{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "55fcf09b3fe4325c9395ebbb0322a547a157ebc7"
            },
            {
              "fixed": "2002ff745db64ac83ee1bb9ff78196d2d68bfdb3"
            },
            {
              "fixed": "38d91446630a20ce8c2a981810deea81fd61a3b5"
            },
            {
              "fixed": "638213f2e6ea52c06a25861616781338d154db35"
            },
            {
              "fixed": "2b7ffd7921fcbfe408fb7b372e47454e45b1e6a7"
            },
            {
              "fixed": "a63011c009ea79439b800a05602b880eb4adbb05"
            },
            {
              "fixed": "acd5b09be98fd38b7392307880156fb0452a7276"
            },
            {
              "fixed": "1b995966c3ae5244751bdaee9bfe7e17567d4fbe"
            },
            {
              "fixed": "9a82dcd98b6e6e11cfd162410967951f12152528"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.6.23"
            },
            {
              "fixed": "5.10.266"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.217"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.184"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.153"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.105"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.46"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80757.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nselinux: reject a class permission count below its inherited common\n\nsecurity_get_permissions() maps an inherited common's permissions into\nan array sized by the class's own permissions.nprim, but class_read()\ntakes that nprim verbatim from the policy image and never checks that it\ncovers the common.  A class that inherits a common of N permissions while\ndeclaring a smaller nprim is accepted, and on load the common's\npermissions are written past the class-sized array -- an out-of-bounds\nheap write.\n\nReject a class whose permission count is below its inherited common's.\nWell-formed policies, where the class count already includes the\ninherited permissions, are unaffected.",
  "id": "CVE-2026-80757",
  "modified": "2026-09-05T03:30:34.388777786Z",
  "published": "2026-09-03T08:26:35.005Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1b995966c3ae5244751bdaee9bfe7e17567d4fbe"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2002ff745db64ac83ee1bb9ff78196d2d68bfdb3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2b7ffd7921fcbfe408fb7b372e47454e45b1e6a7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/38d91446630a20ce8c2a981810deea81fd61a3b5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/638213f2e6ea52c06a25861616781338d154db35"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9a82dcd98b6e6e11cfd162410967951f12152528"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a63011c009ea79439b800a05602b880eb4adbb05"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/acd5b09be98fd38b7392307880156fb0452a7276"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80757.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-80757"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "selinux: reject a class permission count below its inherited common"
}