Unrated severityNVD Advisory· Published Jul 1, 2021· Updated Nov 3, 2025
CVE-2021-36086
CVE-2021-36086
Description
The CIL compiler in SELinux 3.2 has a use-after-free in cil_reset_classpermission (called from cil_reset_classperms_set and cil_reset_classperms_list).
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
5- SELinux/SELinuxdescription
- Range: <=3.2
- osv-coords3 versions
< 2.9-3.el8+ 2 more
- (no CPE)range: < 2.9-3.el8
- (no CPE)range: < 2.9-3.el8
- (no CPE)range: < 2.9-3.el8
Patches
Vulnerability mechanics
References
4- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U7ZYR3PIJ75N6U2IONJWCKZ5L2NKJTGR/mitrevendor-advisoryx_refsource_FEDORA
- bugs.chromium.org/p/oss-fuzz/issues/detailmitrex_refsource_MISC
- github.com/SELinuxProject/selinux/commit/c49a8ea09501ad66e799ea41b8154b6770fec2c8mitrex_refsource_MISC
- github.com/google/oss-fuzz-vulns/blob/main/vulns/selinux/OSV-2021-536.yamlmitrex_refsource_MISC
News mentions
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