UBUNTU-CVE-2026-99053

In the Linux kernel, the following vulnerability has been resolved: tipc: hold a reference to nodes found by link name tipcnodefindbyname returns a node after dropping its RCU read lock without taking a reference. The LINKSET, LINKGET and LINKRESETSTATS handlers then lock and access the node,...

Linux kernel security vulnerabilities

A security vulnerability exists in Linux kernel version 4.19. It stems from the fact that tipcnodefindbyname fails to acquire a node reference after releasing an RCU read lock; subsequently, the LINKSET, LINKGET, and LINKRESETSTATS handlers compete with timer cleanup when accessing nodes,...