CVE-2006-0744 Privilege escalation in n/a

What is CVE-2006-0744?

CVE-2006-0744 is a medium-severity vulnerability in Linux kernel, published on 18 Apr 2006. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Linux kernel before 2.6.16.5 does not properly handle uncanonical return addresses on Intel EM64T CPUs, which reports an exception in the SYSRET instead of the next instruction, which causes the kernel exception handler to run on the user stack with the wrong GS.

Weakness: CWE-20

Which versions are affected by CVE-2006-0744?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2006-0744?

Upgrade to a fixed version.

Is CVE-2006-0744 being exploited?

There is no known exploitation of CVE-2006-0744 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-58v9-vmqx-g2rc.