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https://trac.mplayerhq.hu/ticket/2295
r37857
--- old/libmpdemux/demux_gif.c
+++ new/libmpdemux/demux_gif.c
@@ -304,6 +304,17 @@
return NULL;
}
+ // Validate image size, most code in this demuxer assumes w*h <= INT_MAX
+ if ((int64_t)gif->SWidth * gif->SHeight > INT_MAX) {
+ mp_msg(MSGT_DEMUX, MSGL_ERR,
+ "[demux_gif] Unsupported picture size %dx%d.\n", gif->SWidth,
+ gif->SHeight);
+ if (DGifCloseFile(gif) == GIF_ERROR)
+ print_gif_error(NULL);
+ free(priv);
+ return NULL;
+ }
+
// create a new video stream header
sh_video = new_sh_video(demuxer, 0);
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