Vulnerability-Lookup

GHSA-QMP7-W9R2-H28J

Vulnerability from github – Published: 2025-09-15 15:31 – Updated: 2025-12-03 21:30

Details

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

5.5 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2022-50287"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-401"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-09-15T15:15:39Z",
    "severity": "MODERATE"
  },
  "details": "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)",
  "id": "GHSA-qmp7-w9r2-h28j",
  "modified": "2025-12-03T21:30:59Z",
  "published": "2025-09-15T15:31:25Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50287"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1382901f75a5a7dc8eac05059fd0c7816def4eae"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4758d04014cfe6cdb6e9b4738d1d6728487bbb3a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7c852e8f93f04e57c1e3883caa72542469c6c4c4"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

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

Vulnerability from cvelistv5 – Published: 2025-09-15 14:21 – Updated: 2026-05-11 19:16

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

Linux mitre root

References

3 references

URL	Tags
https://git.kernel.org/stable/c/4758d04014cfe6cdb…
https://git.kernel.org/stable/c/7c852e8f93f04e57c…
https://git.kernel.org/stable/c/1382901f75a5a7dc8…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: a87d0a84760726445dcc0f0177623f0d683f3559 , < 4758d04014cfe6cdb6e9b4738d1d6728487bbb3a (git) Affected: a87d0a84760726445dcc0f0177623f0d683f3559 , < 7c852e8f93f04e57c1e3883caa72542469c6c4c4 (git) Affected: a87d0a84760726445dcc0f0177623f0d683f3559 , < 1382901f75a5a7dc8eac05059fd0c7816def4eae (git)
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": [
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          ],
          "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": "2026-05-11T19:16:24.812Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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        },
        {
          "url": "https://git.kernel.org/stable/c/1382901f75a5a7dc8eac05059fd0c7816def4eae"
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      ],
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  "cveMetadata": {
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    "datePublished": "2025-09-15T14:21:23.403Z",
    "dateReserved": "2025-09-15T13:58:00.977Z",
    "dateUpdated": "2026-05-11T19:16:24.812Z",
    "state": "PUBLISHED"
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  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
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.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
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.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

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