kernel: rxrpc: fix RESPONSE authenticator parser OOB read

A flaw was found in the Linux kernel's rxrpc subsystem. A remote attacker could send a specially crafted rxrpc RESPONSE authenticator that, due to an incorrect parser limit calculation in the rxgkverifyauthenticator function, leads to a slab-out-of-bounds read. This memory corruption vulnerabilit...

SUSE CVE-2026-31636

In the Linux kernel, the following vulnerability has been resolved: rxrpc: fix RESPONSE authenticator parser OOB read rxgkverifyauthenticator copies authlen bytes into a temporary buffer and then passes p + authlen as the parser limit to rxgkdoverifyauthenticator. Since p is a be32 , that inflate...

CVE-2026-31636

In the Linux kernel, the following vulnerability has been resolved: rxrpc: fix RESPONSE authenticator parser OOB read rxgkverifyauthenticator copies authlen bytes into a temporary buffer and then passes p + authlen as the parser limit to rxgkdoverifyauthenticator. Since p is a be32 , that inflate...