CVE-2026-31635

A flaw was found in the Linux kernel's rxrpc component. An inverted length check in the rxgk_verify_response() function allows oversized RESPONSE authenticators to be accepted. This can lead to an impossible length being passed to skb_to_sgvec(), triggering a BUG_ON condition and resulting in a system crash, effectively causing a Denial of Service (DoS).

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.