---
libavformat/mov.c | 5 -
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/libavformat/mov.c b/libavformat/mov.c
index d7be593a86..51c0f6f9d8 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -6772,7 +6772,10 @@ static int mov_read_dfla(MOVContext *c, AVIOContext *pb,
MOVAtom atom)
avio_rb24(pb); /* Flags */
-avio_read(pb, buf, sizeof(buf));
+if (avio_read(pb, buf, sizeof(buf)) != sizeof(buf)) {
+av_log(c->fc, AV_LOG_ERROR, "failed to read FLAC metadata block
header\n");
+return (pb->error < 0 ? pb->error : AVERROR_INVALIDDATA);
+}
flac_parse_block_header(buf, , , );
if (type != FLAC_METADATA_TYPE_STREAMINFO || size != FLAC_STREAMINFO_SIZE)
{
--
2.30.2
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