CVE-2022-50287 (GCVE-0-2022-50287)
Vulnerability from cvelistv5
Published
2025-09-15 14:21
Modified
2025-09-15 14:21
Severity ?
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)
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1382901f75a5a7dc8eac05059fd0c7816def4eae
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4758d04014cfe6cdb6e9b4738d1d6728487bbb3a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7c852e8f93f04e57c1e3883caa72542469c6c4c4
Impacted products
Vendor Product Version
Linux Linux Version: a87d0a84760726445dcc0f0177623f0d683f3559
Version: a87d0a84760726445dcc0f0177623f0d683f3559
Version: a87d0a84760726445dcc0f0177623f0d683f3559
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   Linux Linux Version: 5.19
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{
  "containers": {
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      "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": [
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              "versionType": "git"
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          "product": "Linux",
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          "vendor": "Linux",
          "versions": [
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              "version": "5.19"
            },
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              "version": "0",
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              "lessThanOrEqual": "6.0.*",
              "status": "unaffected",
              "version": "6.0.16",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.2",
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              "version": "6.2",
              "versionType": "original_commit_for_fix"
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      ],
      "cpeApplicability": [
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                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
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      ],
      "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"
      },
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          "url": "https://git.kernel.org/stable/c/4758d04014cfe6cdb6e9b4738d1d6728487bbb3a"
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          "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"
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    }
  },
  "cveMetadata": {
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    "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",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-50287\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-09-15T15:15:39.907\",\"lastModified\":\"2025-09-15T15:22:27.090\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"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)\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/1382901f75a5a7dc8eac05059fd0c7816def4eae\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/4758d04014cfe6cdb6e9b4738d1d6728487bbb3a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/7c852e8f93f04e57c1e3883caa72542469c6c4c4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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