CVE-2026-89556

CVE-2026-89556 affects the Linux kernel module loader's ELF validity caching. In elf_validity_cache_sechdrs, section sizes and offsets are validated only when the section type is neither SHT_NULL nor SHT_NOBITS. However, elf_validity_cache_secstrings and elf_validity_cache_index_str subsequently ...

CVE-2026-89556: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: module: validate string table section types In elfvaliditycachesechdrs, section sizes and offsets are validated, unless the section type is SHTNULL or SHTNOBITS. Later, elfvaliditycachesecstrings and elfvaliditycacheindexstr acce...