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drm/msm: Fix task_struct reference leak in recover_worker

Type: advisorySources: OSV

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/

Products
Kernel
Affected versions
Not specified
Fixed versions
6.18.52, 7.2.6
CVEs
CVE-2026-93059
Confirmed fixed CVEs
Not specified
Updated in this feed
3 Nov 2026, 22:40 UTC · Revision 1

Source evidence

drm/msm: Fix task_struct reference leak in recover_worker

core-osv · Original source

Published 17 Sept 2026, 16:10 UTC

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/

osv:CVE-2026-93059

Kernel

Fixed versions: 6.18.52, 7.2.6

Complete source record
{
  "id": "098f9e6fd391863fb4a7bf6dcb6cabb2c37ca07fd71c12ac917e4f5c6a91700c",
  "url": "https://osv.dev/vulnerability/CVE-2026-93059",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "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/",
    "evidence": "osv:CVE-2026-93059",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.18.52",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "7.2.6",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2026-93059",
      "aliases": [
        "CVE-2026-93059"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "25654a1756a4ace072404e89882d7ba8391900bd"
                },
                {
                  "fixed": "6c472fde2c8096e16bb46b0605adda2488f300c0"
                },
                {
                  "fixed": "d684f756d029d81db1cd64cd9645556e53fcc784"
                },
                {
                  "fixed": "40b793714ad8f393ab3d469f9d00b20ebda46257"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-93059.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.17.0"
                },
                {
                  "fixed": "6.18.52"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.19.0"
                },
                {
                  "fixed": "7.2.6"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-93059.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:31.969230766Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/40b793714ad8f393ab3d469f9d00b20ebda46257",
        "https://git.kernel.org/stable/c/6c472fde2c8096e16bb46b0605adda2488f300c0",
        "https://git.kernel.org/stable/c/d684f756d029d81db1cd64cd9645556e53fcc784",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93059.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-93059",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93059.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-93059",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 499172,
  "published_at": "2026-09-17T16:10:46.457+00:00"
}