Vulnerability-Lookup

GHSA-H8W2-MJC7-282F

Vulnerability from github – Published: 2026-08-15 06:32 – Updated: 2026-08-15 06:32

Details

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

drm/syncobj: Fix memory leak in drm_syncobj_find_fence()

Commit 18226ba52159 ("drm/syncobj: reject invalid flags in drm_syncobj_find_fence") forgot to take into account the fact that drm_syncobj_find() takes a reference to syncobj and returns early without dropping the reference, leading to memory leaks.

Reported by: Sam Spencer sam.spencer@arm.com

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{
  "affected": [],
  "aliases": [
    "CVE-2026-74393"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-15T06:22:41Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/syncobj: Fix memory leak in drm_syncobj_find_fence()\n\nCommit 18226ba52159 (\"drm/syncobj: reject invalid flags in\ndrm_syncobj_find_fence\") forgot to take into account the fact that\ndrm_syncobj_find() takes a reference to syncobj and returns early\nwithout dropping the reference, leading to memory leaks.\n\nReported by: Sam Spencer \u003csam.spencer@arm.com\u003e",
  "id": "GHSA-h8w2-mjc7-282f",
  "modified": "2026-08-15T06:32:32Z",
  "published": "2026-08-15T06:32:32Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-74393"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5c5994a1204743fa55e4c198ed93a6c36f21cd1f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7471006cd854d159723344be809e8287a2d75502"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e245f3491bf30a758786a4424854f61fee472308"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e5b93bd6fdb92aa5e4689715d7e8487d9ce66a38"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-74393 (GCVE-0-2026-74393)

Vulnerability from cvelistv5 – Published: 2026-08-15 05:59 – Updated: 2026-08-17 05:18

Title

drm/syncobj: Fix memory leak in drm_syncobj_find_fence()

Summary

In the Linux kernel, the following vulnerability has been resolved: drm/syncobj: Fix memory leak in drm_syncobj_find_fence() Commit 18226ba52159 ("drm/syncobj: reject invalid flags in drm_syncobj_find_fence") forgot to take into account the fact that drm_syncobj_find() takes a reference to syncobj and returns early without dropping the reference, leading to memory leaks. Reported by: Sam Spencer <sam.spencer@arm.com>

Severity

No CVSS data available.

Assigner

Linux mitre root

References

4 references

URL	Tags
https://git.kernel.org/stable/c/e245f3491bf30a758…
https://git.kernel.org/stable/c/7471006cd854d1597…
https://git.kernel.org/stable/c/5c5994a1204743fa5…
https://git.kernel.org/stable/c/e5b93bd6fdb92aa5e…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 18226ba52159257d4c2f777a168cc09adb3c1ac0 , < e245f3491bf30a758786a4424854f61fee472308 (git) Affected: 18226ba52159257d4c2f777a168cc09adb3c1ac0 , < 7471006cd854d159723344be809e8287a2d75502 (git) Affected: 18226ba52159257d4c2f777a168cc09adb3c1ac0 , < 5c5994a1204743fa55e4c198ed93a6c36f21cd1f (git) Affected: 18226ba52159257d4c2f777a168cc09adb3c1ac0 , < e5b93bd6fdb92aa5e4689715d7e8487d9ce66a38 (git)
Linux	Linux	Affected: 6.9 Unaffected: 0 , < 6.9 (semver) Unaffected: 6.12.97 , ≤ 6.12.* (semver) Unaffected: 6.18.40 , ≤ 6.18.* (semver) Unaffected: 7.1.5 , ≤ 7.1.* (semver) Unaffected: 7.2 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/drm_syncobj.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
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              "status": "affected",
              "version": "18226ba52159257d4c2f777a168cc09adb3c1ac0",
              "versionType": "git"
            },
            {
              "lessThan": "7471006cd854d159723344be809e8287a2d75502",
              "status": "affected",
              "version": "18226ba52159257d4c2f777a168cc09adb3c1ac0",
              "versionType": "git"
            },
            {
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            }
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        },
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          "product": "Linux",
          "programFiles": [
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          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
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              "version": "6.9"
            },
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              "lessThan": "6.9",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.97",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.40",
              "versionType": "semver"
            },
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              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
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                  "versionEndExcluding": "6.12.97",
                  "versionStartIncluding": "6.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "vulnerable": true
                },
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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/syncobj: Fix memory leak in drm_syncobj_find_fence()\n\nCommit 18226ba52159 (\"drm/syncobj: reject invalid flags in\ndrm_syncobj_find_fence\") forgot to take into account the fact that\ndrm_syncobj_find() takes a reference to syncobj and returns early\nwithout dropping the reference, leading to memory leaks.\n\nReported by: Sam Spencer \u003csam.spencer@arm.com\u003e"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-17T05:18:32.271Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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          "url": "https://git.kernel.org/stable/c/e5b93bd6fdb92aa5e4689715d7e8487d9ce66a38"
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      "title": "drm/syncobj: Fix memory leak in drm_syncobj_find_fence()",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-74393",
    "datePublished": "2026-08-15T05:59:06.470Z",
    "dateReserved": "2026-08-15T05:44:03.891Z",
    "dateUpdated": "2026-08-17T05:18:32.271Z",
    "state": "PUBLISHED"
  },
  "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.

Action not permitted

GHSA-H8W2-MJC7-282F

CVE-2026-74393 (GCVE-0-2026-74393)

Tags

Sightings

Nomenclature