guix/gnu/packages/patches/libvpx-CVE-2016-2818.patch

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Patch contents copied from Mozilla esr45 changeset 312077:7ebfe49f001c
changeset: 312077:7ebfe49f001c
user: Randell Jesup <rjesup@jesup.org>
Date: Fri Apr 15 23:11:01 2016 -0400
summary: Bug 1263384: validate input frames against configured resolution in vp8 r=rillian, a=ritu,lizzard
MozReview-Commit-ID: BxDCnJe0mzs
--- libvpx-1.5.0/vp8/vp8_cx_iface.c.orig 2015-11-09 17:12:38.000000000 -0500
+++ libvpx-1.5.0/vp8/vp8_cx_iface.c 2016-06-08 08:48:46.037213092 -0400
@@ -860,11 +860,20 @@
if (img != NULL) {
res = image2yuvconfig(img, &sd);
- if (vp8_receive_raw_frame(ctx->cpi, ctx->next_frame_flag | lib_flags, &sd,
- dst_time_stamp, dst_end_time_stamp)) {
- VP8_COMP *cpi = (VP8_COMP *)ctx->cpi;
- res = update_error_state(ctx, &cpi->common.error);
- }
+ if (sd.y_width != ctx->cfg.g_w || sd.y_height != ctx->cfg.g_h) {
+ /* from vp8_encoder.h for g_w/g_h:
+ "Note that the frames passed as input to the encoder must have this resolution"
+ */
+ ctx->base.err_detail = "Invalid input frame resolution";
+ res = VPX_CODEC_INVALID_PARAM;
+ } else {
+ if (vp8_receive_raw_frame(ctx->cpi, ctx->next_frame_flag | lib_flags,
+ &sd, dst_time_stamp, dst_end_time_stamp))
+ {
+ VP8_COMP *cpi = (VP8_COMP *)ctx->cpi;
+ res = update_error_state(ctx, &cpi->common.error);
+ }
+ }
/* reset for next frame */
ctx->next_frame_flag = 0;