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| author | Michael Niedermayer <michael@niedermayer.cc> | 2019-08-10 23:09:49 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2019-12-02 19:41:49 +0100 |
| commit | 514164d4e202b7196f8da3a74e83deda033a6c9b (patch) | |
| tree | 4eca3f906e8ccbdd59135579137374f9503f4edc | |
| parent | 3538c3476f16935e1a24f0c4bfa65f2e458315bc (diff) | |
| download | ffmpeg-514164d4e202b7196f8da3a74e83deda033a6c9b.tar.gz | |
avcodec/dds: Use ff_set_dimensions()
Fixes: signed integer overflow: 2082471995 * 36 cannot be represented in type 'int'
Fixes: 16025/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DDS_fuzzer-5136663778426880
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 9cd1e939cf26e7a53f28cbbda22d27535981b9db)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/dds.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/libavcodec/dds.c b/libavcodec/dds.c index 02051b873c..7183847005 100644 --- a/libavcodec/dds.c +++ b/libavcodec/dds.c @@ -600,6 +600,7 @@ static int dds_decode(AVCodecContext *avctx, void *data, AVFrame *frame = data; int mipmap; int ret; + int width, height; ff_texturedsp_init(&ctx->texdsp); bytestream2_init(gbc, avpkt->data, avpkt->size); @@ -618,9 +619,9 @@ static int dds_decode(AVCodecContext *avctx, void *data, bytestream2_skip(gbc, 4); // flags - avctx->height = bytestream2_get_le32(gbc); - avctx->width = bytestream2_get_le32(gbc); - ret = av_image_check_size(avctx->width, avctx->height, 0, avctx); + height = bytestream2_get_le32(gbc); + width = bytestream2_get_le32(gbc); + ret = ff_set_dimensions(avctx, width, height); if (ret < 0) { av_log(avctx, AV_LOG_ERROR, "Invalid image size %dx%d.\n", avctx->width, avctx->height); |