From dbcf285abdc7921b065491862be048bdd0c9289d Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Thu, 21 Sep 2023 00:29:24 +0200 Subject: [PATCH] avcodec/wavarc: Allocate AV_INPUT_BUFFER_PADDING_SIZE Fixes: overread Fixes: 62164/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WAVARC_fuzzer-5963163952349184 Fixes: 62164/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WAVARC_fuzzer-6048030137909248 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer --- libavcodec/wavarc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/wavarc.c b/libavcodec/wavarc.c index 6941ba9ab5..d12b826852 100644 --- a/libavcodec/wavarc.c +++ b/libavcodec/wavarc.c @@ -111,7 +111,7 @@ static av_cold int wavarc_init(AVCodecContext *avctx) } s->max_framesize = s->nb_samples * 16; - s->bitstream = av_calloc(s->max_framesize, sizeof(*s->bitstream)); + s->bitstream = av_calloc(s->max_framesize + AV_INPUT_BUFFER_PADDING_SIZE, sizeof(*s->bitstream)); if (!s->bitstream) return AVERROR(ENOMEM);