CVE-2026-89556
CVE CVE-2026-89556EUVD EUVD-2026-76467Published 2026-09-11T19:44:29.000ZLast changed 2026-09-13T06:24:03.000Z
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: module: validate string table section types In elf_validity_cache_sechdrs, section sizes and offsets are validated, unless the section type is SHT_NULL or SHT_NOBITS. Later, elf_validity_cache_secstrings and elf_validity_cache_index_str access the section name table (.shstrtab) and symbol string table (.strtab) headers without first ensuring that their types are SHT_STRTAB. If a section type is SHT_NULL or SHT_NOBITS, sh_offset has not been validated and may reference out-of-bounds memory when dereferenced in elf_validity_cache_secstrings or elf_validity_cache_strtab. Validate that both string section headers are of type SHT_STRTAB before caching them.
Source: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- Linux — Linux patch: 7.3-rc1; c92aab819d56d51631f0484ed7af11d9d8ff4cb0 <e4496dda2c6d0acf7ba5fbce14a2723a8935ceee; c92aab819d56d51631f0484ed7af11d9d8ff4cb0 <50d0aa7d25ba4bc3606f150cd69755068e79f97f; patch: 0; patch: 6.18.50; 6.13; c92aab819d56d51631f0484ed7af11d9d8ff4cb0 <9a5ff45689329835f874cefe5174e577d141d423; patch: 7.2.4
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Linux — Linux
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