CVE-2026-72253

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

Description An issue exists in the netfilter SIP helper where the system fails to validate skb dst() before accessing it. This occurs because tc ingress and openvswitch do not guarantee that routing information is available. When the module parameter sip external media is set to 1, the SIP helper relies on the presence of skb dst(), which can lead to a system crash if the information is missing.

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