From: Michael Niedermayer <michael@niedermayer.cc>
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Subject: [FFmpeg-devel] [PATCH 1/3] avcodec/escape124: fix signdness of end of input check
Date: Mon, 6 Mar 2023 00:36:52 +0100
Message-ID: <20230305233654.13895-1-michael@niedermayer.cc> (raw)
Fixes: Timeout
Fixes: 56561/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ESCAPE124_fuzzer-5560363635834880
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
libavcodec/escape124.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavcodec/escape124.c b/libavcodec/escape124.c
index 024eec59ce..e9c6b2df1b 100644
--- a/libavcodec/escape124.c
+++ b/libavcodec/escape124.c
@@ -89,7 +89,7 @@ static CodeBook unpack_codebook(GetBitContext* gb, unsigned depth,
unsigned i, j;
CodeBook cb = { 0 };
- if (size >= INT_MAX / 34 || get_bits_left(gb) < size * 34)
+ if (size >= INT_MAX / 34 || get_bits_left(gb) < (int)size * 34)
return cb;
if (size >= INT_MAX / sizeof(MacroBlock))
--
2.17.1
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next reply other threads:[~2023-03-05 23:37 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-05 23:36 Michael Niedermayer [this message]
2023-03-05 23:36 ` [FFmpeg-devel] [PATCH 2/3] avcodec/escape124: Fix some return codes Michael Niedermayer
2023-03-05 23:36 ` [FFmpeg-devel] [PATCH 3/3] avcodec/escape124: Simplify unpack_codebook() Michael Niedermayer
2023-03-12 19:31 ` [FFmpeg-devel] [PATCH 1/3] avcodec/escape124: fix signdness of end of input check Michael Niedermayer
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