ffmpeg | branch: master | Michael Niedermayer <mich...@niedermayer.cc> | Sat Nov 30 01:48:22 2024 +0100| [ef71552cf970876085d99834abdb8e429aea9730] | committer: Michael Niedermayer
avcodec/huffyuvdec: Initialize whole output for decode_gray_bitstream() Fixes: use of uninitialized memory Fixes: 375286238/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HYMT_fuzzer-6352546854141952 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=ef71552cf970876085d99834abdb8e429aea9730 --- libavcodec/huffyuvdec.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/libavcodec/huffyuvdec.c b/libavcodec/huffyuvdec.c index a8ccb724f5..c98904d497 100644 --- a/libavcodec/huffyuvdec.c +++ b/libavcodec/huffyuvdec.c @@ -783,6 +783,8 @@ static void decode_gray_bitstream(HYuvDecContext *s, int count) for (i = 0; i < count && BITS_LEFT(re, &s->gb) > 0; i++) { READ_2PIX(s->temp[0][2 * i], s->temp[0][2 * i + 1], 0); } + for (; i < count; i++) + s->temp[0][2 * i] = s->temp[0][2 * i + 1] = 0; } else { for (i = 0; i < count; i++) { READ_2PIX(s->temp[0][2 * i], s->temp[0][2 * i + 1], 0); _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".
