Fixes: out of array access Fixes: 26047/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_SMACKER_fuzzer-5083031667474432
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> --- libavcodec/smacker.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/libavcodec/smacker.c b/libavcodec/smacker.c index 813eb862c0..6b1faec09e 100644 --- a/libavcodec/smacker.c +++ b/libavcodec/smacker.c @@ -448,6 +448,8 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, case SMK_BLK_FULL: mode = 0; if(avctx->codec_tag == MKTAG('S', 'M', 'K', '4')) { // In case of Smacker v4 we have three modes + if (get_bits_left(&gb) < 1) + return AVERROR_INVALIDDATA; if(get_bits1(&gb)) mode = 1; else if(get_bits1(&gb)) mode = 2; } -- 2.17.1 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
