CVE-2015-2830: Canonical Ubuntu Linux

Low severity, CVSS 1.9. EPSS: 0.4% chance of exploitation in the next 30 days.

arch/x86/kernel/entry_64.S in the Linux kernel before 3.19.2 does not prevent the TS_COMPAT flag from reaching a user-mode task, which might allow local users to bypass the seccomp or audit protection mechanism via a crafted application that uses the (1) fork or (2) close system call, as demonstrated by an attack against seccomp before 3.16.

Affected products

• Canonical Ubuntu Linux: version 12.04 only
• Debian Debian Linux: version 7.0 only; version 8.0 only
• Linux Linux Kernel: up to and including 3.19.1

Published 2015-05-27. Last modified 2026-06-17.