John Blackwood

**Name of the Vulnerable Software and Affected Versions** Linux kernel versions prior to 2.6.16-rc2 **Description** The issue affects the Linux kernel and can lead to a denial of service. It is caused by multiple ptrace tasks that perform single steps, which can cause corruption of the DEBUG STACK stack during the do debug function call. This can be exploited by local users to cause a denial of service. **Recommendations** At the moment, there is no information about a newer version that contains a fix for this vulnerability.