Messages in this thread | | | Date | Tue, 10 Dec 2013 10:54:00 -0800 | From | "H. Peter Anvin" <> | Subject | Re: [PATCH v2] kexec: add sysctl to disable kexec |
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On 12/10/2013 10:33 AM, Vivek Goyal wrote: > On Tue, Dec 10, 2013 at 08:32:38AM -0800, H. Peter Anvin wrote: >> Of course it isn't. > > I am not sure what are you trying to say. This is too brief. > > Thanks > Vivek >
Of course it is not sufficient. Once you can get arbitrary code into kernel space (CPL 0) you can do anything, and "disabling jump back" is just a speed bump.
-hpa
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