Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: x86/kexec: added a sanity check on the previous kernel’s ima kexec buffer. When the second-stage kernel is booted via kexec with a limiting command line such as “mem=”, the physical range that contains the carried-over IMA...

CVE-2026-43240

CVE-2026-43240 concerns the Linux kernel (x86/kexec) where a second-stage kernel booted with a memory-limiting parameter (mem=…) may place the IMA kexec buffer outside the accessible RAM, causing a kernel panic. The vulnerability arises from a missing range validation for the carried IMA measurem...