The implementation does not support k=32 Fixes: shift exponent 32 is too large for 32-bit type 'unsigned int' Fixes: 57976/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WAVARC_fuzzer-5911925807775744
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> --- libavcodec/wavarc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/libavcodec/wavarc.c b/libavcodec/wavarc.c index 827803c91d..312e4beb7f 100644 --- a/libavcodec/wavarc.c +++ b/libavcodec/wavarc.c @@ -192,7 +192,7 @@ static int decode_1dif(AVCodecContext *avctx, if (block_type < 4 && block_type >= 0) { k = 1 + (avctx->sample_fmt == AV_SAMPLE_FMT_S16P); k = get_urice(gb, k) + 1; - if (k > 32) + if (k >= 32) return AVERROR_INVALIDDATA; } @@ -284,7 +284,7 @@ static int decode_2slp(AVCodecContext *avctx, if (block_type < 5 && block_type >= 0) { k = 1 + (avctx->sample_fmt == AV_SAMPLE_FMT_S16P); k = get_urice(gb, k) + 1; - if (k > 32) + if (k >= 32) return AVERROR_INVALIDDATA; } -- 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".
