CVE-2009-4271: Linux Kernel

Medium severity, CVSS 4.7. EPSS: 0.3% chance of exploitation in the next 30 days.

The Linux kernel 2.6.9 through 2.6.17 on the x86_64 and amd64 platforms allows local users to cause a denial of service (panic) via a 32-bit application that calls mprotect on its Virtual Dynamic Shared Object (VDSO) page and then triggers a segmentation fault.

Affected products

• Linux Linux Kernel: version 2.6.9 only; version 2.6.10 only; version 2.6.11 only; version 2.6.11.1 only; version 2.6.11.2 only; version 2.6.11.3 only; …

Published 2010-03-19. Last modified 2026-06-16.