CVE-2026-63825 | Linux Kernel up to 6.18.37/7.1.2 GCOV Instrumentation Makefile inflate_fast memory corruption (WID-SEC-2026-2403)

A vulnerability has been found in Linux Kernel up to 6.18.37/7.1.2 and classified as very critical. Affected by this vulnerability is the function inflate_fast of the file Makefile of the component GCOV Instrumentation. Performing a manipulation results in memory corruption. This vulnerability was named CVE-2026-63825. The attack may be initiated remotely. There is no available exploit. The affected component should be upgraded.