From: Leonidas S. Barbosa Date: Tue, 28 Oct 2014 17:50:45 +0000 (-0200) Subject: crypto: nx - Fixing the limit number of bytes to be processed X-Git-Tag: omap-for-v3.19/fixes-rc1~99^2~58 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f129430dd87dfe868845292e661b186fbfa89ce3;p=pandora-kernel.git crypto: nx - Fixing the limit number of bytes to be processed The previous limits were estimated locally in a single step basead on bound values, however it was not correct since when given certain scatterlist the function nx_build_sg_lists was consuming more sg entries than allocated causing a memory corruption and crashes. e.g.: in the worst case we could have one sg entry for a single byte. This patch fixes it modifying the logic of the bound limit moving it to nx_sg_build_lists and set a correct sg_max limit, adding a trim function to ensure the bound in sg_list. Also fixing nx_build_sg_list NULL and untreated return in case of overflow. Signed-off-by: Leonidas S. Barbosa Signed-off-by: Herbert Xu --- Reading git-diff-tree failed