avcodec/indeo3: ensure offsets are non negative
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 368642361f3a589d7b0c23ea327d988edb434e3f)
Conflicts:
libavcodec/indeo3.c
diff --git a/libavcodec/indeo3.c b/libavcodec/indeo3.c
index da7dd83..48f1866 100644
--- a/libavcodec/indeo3.c
+++ b/libavcodec/indeo3.c
@@ -978,7 +978,8 @@
ctx->y_data_size = ends[0] - starts[0];
ctx->v_data_size = ends[1] - starts[1];
ctx->u_data_size = ends[2] - starts[2];
- if (FFMAX3(y_offset, v_offset, u_offset) >= ctx->data_size - 16 ||
+ if (FFMIN3(y_offset, v_offset, u_offset) < 0 ||
+ FFMAX3(y_offset, v_offset, u_offset) >= ctx->data_size - 16 ||
FFMIN3(ctx->y_data_size, ctx->v_data_size, ctx->u_data_size) <= 0) {
av_log(avctx, AV_LOG_ERROR, "One of the y/u/v offsets is invalid\n");
return AVERROR_INVALIDDATA;