Vulnerability-Lookup

GHSA-8295-HCJH-5W9P

Vulnerability from github – Published: 2025-03-27 18:31 – Updated: 2025-04-15 18:31

Details

In the Linux kernel, the following vulnerability has been resolved:

drm/i915: Fix potential bit_17 double-free

A userspace with multiple threads racing I915_GEM_SET_TILING to set the tiling to I915_TILING_NONE could trigger a double free of the bit_17 bitmask. (Or conversely leak memory on the transition to tiled.) Move allocation/free'ing of the bitmask within the section protected by the obj lock.

[tursulin: Correct fixes tag and added cc stable.] (cherry picked from commit 10e0cbaaf1104f449d695c80bcacf930dcd3c42e)

Severity

7.8 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2023-52930"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-415"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-03-27T17:15:42Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/i915: Fix potential bit_17 double-free\n\nA userspace with multiple threads racing I915_GEM_SET_TILING to set the\ntiling to I915_TILING_NONE could trigger a double free of the bit_17\nbitmask.  (Or conversely leak memory on the transition to tiled.)  Move\nallocation/free\u0027ing of the bitmask within the section protected by the\nobj lock.\n\n[tursulin: Correct fixes tag and added cc stable.]\n(cherry picked from commit 10e0cbaaf1104f449d695c80bcacf930dcd3c42e)",
  "id": "GHSA-8295-hcjh-5w9p",
  "modified": "2025-04-15T18:31:41Z",
  "published": "2025-03-27T18:31:25Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52930"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0769f997a7b6d5cb8336db0b4ec3d2d311b8097c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7057a8f126f14f14b040faecfa220fd27c6c2f85"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b591abac78e25269b12e3d7170c99463f8c5cb02"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e3ebc3e23bd9028a8a9a26cbc5985f99be445f65"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2023-52930 (GCVE-0-2023-52930)

Vulnerability from cvelistv5 – Published: 2025-03-27 16:37 – Updated: 2026-08-05 09:12

Title

drm/i915: Fix potential bit_17 double-free

Summary

In the Linux kernel, the following vulnerability has been resolved: drm/i915: Fix potential bit_17 double-free A userspace with multiple threads racing I915_GEM_SET_TILING to set the tiling to I915_TILING_NONE could trigger a double free of the bit_17 bitmask. (Or conversely leak memory on the transition to tiled.) Move allocation/free'ing of the bitmask within the section protected by the obj lock. [tursulin: Correct fixes tag and added cc stable.] (cherry picked from commit 10e0cbaaf1104f449d695c80bcacf930dcd3c42e)

