On Sat, 21 Sep 2013 14:26:35 +0530 Yashpal Dutta <yashpal.dutta@xxxxxxxxxxxxx> wrote: > KMap the buffers before copying trailing bytes during hmac into a session > temporary buffer. This is required if pinned buffer from user-space is send > during hmac and is safe even if hmac request is generated from within kernel. it may be "safe" but it adversely affects performance for AF_ALG users, no? why does ocf-linux need this, and not AF_ALG? Is a patch to ocf-linux more appropriate here? > Cc:stable@xxxxxxxxxxxxxxx fyi, this violates the following rule in Documentation/stable_kernel_rules.txt: - It or an equivalent fix must already exist in Linus' tree (upstream). Kim -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html