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[FFmpeg-devel,4/4] avutil/frame: Disallow zero sized frame side data

Message ID 20170223141932.31110-4-michael@niedermayer.cc
State Accepted
Commit 7e4f32f4e4b93c95dcc872cb844c5548e69f352e
Headers show

Commit Message

Michael Niedermayer Feb. 23, 2017, 2:19 p.m. UTC 
There should be no case that needs this and its a potential for
creating corner cases

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
 libavutil/frame.c | 2 ++
 1 file changed, 2 insertions(+)
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Patch

diff --git a/libavutil/frame.c b/libavutil/frame.c
index 8811dcdcfe..69ee240758 100644
--- a/libavutil/frame.c
+++ b/libavutil/frame.c
@@ -668,6 +668,8 @@  AVFrameSideData *av_frame_new_side_data(AVFrame *frame,
                                         enum AVFrameSideDataType type,
                                         int size)
 {
+    if (size <= 0)
+        return NULL;
 
     return frame_new_side_data(frame, type, av_buffer_alloc(size));
 }