On Thu, Dec 22, 2016 at 9:25 AM, Andy Lutomirski <l...@amacapital.net> wrote: > On Thu, Dec 22, 2016 at 8:59 AM, Hannes Frederic Sowa > <han...@stressinduktion.org> wrote: >> On Thu, 2016-12-22 at 08:07 -0800, Andy Lutomirski wrote: >> >> We don't prevent ebpf programs being loaded based on the digest but >> just to uniquely identify loaded programs from user space and match up >> with their source. > > The commit log talks about using the hash to see if the program has > already been compiled and JITted. If that's done, then a collision > will directly cause the kernel to malfunction.
Andy, please read the code. we could have used jhash there just as well. Collisions are fine.
