Linux Distros Unpatched Vulnerability : CVE-2026-31640

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - rxrpc: Fix use of wrong skb when comparing queued RESP challenge serial In rxrpcpostresponse, the code should be comparing the challenge serial number from the...

CVE-2026-31640 rxrpc: Fix use of wrong skb when comparing queued RESP challenge serial

In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix use of wrong skb when comparing queued RESP challenge serial In rxrpcpostresponse, the code should be comparing the challenge serial number from the cached response before deciding to switch to a newer response, but...

CVE-2026-31640

CVE-2026-31640 affects the Linux kernel rxrpc component. The issue occurs in rxrpc_post_response() where the code compares the challenge serial number using the newer packet private data instead of the cached/older response, causing the comparison to always be false and potentially preventing the...