Search: CVE-2026-43147

A deadlock vulnerability in the Linux kernel's PCI subsystem related to SR-IOV (Single Root I/O Virtualization) was resolved by reverting a commit that introduced recursive locking causing deadlocks. The revert restores the previous deadlock issue but removes the immediate deadlock caused by the problematic commit. A new fix is planned to address the underlying problem properly. This vulnerability affects specific Linux kernel versions and has a medium severity rating with no confidentiality or integrity impact but can cause availability issues due to deadlocks.