From: Michael Niedermayer <michael@niedermayer.cc>
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Subject: [FFmpeg-devel] [PATCH 4/4] avformat/id3v2: read_uslt() check for the amount read
Date: Wed, 20 Mar 2024 03:59:23 +0100
Message-ID: <20240320025923.3794-4-michael@niedermayer.cc> (raw)
In-Reply-To: <20240320025923.3794-1-michael@niedermayer.cc>
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@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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next prev parent reply other threads:[~2024-03-20 3:00 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-20 2:59 [FFmpeg-devel] [PATCH 1/4] avcodec/jpeg2000htdec: Check M_b / magp before using it in a shift Michael Niedermayer
2024-03-20 2:59 ` [FFmpeg-devel] [PATCH 2/4] avcodec/vmixdec: Check shift before use Michael Niedermayer
2024-03-25 19:16 ` Michael Niedermayer
2024-03-20 2:59 ` [FFmpeg-devel] [PATCH 3/4] tools/target_dec_fuzzer: Adjust RKA threshold up further Michael Niedermayer
2024-03-20 2:59 ` Michael Niedermayer [this message]
2024-03-20 11:20 ` [FFmpeg-devel] [PATCH 1/4] avcodec/jpeg2000htdec: Check M_b / magp before using it in a shift Tomas Härdin
2024-03-20 13:12 ` Michael Niedermayer
2024-03-20 20:35 ` Tomas Härdin
2024-03-21 15:07 ` Tomas Härdin
2024-03-25 19:13 ` Michael Niedermayer
2024-03-25 20:04 ` Michael Niedermayer
2024-03-27 10:13 ` Tomas Härdin
2024-03-28 2:48 ` Michael Niedermayer
2024-03-28 11:13 ` Tomas Härdin
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