[FFmpeg-cvslog] avcodec/escape124: fix signdness of end of input check
Michael Niedermayer
git at videolan.org
Thu Oct 19 14:31:03 EEST 2023
ffmpeg | branch: release/2.8 | Michael Niedermayer <michael at niedermayer.cc> | Sun Mar 5 22:25:04 2023 +0100| [f7946e292c8264cadfc93ec9772e6a51ba6434ae] | committer: Michael Niedermayer
avcodec/escape124: fix signdness of end of input check
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 at niedermayer.cc>
(cherry picked from commit 87ad0a5dd7d12c91badc215c3b5d6745fa7acb02)
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=f7946e292c8264cadfc93ec9772e6a51ba6434ae
---
libavcodec/escape124.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavcodec/escape124.c b/libavcodec/escape124.c
index fab56b59e0..4cc6bf9b36 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))
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