CVE-2026-93059 (GCVE-0-2026-93059)
Vulnerability from cvelistv5
Published
2026-09-17 16:10
Modified
2026-10-19 09:04
Severity ?
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/
References
Impacted products
Vendor Product Version
Linux Linux Version: 25654a1756a4ace072404e89882d7ba8391900bd
Version: 25654a1756a4ace072404e89882d7ba8391900bd
Version: 25654a1756a4ace072404e89882d7ba8391900bd
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{
  "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": [
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              "status": "affected",
              "version": "25654a1756a4ace072404e89882d7ba8391900bd",
              "versionType": "git"
            },
            {
              "lessThan": "d684f756d029d81db1cd64cd9645556e53fcc784",
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              "version": "25654a1756a4ace072404e89882d7ba8391900bd",
              "versionType": "git"
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              "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",
              "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:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "6.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.3",
                  "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": "2026-10-19T09:04:55.257Z",
        "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": "2026-10-19T09:04:55.257Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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