[Security-Discuss] Re: [Security Announce] MDKSA-2005:111 - Updated 2.4 kernel packages fix multiple vulnerabilities

Wouldn't this slow the box down, disabling HT?

>  Multiple vulnerabilities in the Linux kernel have been discovered 
> and fixed in this update.  The following have been fixed in the 2.4 kernels:
> 
>  Colin Percival discovered a vulnerability in Intel's Hyper-Threading
>  technology could allow a local user to use a malicious thread to create
>  covert channels, monitor the execution of other threads, and obtain
>  sensitive information such as cryptographic keys via a timing 
> attack on memory cache misses.  This has been corrected by disabling 
> HT support in all kernels (CAN-2005-0109).

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