{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "a04a1198088a1378d0389c250cc684f649bcc91e"
            },
            {
              "fixed": "82d3acee88593e3d9e71cad4b7d6b3cf70de9d07"
            },
            {
              "fixed": "5b906f31e977286888a9e31282589b545b249139"
            },
            {
              "fixed": "a010cadaf5727b8417f62fe9021fcef14a5f9b51"
            },
            {
              "fixed": "4a9b16541ad3faf8bccb398532bf3f8b6bbf1188"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.8.0"
            },
            {
              "fixed": "6.12.92"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.34"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.0.11"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64111.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nlsm: hold cred_guard_mutex for lsm_set_self_attr()\n\nJust as proc_pid_attr_write() already does before calling the LSM\nhook. This only matters for SELinux and AppArmor which check\nwhether the process is being ptraced and if so, whether to\nallow the transition.",
  "id": "CVE-2026-64111",
  "modified": "2026-07-22T05:30:02.675527148Z",
  "published": "2026-07-19T15:40:13.007Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4a9b16541ad3faf8bccb398532bf3f8b6bbf1188"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5b906f31e977286888a9e31282589b545b249139"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/82d3acee88593e3d9e71cad4b7d6b3cf70de9d07"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a010cadaf5727b8417f62fe9021fcef14a5f9b51"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64111.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-64111"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "lsm: hold cred_guard_mutex for lsm_set_self_attr()"
}