|From:||Tomasz Chmielewski <mangoo-AT-wpkg.org>|
|To:||LKML <linux-kernel-AT-vger.kernel.org>, jbarnold-AT-MIT.EDU, francois.cami-AT-free.fr, Andi Kleen <andi-AT-firstfloor.org>, mail-AT-earthworm.de|
|Subject:||Re: A system for rebootless kernel security updates|
|Date:||Thu, 24 Apr 2008 16:26:44 +0200|
Jeff Arnold wrote: > I've put together an automatic system for applying kernel security patches > to the Linux kernel without rebooting it, and I wanted to share this > system with the community in case others find it useful or interesting. Hmm, the idea seem to be patented by Microsoft, i.e. this patent from December 2002: http://www.google.com/patents?id=cVyWAAAAEBAJ&dq=hotp... (and other patents by Microsoft if you search for "hotpatching"). And those patent descriptions, by the way, remind the way kexec works ("A software module is hotpatched by loading a patch into memory and modifying an instruction in the original module to jump to the patch"), which was released much earlier... In essence, they patented kexec ;) -- Tomasz Chmielewski http://wpkg.org
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