This fixes heap-buffer-overflows in libopenmpt caused by interpreting
the negative size value as unsigned size_t.
Signed-off-by: Andreas Cadhalpun <andreas.cadhal...@googlemail.com>
---
libavformat/libopenmpt.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/libavformat/libopenmpt.c b/libavformat/libopenmpt.c
index e7091ef9fc..35fd28f5f4 100644
--- a/libavformat/libopenmpt.c
+++ b/libavformat/libopenmpt.c
@@ -82,6 +82,11 @@ static int read_header_openmpt(AVFormatContext *s)
if (!buf)
return AVERROR(ENOMEM);
size = avio_read(s->pb, buf, size);
+ if (size < 0) {
+ av_log(s, AV_LOG_ERROR, "Reading input buffer failed.\n");
+ av_freep(&buf);
+ return size;
+ }
openmpt->module = openmpt_module_create_from_memory(buf, size,
openmpt_logfunc, s, NULL);
av_freep(&buf);
--
2.11.0
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