[FFmpeg-devel] [PATCH 4/4] avformat/id3v2: read_uslt() check for the amount read
Michael Niedermayer
michael at niedermayer.cc
Wed Mar 20 04:59:23 EET 2024
Fixes: timeout
Fixes: 66783/clusterfuzz-testcase-minimized-ffmpeg_dem_GENH_fuzzer-5356884892647424
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
---
libavformat/id3v2.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavformat/id3v2.c b/libavformat/id3v2.c
index d83716dcf4..e0a7e3f3ea 100644
--- a/libavformat/id3v2.c
+++ b/libavformat/id3v2.c
@@ -370,7 +370,7 @@ static void read_uslt(AVFormatContext *s, AVIOContext *pb, int taglen,
int encoding;
int ok = 0;
- if (taglen < 1)
+ if (taglen < 4)
goto error;
encoding = avio_r8(pb);
--
2.17.1
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