CVE-2022-50287 (GCVE-0-2022-50287)

Vulnerability from cvelistv5 – Published: 2025-09-15 14:21 – Updated: 2025-09-15 14:21
VLAI?
Title
drm/i915/bios: fix a memory leak in generate_lfp_data_ptrs
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/i915/bios: fix a memory leak in generate_lfp_data_ptrs When (size != 0 || ptrs->lvds_ entries != 3), the program tries to free() the ptrs. However, the ptrs is not created by calling kzmalloc(), but is obtained by pointer offset operation. This may lead to memory leaks or undefined behavior. Fix this by replacing the arguments of kfree() with ptrs_block. (cherry picked from commit 7674cd0b7d28b952151c3df26bbfa7e07eb2b4ec)
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: a87d0a84760726445dcc0f0177623f0d683f3559 , < 4758d04014cfe6cdb6e9b4738d1d6728487bbb3a (git)
Affected: a87d0a84760726445dcc0f0177623f0d683f3559 , < 7c852e8f93f04e57c1e3883caa72542469c6c4c4 (git)
Affected: a87d0a84760726445dcc0f0177623f0d683f3559 , < 1382901f75a5a7dc8eac05059fd0c7816def4eae (git)
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    Linux Linux Affected: 5.19
Unaffected: 0 , < 5.19 (semver)
Unaffected: 6.0.16 , ≤ 6.0.* (semver)
Unaffected: 6.1.2 , ≤ 6.1.* (semver)
Unaffected: 6.2 , ≤ * (original_commit_for_fix)
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/i915/display/intel_bios.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "4758d04014cfe6cdb6e9b4738d1d6728487bbb3a",
              "status": "affected",
              "version": "a87d0a84760726445dcc0f0177623f0d683f3559",
              "versionType": "git"
            },
            {
              "lessThan": "7c852e8f93f04e57c1e3883caa72542469c6c4c4",
              "status": "affected",
              "version": "a87d0a84760726445dcc0f0177623f0d683f3559",
              "versionType": "git"
            },
            {
              "lessThan": "1382901f75a5a7dc8eac05059fd0c7816def4eae",
              "status": "affected",
              "version": "a87d0a84760726445dcc0f0177623f0d683f3559",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/i915/display/intel_bios.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.19"
            },
            {
              "lessThan": "5.19",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.0.*",
              "status": "unaffected",
              "version": "6.0.16",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.0.16",
                  "versionStartIncluding": "5.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.2",
                  "versionStartIncluding": "5.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.2",
                  "versionStartIncluding": "5.19",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/i915/bios: fix a memory leak in generate_lfp_data_ptrs\n\nWhen (size != 0 || ptrs-\u003elvds_ entries != 3), the program tries to\nfree() the ptrs. However, the ptrs is not created by calling kzmalloc(),\nbut is obtained by pointer offset operation.\nThis may lead to memory leaks or undefined behavior.\n\nFix this by replacing the arguments of kfree() with ptrs_block.\n\n(cherry picked from commit 7674cd0b7d28b952151c3df26bbfa7e07eb2b4ec)"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-09-15T14:21:23.403Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/4758d04014cfe6cdb6e9b4738d1d6728487bbb3a"
        },
        {
          "url": "https://git.kernel.org/stable/c/7c852e8f93f04e57c1e3883caa72542469c6c4c4"
        },
        {
          "url": "https://git.kernel.org/stable/c/1382901f75a5a7dc8eac05059fd0c7816def4eae"
        }
      ],
      "title": "drm/i915/bios: fix a memory leak in generate_lfp_data_ptrs",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50287",
    "datePublished": "2025-09-15T14:21:23.403Z",
    "dateReserved": "2025-09-15T13:58:00.977Z",
    "dateUpdated": "2025-09-15T14:21:23.403Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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