CVE-2026-43240

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description An issue exists in the x86 architecture during the kexec process. When a second-stage kernel is booted using a limiting command line, such as mem=<size>, the physical range containing the carried over IMA (Integrity Measurement Architecture) measurement list may fall outside the truncated RAM. This can result in a kernel panic due to a page fault in the ima restore measurement list() function. Failure to carry the measurement list across kexec would lead to attestation failure.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.