Instead of accessing unintialized data when input is shorter than
expected size.
Fixes use of uninitialized value in MSAN build.
Found by OSS-Fuzz.
Signed-off-by: Kacper Michajłow <kaspe...@gmail.com>
---
libavformat/scd.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/libavformat/scd.c b/libavformat/scd.c
index ee118c1668..e57733a8d8 100644
--- a/libavformat/scd.c
+++ b/libavformat/scd.c
@@ -30,6 +30,7 @@
#include "libavutil/mem.h"
#include "libavformat/internal.h"
#include "avformat.h"
+#include "avio_internal.h"
#include "demux.h"
#define SCD_MAGIC ((uint64_t)MKBETAG('S', 'E', 'D', 'B') << 32 | \
@@ -243,7 +244,7 @@ static int scd_read_header(AVFormatContext *s)
SCDDemuxContext *ctx = s->priv_data;
uint8_t buf[SCD_MIN_HEADER_SIZE];
- if ((ret = avio_read(s->pb, buf, SCD_MIN_HEADER_SIZE)) < 0)
+ if ((ret = ffio_read_size(s->pb, buf, SCD_MIN_HEADER_SIZE)) < 0)
return ret;
ctx->hdr.magic = AV_RB64(buf + 0);
--
2.45.1
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