CVE-2004-0565: Gentoo Linux

Low severity, CVSS 2.1. EPSS: 0.4% chance of exploitation in the next 30 days.

Floating point information leak in the context switch code for Linux 2.4.x only checks the MFH bit but does not verify the FPH owner, which allows local users to read register values of other processes by setting the MFH bit.

Affected products

• Gentoo Linux: any version
• Linux Linux Kernel: version 2.4.0 only
• Mandrakesoft Mandrake Linux: version 9.1 only; version 9.2 only; version 10.0 only
• Mandrakesoft Mandrake Linux Corporate Server: version 2.1 only
• Mandrakesoft Mandrake Multi Network Firewall: version 8.2 only
• Trustix Secure Linux: version 2 only; version 2.0 only; version 2.1 only

Published 2004-12-06. Last modified 2026-06-16.