ROOT-OS-DEBIAN-12-CVE-2026-43091 CVE-2026-43091 in linux - Patched by Root

Root has patched CVE-2026-43091 in the linux package for Root:Debian:12. Multiple fixed versions available...

Important: kernel

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: ipv6: use RCU in ip6output CVE-2025-40158 In the Linux kernel, the following vulnerability has been resolved: xfrm: Wait for RCU readers during policy netns exit CVE-2026-43091 In the Linux kernel, the following...

CVE-2026-43091

A flaw was found in the Linux kernel XFRM IPsec policy teardown path. xfrmpolicyfini freed policybydst hash tables without waiting for concurrent RCU readers to finish even though those tables are published with rcuassignpointer and read via RCU. That could allow use-after-free access during...