Vulnerability-Lookup

GHSA-785W-94X7-R876

Vulnerability from github – Published: 2026-09-17 18:32 – Updated: 2026-09-17 18:32

Details

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

drm/msm: Fix task_struct reference leak in recover_worker

get_pid_task() increments the task reference count, but the corresponding put_task_struct() was missing in the else branch, leaking a reference on every GPU hang recovery.

Patchwork: https://patchwork.freedesktop.org/patch/730662/

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-93059"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-17T17:17:59Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/msm: Fix task_struct reference leak in recover_worker\n\nget_pid_task() increments the task reference count, but the\ncorresponding put_task_struct() was missing in the else branch,\nleaking a reference on every GPU hang recovery.\n\nPatchwork: https://patchwork.freedesktop.org/patch/730662/",
  "id": "GHSA-785w-94x7-r876",
  "modified": "2026-09-17T18:32:08Z",
  "published": "2026-09-17T18:32:08Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-93059"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/40b793714ad8f393ab3d469f9d00b20ebda46257"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6c472fde2c8096e16bb46b0605adda2488f300c0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d684f756d029d81db1cd64cd9645556e53fcc784"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-93059 (GCVE-0-2026-93059)

Vulnerability from cvelistv5 – Published: 2026-09-17 16:10 – Updated: 2026-09-17 16:10

Title

drm/msm: Fix task_struct reference leak in recover_worker

Summary

In the Linux kernel, the following vulnerability has been resolved: drm/msm: Fix task_struct reference leak in recover_worker get_pid_task() increments the task reference count, but the corresponding put_task_struct() was missing in the else branch, leaking a reference on every GPU hang recovery. Patchwork: https://patchwork.freedesktop.org/patch/730662/

Severity

No CVSS data available.

Assigner

Linux mitre root

References

3 references

URL	Tags
https://git.kernel.org/stable/c/6c472fde2c8096e16…
https://git.kernel.org/stable/c/d684f756d029d81db…
https://git.kernel.org/stable/c/40b793714ad8f393a…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 25654a1756a4ace072404e89882d7ba8391900bd , < 6c472fde2c8096e16bb46b0605adda2488f300c0 (git) Affected: 25654a1756a4ace072404e89882d7ba8391900bd , < d684f756d029d81db1cd64cd9645556e53fcc784 (git) Affected: 25654a1756a4ace072404e89882d7ba8391900bd , < 40b793714ad8f393ab3d469f9d00b20ebda46257 (git)
Linux	Linux	Affected: 6.17 Unaffected: 0 , < 6.17 (semver) Unaffected: 6.18.52 , ≤ 6.18.* (semver) Unaffected: 7.2.6 , ≤ 7.2.* (semver) Unaffected: 7.3-rc1 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/msm/msm_gpu.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "6c472fde2c8096e16bb46b0605adda2488f300c0",
              "status": "affected",
              "version": "25654a1756a4ace072404e89882d7ba8391900bd",
              "versionType": "git"
            },
            {
              "lessThan": "d684f756d029d81db1cd64cd9645556e53fcc784",
              "status": "affected",
              "version": "25654a1756a4ace072404e89882d7ba8391900bd",
              "versionType": "git"
            },
            {
              "lessThan": "40b793714ad8f393ab3d469f9d00b20ebda46257",
              "status": "affected",
              "version": "25654a1756a4ace072404e89882d7ba8391900bd",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/msm/msm_gpu.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.17"
            },
            {
              "lessThan": "6.17",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.52",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.52",
                  "versionStartIncluding": "6.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2.6",
                  "versionStartIncluding": "6.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.3-rc1",
                  "versionStartIncluding": "6.17",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/msm: Fix task_struct reference leak in recover_worker\n\nget_pid_task() increments the task reference count, but the\ncorresponding put_task_struct() was missing in the else branch,\nleaking a reference on every GPU hang recovery.\n\nPatchwork: https://patchwork.freedesktop.org/patch/730662/"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-17T16:10:46.457Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/6c472fde2c8096e16bb46b0605adda2488f300c0"
        },
        {
          "url": "https://git.kernel.org/stable/c/d684f756d029d81db1cd64cd9645556e53fcc784"
        },
        {
          "url": "https://git.kernel.org/stable/c/40b793714ad8f393ab3d469f9d00b20ebda46257"
        }
      ],
      "title": "drm/msm: Fix task_struct reference leak in recover_worker",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-93059",
    "datePublished": "2026-09-17T16:10:46.457Z",
    "dateReserved": "2026-09-17T15:57:05.659Z",
    "dateUpdated": "2026-09-17T16:10:46.457Z",
    "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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

GHSA-785W-94X7-R876

CVE-2026-93059 (GCVE-0-2026-93059)

Tags

Sightings

Nomenclature

Related by attack behaviour