CVE-2026-80851

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

Description A race condition exists when deleting PDP contexts. PDP contexts can be deleted via GTP CMD DELPDP or during the unregistration of the GTP network device. While the latter is serialized by RTNL, the generic-netlink delete path only utilizes RCU. Concurrent execution of these paths can lead to the same PDP context being deleted twice, resulting in a general protection fault due to the dereferencing of a poisoned hlist pprev pointer. This issue affects the functions gtp pdp add(), gtp genl del pdp(), and gtp dellink().

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