CVE-2026-74371

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description An out-of-bounds write occurs when BPF PROG QUERY unconditionally writes the query.revision field back to userspace. This happens if the userspace provides a bpf attr structure that is smaller than the current layout (for example, 40 bytes), which was the standard size before the query.revision field was added. This issue specifically affects cgroup attach types where older binaries may still be in use.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.