Messages in this thread | | | Date | Thu, 21 Feb 2013 15:38:43 -0500 | From | Vivek Goyal <> | Subject | Re: [GIT PULL] Load keys from signed PE binaries |
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On Thu, Feb 21, 2013 at 08:32:54PM +0000, Matthew Garrett wrote: > On Thu, Feb 21, 2013 at 03:31:19PM -0500, Vivek Goyal wrote: > > On Thu, Feb 21, 2013 at 10:56:44AM -0800, Linus Torvalds wrote: > > > > [..] > > > So no. The PE file thing makes no sense what-so-ever. What you mention > > > we can already do, and we already do it *better*. > > > > IIUC, PE/COFF signature verification bits can be useful for verifying > > the signature of PE/COFF signed bzImage. This verification will be > > required before kexec decides to load the kernel. > > Only if the kexec validation's being done in kernel. We'd need agreement > on that before it's a justification.
Even if /sbin/kexec does bzImage validation I think it will require kernel's help. (This is assuming that only /sbin/kexec is signed and we can't trust user space crypto libraries).
Thanks Vivek
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