On Tue, 2017-08-22 at 17:47 -0700, Greg KH wrote: > On Tue, Aug 22, 2017 at 05:41:03PM -0700, Megha Dey wrote: > > It was reported that the sha1 AVX2 function(sha1_transform_avx2) is > > reading ahead beyond its intended data, and causing a crash if the next > > block is beyond page boundary: > > http://marc.info/?l=linux-crypto-vger&m=149373371023377 > > > > This patch makes sure that there is no overflow for any buffer length. > > > > It passes the tests written by Jan Stancek that revealed this problem: > > https://github.com/jstancek/sha1-avx2-crash > > > > This patch fixes reads beyond the number of blocks in the same way it > > was done in commit 8861249c740fc4af9ddc5aee321eafefb960d7c6 > > ("crypto: x86/sha1 : Fix reads beyond the number of blocks passed"). > > So all you really want is that specific commit added to the stable > kernels? If so, what kernel tree(s)? Hi Greg, The commit 8861249c740fc4af9ddc5aee321eafefb960d7c6 present in the mainline kernel does not apply cleanly to the stable kernel tree. Hence, I have submitted this patch with some minor changes for the stable tree. I am not sure what you mean by which kernel trees. > > thanks, > > greg k-h