ffmpeg | branch: release/7.1 | Michael Niedermayer <mich...@niedermayer.cc> | 
Sun Nov  3 20:47:07 2024 +0100| [445065e23a7aa9aa9fb1be705a253993479c089a] | 
committer: Michael Niedermayer

avformat/ilbc: Check avio_read() for failure

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 <mich...@niedermayer.cc>
(cherry picked from commit e30d957a9bacf7f7307c640aa0bd1e70cb3bbe7e)
Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=445065e23a7aa9aa9fb1be705a253993479c089a
---

 libavformat/ilbc.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/libavformat/ilbc.c b/libavformat/ilbc.c
index a24aa3da9d..6c441c21bf 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)

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