Ubuntu - Dirty Frag (CVE-2026-43284 / CVE-2026-43500)

Canonical publishes authoritative package states on ubuntu.com/security/CVE-2026-43284 and ubuntu.com/security/CVE-2026-43500. Use those pages to confirm which releases received backports.

Remediation article

Dirty Frag: Linux vulnerability fixes available explains Canonical's guidance alongside kernel updates.

Typical patching workflow

sudo apt update
sudo apt upgrade

# Inspect installed kernels (examples)
dpkg-query -W -f='${binary:Package}	${Version}
' linux-image-* | sort

Reboot into the patched kernel after maintenance windows confirm compatibility.