shithub: libvpx

Info  •  Files  •  Log  •  Branches

Merge "vp9_dx_iface: subtract ptrs to validate frame_size"

--- a/vp9/vp9_dx_iface.c

+++ b/vp9/vp9_dx_iface.c

@@ -413,7 +413,8 @@

     for (i = 0; i < frame_count; ++i) {

       const uint32_t frame_size = frame_sizes[i];

-      if (data_start < data || data_start + frame_size >= data_end) {

+      if (data_start < data ||

+          frame_size > (uint32_t)(data_end - data_start)) {

         ctx->base.err_detail = "Invalid frame size in index";

         return VPX_CODEC_CORRUPT_FRAME;

       }