@@ -963,6 +963,15 @@ static int cfhd_decode(AVCodecContext *avctx, void *data, int *got_frame,
}
low = s->plane[plane].l_h[6];
high = s->plane[plane].l_h[7];
+
+ if (avctx->pix_fmt == AV_PIX_FMT_BAYER_RGGB16 &&
+ (lowpass_height * 2 > avctx->coded_height / 2 ||
+ lowpass_width * 2 > avctx->coded_width / 2 )
+ ) {
+ ret = AVERROR_INVALIDDATA;
+ goto end;
+ }
+
for (i = 0; i < lowpass_height * 2; i++) {
if (avctx->pix_fmt == AV_PIX_FMT_BAYER_RGGB16)
horiz_filter_clip_bayer(dst, low, high, lowpass_width, s->bpc);
Fixes: out of array write Fixes: 16105/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_CFHD_fuzzer-5690817309573120 Fixes: 16119/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_CFHD_fuzzer-5099050675732480 Fixes: 16135/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_CFHD_fuzzer-5705501601431552 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> --- libavcodec/cfhd.c | 9 +++++++++ 1 file changed, 9 insertions(+)