Ubuntu Linux Kernel Privilege Escalation & Container Escape Fix (CVE-2026-43284)
Security AdvisoryUSN-8390-2HighUbuntu
Affected:
- Linux kernel used in Microsoft Azure Cloud systems
- Linux kernel used in Google Cloud Platform (GCP) systems
- Linux Hardware Enablement (HWE) kernel
- Linux kernel used in Oracle Cloud systems
- Ubuntu 16.04 LTS xenial
Fixed in:
- linux-image-4.15.0-1155-oracle 4.15.0-1155.166~16.04.1
- linux-image-4.15.0-1186-gcp 4.15.0-1186.203~16.04.1
- linux-image-4.15.0-1202-azure 4.15.0-1202.217~16.04.1
- linux-image-4.15.0-251-generic 4.15.0-251.263~16.04.1
- linux-image-4.15.0-251-lowlatency 4.15.0-251.263~16.04.1
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