CVE-2026-80675

In the Linux kernel, the following vulnerability has been resolved: libbpf: Reject non-exclusive metadata maps in the signed loader The loader verifies map-sha against the metadata hash in its instructions. map-sha is calculated when BPFOBJGETINFOBYFD is called on the frozen map. While the map is...

EUVD-2026-67551

In the Linux kernel, the following vulnerability has been resolved: libbpf: Reject non-exclusive metadata maps in the signed loader The loader verifies map-sha against the metadata hash in its instructions. map-sha is calculated when BPFOBJGETINFOBYFD is called on the frozen map. While the map is...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: bpf: Exclusive maps are rejected as inner maps in map-in-map structures. An exclusive map created using exclproghash is bound to a single program by the checkmapprogcompatibility function. This function refuses to load any progra...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: bpf: Exclusive maps for bpfmapelem iterators are rejected Exclusive maps also known as exclproghash are meant to be accessible only from the single program whose hash matches that map. This rule is enforced by...

CVE-2026-74364

A flaw was found in the Linux kernel's Berkeley Packet Filter BPF subsystem. Exclusive maps, which are designed to be used by a single program, can be incorrectly inserted as inner maps within a map-in-map structure. This bypasses the intended security checks, allowing an unrelated program to...

UBUNTU-CVE-2026-74360

In the Linux kernel, the following vulnerability has been resolved: bpf: Reject exclusive maps for bpfmapelem iterators Exclusive maps aka exclproghash are meant to be reachable only from the single program whose hash matches. This is enforced by checkmapprogcompatibility when the map is referenc...

CVE-2025-68355 bpf: Fix exclusive map memory leak

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix exclusive map memory leak When exclproghash is 0 and exclproghashsize is non-zero, the map also needs to be freed. Otherwise, the map memory will not be reclaimed, just like the memory leak problem reported by syzbot 1...

PT-2025-52891

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A memory leak exists in the Linux kernel’s BPF Berkeley Packet Filter implementation related to exclusive maps. Specifically, when excl prog hash is zero and excl prog hash size is...