CVE-2026-74360: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: bpf: Reject exclusive maps for bpf_map_elem iterators Exclusive maps (aka excl_prog_hash) are meant to be reachable only from the single program whose hash matches. This is enforced by check_map_prog_compatibility() when the map is referenced from a program such as signed BPF loaders. A bpf_map_elem iterator, however, binds its target map at attach time in bpf_iter_attach_map() instead of referencing it from the program, so the exclusivity check is never reached. On top of that, the iterator exposes the map value as a writable buffer.

Засегнати продукти

• Linux Linux: baefdbdf6812e120c9fba9cfb101d3656f478026 преди 5cf2c85b1231218a3e3e9f188afb4fe2e17903d5; baefdbdf6812e120c9fba9cfb101d3656f478026 преди c3da741d5b2119c61c4498bc936f0fc1dbc3c79b; baefdbdf6812e120c9fba9cfb101d3656f478026 преди 3c56ee343f9412d81918635c3e25e22a5dd6d87e
• Linux Linux: 6.18; преди 6.18; 6.18.40 до 6.18.*; 7.1.5 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-2026-74360
• https://nvd.nist.gov/vuln/detail/CVE-2026-74360
• https://git.kernel.org/stable/c/5cf2c85b1231218a3e3e9f188afb4fe2e17903d5
• https://git.kernel.org/stable/c/c3da741d5b2119c61c4498bc936f0fc1dbc3c79b
• https://git.kernel.org/stable/c/3c56ee343f9412d81918635c3e25e22a5dd6d87e