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ATTENTION you can get root on x64 - Zero extend all registers after ptrace in 32bit entry path. [message #20985]

Sat, 29 September 2007 09:49

disaster
Messages: 158
Registered: February 2006

Senior Member

Hello!

Isn't this one http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.2 0.y.git;a=commitdiff;h=0d4a39318e6177ed424e92fe9ea75b514e782cdc also related to openvz Kernel? I mean you can get root rights with it in a VPS or as a user on the Host if it is a x64 build.

[Updated on: Sat, 29 September 2007 14:19]

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Re: Zero extend all registers after ptrace in 32bit entry path. [message #20989 is a reply to message #20985]

Sat, 29 September 2007 14:17

disaster
Messages: 158
Registered: February 2006

Senior Member

It is relevant - everyone can get root access. Apply the patch from 2.6.20 in the link to your 2.6.18 kernel - it fixes the problem (only some hunks).

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