CVE-2024-40944: Linux Kernel

Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: x86/kexec: Fix bug with call depth tracking The call to cc_platform_has() triggers a fault and system crash if call depth tracking is active because the GS segment has been reset by load_segments() and GS_BASE is now 0 but call depth tracking uses per-CPU variables to operate. Call cc_platform_has() earlier in the function when GS is still valid. [ bp: Massage. ]

Affected products

• Linux Linux Kernel: from 6.2, before 6.6.35 (fixed in 6.6.35); from 6.7, before 6.9.6 (fixed in 6.9.6); version 6.10 only

Published 2024-07-12. Last modified 2026-06-17.