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Re:Kpatch: Dynamic Linux kernel patching by chomp on Saturday August 23, 2014 @04:34PM (#8216799)
I was at the Linuxcon talk for this yesterday, here's the slides:

http://events.linuxfoundation.org/sites/events/files/slides/...

It's important to note that it's not exactly production ready, but it can work with really simple CVEs (things that don't require changes to data structures and such).

Because of this, kpatch needs a person to manually review the patch before applying it, so some kernel knowledge is required to make sure that you're making a good patch.

I do think that it'll get better as time goes on. This is a really neat feature and brings an open source competitor to ksplice.

Re:Kpatch: Dynamic Linux kernel patching by gue5t on Saturday August 23, 2014 @06:26PM (#8217051)
Re:Kpatch: Dynamic Linux kernel patching by spb on Saturday August 23, 2014 @05:37PM (#8216938)
How is this different from ksplice?
Re:Kpatch: Dynamic Linux kernel patching by kapilvt on Saturday August 23, 2014 @05:52PM (#8216971)
in a word. support.

as opposed to oracle overlords, who will eventually stop supporting grandfather'd customers and only support unbreakable linux.

there's kgraft and kpatch (suse and redhat respectively), different capabilities.

background links (kgraft/kspice) http://lwn.net/Articles/584016/ http://lwn.net/Articles/589183/

edit.. oracle also owns patents on ksplice.

Re:Kpatch: Dynamic Linux kernel patching by Zancarius on Saturday August 23, 2014 @05:50PM (#8216968)
As pointed out by chomp [1] (above).

[1] https://github.com/dynup/kpatch?hn#license

Re:Kpatch: Dynamic Linux kernel patching by sam_bwut on Saturday August 23, 2014 @08:24PM (#8217264)
Wait, how handy will this be for adding backdoors once you have root?
Re:Kpatch: Dynamic Linux kernel patching by michaelmior on Saturday August 23, 2014 @11:41PM (#8217610)
Patch modules can be signed so assuming you only need signed patches (which seems reasonable) this shouldn't be too much of a concern.