CVE-2025-40254

CVE-2025-40254 targets the Linux kernel openvswitch nsh field handling. The issue stems from incorrect validation of set(nsh(...)) due to a mismatched memory layout and confusing mask vs value flags, which can cause kernel NULL pointer dereferences or crashes during validation. The advisory notes...

EUVD-2025-201203

In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: remove never-working support for setting nsh fields The validation of the setnsh... action is completely wrong. It runs through the nshkeyputfromnlattr function that is the same function that validates NSH keys...