CVE-2025-38089

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

Description: A remotely-triggerable crash can occur in the Linux kernel if a client sends a specially crafted packet to the kernel RPC server. This happens when decoding the RPC reply fails and returns SVC GARBAGE without setting the rq accept statp pointer, which can then be dereferenced and cause a crash or memory scribble. The issue arises from the server sunrpc code treating a SVC GARBAGE return as a GARBAGE ARGS reply instead of rejecting the RPC with a status of AUTH ERR as per RFC 5531. The problem is resolved by handling a SVC GARBAGE return as an AUTH ERROR with a reason of AUTH BADCRED.

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