Severity

7.8 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-10-01 19:25 UTC

CWE

CWE-415 - Double Free

Assigner

Linux mitre root

References

4 references

URL	Tags
https://git.kernel.org/stable/c/b591abac78e25269b…
https://git.kernel.org/stable/c/e3ebc3e23bd9028a8…
https://git.kernel.org/stable/c/0769f997a7b6d5cb8…
https://git.kernel.org/stable/c/7057a8f126f14f14b…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 2850748ef8763ab46958e43a4d1c445f29eeb37d , < b591abac78e25269b12e3d7170c99463f8c5cb02 (git) Affected: 2850748ef8763ab46958e43a4d1c445f29eeb37d , < e3ebc3e23bd9028a8a9a26cbc5985f99be445f65 (git) Affected: 2850748ef8763ab46958e43a4d1c445f29eeb37d , < 0769f997a7b6d5cb8336db0b4ec3d2d311b8097c (git) Affected: 2850748ef8763ab46958e43a4d1c445f29eeb37d , < 7057a8f126f14f14b040faecfa220fd27c6c2f85 (git)
Linux	Linux	Affected: 5.5 Unaffected: 0 , < 5.5 (semver) Unaffected: 5.10.168 , ≤ 5.10.* (semver) Unaffected: 5.15.93 , ≤ 5.15.* (semver) Unaffected: 6.1.11 , ≤ 6.1.* (semver) Unaffected: 6.2 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 7.8,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2023-52930",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-10-01T19:25:16.883410Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-415",
                "description": "CWE-415 Double Free",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-10-01T19:26:36.577Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/i915/gem/i915_gem_tiling.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "b591abac78e25269b12e3d7170c99463f8c5cb02",
              "status": "affected",
              "version": "2850748ef8763ab46958e43a4d1c445f29eeb37d",
              "versionType": "git"
            },
            {
              "lessThan": "e3ebc3e23bd9028a8a9a26cbc5985f99be445f65",
              "status": "affected",
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              "versionType": "git"
            },
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              "status": "affected",
              "version": "2850748ef8763ab46958e43a4d1c445f29eeb37d",
              "versionType": "git"
            },
            {
              "lessThan": "7057a8f126f14f14b040faecfa220fd27c6c2f85",
              "status": "affected",
              "version": "2850748ef8763ab46958e43a4d1c445f29eeb37d",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/i915/gem/i915_gem_tiling.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.5"
            },
            {
              "lessThan": "5.5",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.168",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.93",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.11",
              "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": "5.10.168",
                  "versionStartIncluding": "5.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.93",
                  "versionStartIncluding": "5.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.11",
                  "versionStartIncluding": "5.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.2",
                  "versionStartIncluding": "5.5",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/i915: Fix potential bit_17 double-free\n\nA userspace with multiple threads racing I915_GEM_SET_TILING to set the\ntiling to I915_TILING_NONE could trigger a double free of the bit_17\nbitmask.  (Or conversely leak memory on the transition to tiled.)  Move\nallocation/free\u0027ing of the bitmask within the section protected by the\nobj lock.\n\n[tursulin: Correct fixes tag and added cc stable.]\n(cherry picked from commit 10e0cbaaf1104f449d695c80bcacf930dcd3c42e)"
        }
      ],
      "metrics": [
        {
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            "baseScore": 7.8,
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            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The bug is reached only via the local DRM ioctl I915_GEM_SET_TILING on /dev/dri/renderD* or card*, not via network packet processing or adjacent-link protocols.\nAC:L - An attacker fully controls both sides of the race by issuing concurrent I915_GEM_SET_TILING ioctls from multiple threads on the same GEM object after first establishing a tiled state that allocates bit_17.\nPR:L - I915_GEM_SET_TILING is DRM_RENDER_ALLOW and is usable by an unprivileged local user with access to an i915 render node; it does not require CAP_SYS_ADMIN, DRM_MASTER, or root in the init namespace.\nUI:N - Exploitation requires only the attacker\u0027s own ioctls and threads; no victim action such as opening a file or mounting a filesystem is needed.\nS:U - This is a host-kernel heap corruption bug within the same OS security authority and does not cross a VM, IOMMU, or other security boundary.\nC:H - A kernel heap double-free of the bit_17 bitmap enables classic allocator metadata corruption and use-after-free primitives that can be leveraged for arbitrary kernel memory disclosure.\nI:H - The same double-free/use-after-free heap corruption provides write primitives suitable for control-flow hijacking and arbitrary kernel memory modification / privilege escalation.\nA:H - Double-free of kernel heap memory can immediately oops/panic the kernel, and use-after-free paths similarly cause high-availability impact even when not fully exploited for code execution."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T09:12:06.760Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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      "title": "drm/i915: Fix potential bit_17 double-free",
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    "cveId": "CVE-2023-52930",
    "datePublished": "2025-03-27T16:37:12.302Z",
    "dateReserved": "2024-08-21T06:07:11.019Z",
    "dateUpdated": "2026-08-05T09:12:06.760Z",
    "state": "PUBLISHED"
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}

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.

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.

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GHSA-8295-HCJH-5W9P

CVE-2023-52930 (GCVE-0-2023-52930)

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