3198d091074a751d6b8f6827726f3e"
        },
        {
          "url": "https://git.kernel.org/stable/c/369bf6e241506583f4ee7593c53b92e5a9f271b4"
        },
        {
          "url": "https://git.kernel.org/stable/c/4a81f78caa53e0633cf311ca1526377d9bff7479"
        }
      ],
      "title": "pcmcia: Add error handling for add_interval() in do_validate_mem()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-39920",
    "datePublished": "2025-10-01T07:55:15.731Z",
    "dateReserved": "2025-04-16T07:20:57.147Z",
    "dateUpdated": "2025-10-01T07:55:15.731Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-39920\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-10-01T08:15:35.237\",\"lastModified\":\"2025-10-02T19:12:17.160\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\npcmcia: Add error handling for add_interval() in do_validate_mem()\\n\\nIn the do_validate_mem(), the call to add_interval() does not\\nhandle errors. If kmalloc() fails in add_interval(), it could\\nresult in a null pointer being inserted into the linked list,\\nleading to illegal memory access when sub_interval() is called\\nnext.\\n\\nThis patch adds an error handling for the add_interval(). If\\nadd_interval() returns an error, the function will return early\\nwith the error code.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/06b26e3099207c94b3d1be8565aedc6edc4f0a60\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/289b58f8ff3198d091074a751d6b8f6827726f3e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/369bf6e241506583f4ee7593c53b92e5a9f271b4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/4a81f78caa53e0633cf311ca1526377d9bff7479\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/5b60ed401b47897352c520bc724c85aa908dedcc\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/85be7ef8c8e792a414940a38d94565dd48d2f236\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/8699358b6ac99b8ccc97ed9e6e3669ef8958ef7b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/ae184024ef31423e5beb44cf4f52999bbcf2fe5b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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