CVE-2026-80896

A flaw was found in the mshv component of the Linux kernel. A race condition exists in the mshvirqfddeassign function due to a missing lock, which can lead to concurrent operations on interrupt file descriptors irqfds. Additionally, the use of hlistdel instead of hlistdelinit can result in poison...

CVE-2026-80896: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: mshv: Fix race in mshvirqfddeassign mshvirqfddeactivate and the hlist traversal of ptirqfdslist require pt-ptirqfdslock to be held, but mshvirqfddeassign omits it. This races with the EPOLLHUP path in mshvirqfdwakeup, which does...