aboutsummaryrefslogtreecommitdiffstats
path: root/libavcodec
diff options
context:
space:
mode:
authorMichael Niedermayer <michael@niedermayer.cc>2020-09-25 20:08:37 +0200
committerMichael Niedermayer <michael@niedermayer.cc>2021-09-09 13:37:20 +0200
commit8b84fcb78f9ab25dbe1949433b58a33861118629 (patch)
tree6b796c35cd690bee601532c605b130bc729dbbc5 /libavcodec
parent91f7983a8959b6c5d14eed21bb575ecd88065bd9 (diff)
downloadffmpeg-8b84fcb78f9ab25dbe1949433b58a33861118629.tar.gz
avcodec/dxtory: Fix negative shift in dx2_decode_slice_410()
Fixes: left shift of negative value -768 Fixes: 25574/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DXTORY_fuzzer-6012596027916288 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Reviewed-by: Paul B Mahol <onemda@gmail.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> (cherry picked from commit abebd87764992dc22c82802bdc75d40aac14ab86) Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavcodec')
-rw-r--r--libavcodec/dxtory.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/dxtory.c b/libavcodec/dxtory.c
index 285ca38efb..b2daaa7cc2 100644
--- a/libavcodec/dxtory.c
+++ b/libavcodec/dxtory.c
@@ -442,7 +442,7 @@ static int dx2_decode_slice_410(GetBitContext *gb, AVFrame *frame,
V[x >> 2] = decode_sym(gb, lru[2]) ^ 0x80;
}
- Y += ystride << 2;
+ Y += ystride * 4;
U += ustride;
V += vstride;
}