CVE-2026-64353: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: bpf: Keep dynamic inner array lookups nullable An ARRAY_OF_MAPS can use an array created with BPF_F_INNER_MAP as its inner map template. A concrete inner array with a different max_entries value can then replace the template. After a successful outer map lookup, the verifier represents the resulting map pointer using the inner map template. Const-key lookup nullness elision consequently uses the template max_entries even though the runtime helper uses the concrete inner map max_entries. Do not elide lookup result nullness for maps marked with BPF_F_INNER_MAP, because the template max_entries does not prove that the key is in bounds for the concrete runtime map.

Засегнати продукти

• Linux Linux: d2102f2f5d75a84dbab6ff890359f0bd4a18ca22 преди 0b92ad64d6e4bde85e6b9888404f9a7a2b65d269; d2102f2f5d75a84dbab6ff890359f0bd4a18ca22 преди d57db0d975053e01410c54e708a85b6d32ef2ebd; d2102f2f5d75a84dbab6ff890359f0bd4a18ca22 преди 53040a81ae57cdca8af8ac36fe4e661730cf7c6b
• Linux Linux: 6.14; преди 6.14; 6.18.40 до 6.18.*; 7.1.4 до 7.1.*; от 7.2 нататък

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99268
• CVE-2026-99266
• CVE-2026-99267

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-64353
• https://nvd.nist.gov/vuln/detail/CVE-2026-64353
• https://git.kernel.org/stable/c/0b92ad64d6e4bde85e6b9888404f9a7a2b65d269
• https://git.kernel.org/stable/c/d57db0d975053e01410c54e708a85b6d32ef2ebd
• https://git.kernel.org/stable/c/53040a81ae57cdca8af8ac36fe4e661730cf7c6b