[FFmpeg-devel] [PATCH 4/5] avformat/ilbc: Check avio_read() for failure

[Michael Niedermayer]

Fixes: use of uninitialized value
Fixes: 42537627/clusterfuzz-testcase-minimized-fuzzer_protocol_memory-6656646223298560-cut

Found-by: ossfuzz
Reported-by: Kacper Michajlow
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
---
 libavformat/ilbc.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/libavformat/ilbc.c b/libavformat/ilbc.c
index a24aa3da9d3..6c441c21bf1 100644
--- a/libavformat/ilbc.c
+++ b/libavformat/ilbc.c
@@ -61,7 +61,8 @@ static int ilbc_read_header(AVFormatContext *s)
     AVStream *st;
     uint8_t header[9];
 
-    avio_read(pb, header, 9);
+    if (avio_read(pb, header, 9) != 9)
+        return AVERROR_INVALIDDATA;
 
     st = avformat_new_stream(s, NULL);
     if (!st)
-- 
2.47.0