GHSA-97QF-47RV-VFVF
Vulnerability from github – Published: 2026-09-04 18:31 – Updated: 2026-09-04 18:31In the Linux kernel, the following vulnerability has been resolved:
selinux: require every boolean value to be defined
p_bools.nprim comes from the policy image independently of how many booleans follow it, and cond_index_bool() fills bool_val_to_struct[] at value - 1, so a count larger than the values present leaves NULL entries. Every user of that array then walks it by index and dereferences each entry: cond_evaluate_expr() on the access-vector path, security_get_bools() and security_get_bool_value() behind selinuxfs, and security_set_bools(). A sparse class value is absorbed by policydb_class_isvalid() and its siblings; booleans have no such predicate, and no consumer that could use one.
Reject a boolean value that no boolean defines, once, where the array is built. Conforming policies define every boolean they declare and are unaffected.
{
"affected": [],
"aliases": [
"CVE-2026-80913"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-04T18:18:01Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nselinux: require every boolean value to be defined\n\np_bools.nprim comes from the policy image independently of how many\nbooleans follow it, and cond_index_bool() fills bool_val_to_struct[] at\nvalue - 1, so a count larger than the values present leaves NULL entries.\nEvery user of that array then walks it by index and dereferences each\nentry: cond_evaluate_expr() on the access-vector path,\nsecurity_get_bools() and security_get_bool_value() behind selinuxfs, and\nsecurity_set_bools(). A sparse class value is absorbed by\npolicydb_class_isvalid() and its siblings; booleans have no such\npredicate, and no consumer that could use one.\n\nReject a boolean value that no boolean defines, once, where the array is\nbuilt. Conforming policies define every boolean they declare and are\nunaffected.",
"id": "GHSA-97qf-47rv-vfvf",
"modified": "2026-09-04T18:31:34Z",
"published": "2026-09-04T18:31:34Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-80913"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/3161daa3f1e3ca68f8b2b8fa01720b5a8dcc6b40"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/3938c8494d3c5d84a53fd7d1966ae9dde46cb5f8"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/42a7107f99d86a7524c37f108047dfa3db096ab5"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/4d0ece18e648bd4362704fd087249ac697f2b7fb"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/4dfb997c60f7951011d3dcbee926e3a7f80d8a76"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/740012aebdb8311332bf66e2aabf453ba73c2c45"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/a93d37a09b863810653f93d371fb197457d59deb"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ed901e88aa3fb3d5d7b0b52c2ee3073209df9bec"
}
],
"schema_version": "1.4.0",
"severity": []
}
Sightings
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|---|
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