The vulnerability of the rxgk_verify_authenticator() function in the net/rxrpc/rxgk.c module allows attackers to access protected information or cause service failures under Linux operating system kernels.

The vulnerability of the rxgkverifyauthenticator function in the net/rxrpc/rxgk.c module relates to the execution of operations outside the buffer in the memory of the Linux operating system’s kernel. Exploiting this vulnerability could allow a remote attacker to gain access to protected...

CVE-2026-31636: Out-of-bounds Read

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...