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BugTraq
[aadams (at) securityfocus (dot) com [email concealed]: Linux Kernel <= 2.4.21 MXCSR Local DOS Exploitation] Nov 21 2003 12:10AM David Ahmad (da securityfocus com) (2 replies) Re: [aadams (at) securityfocus (dot) com [email concealed]: Linux Kernel <= 2.4.21 MXCSR Local DOS Exploitation] Nov 24 2003 02:55AM Matt Zimmerman (mdz debian org) |
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Privacy Statement |
Hash: SHA1
On Friday 21 November 2003 01:10, David Ahmad wrote:
> Starting with the P3, Intel processors included SSE support which amongst
> many other things added the MXCSR register to handle SSE status and
> control information (and various behavioral flags). MXCSR is a 32-bit
> register, the MSB 16-bits of which are reserved. Intel specifies that if
> these reserved bits are written to a general protection fault (#GP) will
> occur.
An interesting question is: does this problem apply to AMD Processors as well
if /proc/cpuinfo has sse included in the cpuflags?
Anyone able to clear this issue up?
- --
- Thilo Schulz
My public GnuPG key is available at http://home.bawue.de/~arny/public_key.asc
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