Multiple SUSE Kernel RT Security Updates Address Critical Vulnerabilities

SUSE has released a series of important security updates for its Linux Enterprise Kernel, addressing multiple vulnerabilities across various versions. Key vulnerabilities include CVE-2026-23449, a double-free issue in net/sched, and CVE-2026-43109, related to x86 shadow stacks. Other notable CVEs include CVE-2026-46037 and CVE-2026-46242, both of which have been confirmed with proof-of-concept code. The updates affect multiple kernel versions, including 6.12.0-160000.26.1 through 6.12.0-160000.35.1. Security professionals are urged to apply the patches immediately to mitigate risks. The vulnerabilities could allow for potential exploitation, including denial of service and unauthorized access. The updates were released on August 24, 2026, and are rated as important by SUSE.

Key Points: • SUSE released critical updates for multiple kernel versions addressing several CVEs. • CVE-2026-23449 and CVE-2026-43109 are among the most severe vulnerabilities fixed. • Immediate patching is recommended to prevent potential exploitation of these vulnerabilities.