Linux bitten by second severe vulnerability in as many weeks
Summary
Ars Technica reports a second severe Linux kernel vulnerability in as many weeks, Dirty Frag, which can give root access via esp/xfrm networking components. Patches are rolling out across major distributions (Debian, AlmaLinux, Fedora); users should apply updates and reboot to mitigate risk. The article details the exploit chain across CVE-2026-43284 and CVE-2026-43500 and guidance from researchers and vendors.