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| author | Paul B Mahol <onemda@gmail.com> | 2016-09-17 13:47:17 +0200 |
|---|---|---|
| committer | Paul B Mahol <onemda@gmail.com> | 2016-09-17 13:57:45 +0200 |
| commit | d790887d1c6ec00d563aedc2f243712815594654 (patch) | |
| tree | 1a3346ae733291e615ead1f356500deef9c27904 | |
| parent | 27714b462d1bff9e9b40fbdabb39f58e79032b81 (diff) | |
| download | ffmpeg-d790887d1c6ec00d563aedc2f243712815594654.tar.gz | |
avfilter/vf_unsharp: check if scalebits is too high
Otherwise filter would happily give overflows and produce useless output.
Signed-off-by: Paul B Mahol <onemda@gmail.com>
| -rw-r--r-- | libavfilter/vf_unsharp.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/libavfilter/vf_unsharp.c b/libavfilter/vf_unsharp.c index d264e24e3c..aea98509ae 100644 --- a/libavfilter/vf_unsharp.c +++ b/libavfilter/vf_unsharp.c @@ -141,6 +141,10 @@ static av_cold int init(AVFilterContext *ctx) set_filter_param(&s->luma, s->lmsize_x, s->lmsize_y, s->lamount); set_filter_param(&s->chroma, s->cmsize_x, s->cmsize_y, s->camount); + if (s->luma.scalebits >= 26 || s->chroma.scalebits >= 26) { + av_log(ctx, AV_LOG_ERROR, "luma or chroma matrix size too big\n"); + return AVERROR(EINVAL); + } s->apply_unsharp = apply_unsharp_c; if (!CONFIG_OPENCL && s->opencl) { av_log(ctx, AV_LOG_ERROR, "OpenCL support was not enabled in this build, cannot be selected\n"); |