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avfilter/vf_swaprect: assert that rectangles are within memory 

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 9d1ba698d2)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2023-12-22 22:25:25 +01:00
parent e6d1ed99ae
commit aa26e3fce7
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1 changed files with 5 additions and 0 deletions
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libavfilter/vf_swaprect.c
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@ -18,6 +18,7 @@
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "libavutil/avassert.h"
#include "libavutil/avstring.h"
#include "libavutil/eval.h"
#include "libavutil/imgutils.h"
@ -179,6 +180,10 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in)
y2[1] = y2[2] = AV_CEIL_RSHIFT(y2[0], s->desc->log2_chroma_h);
y2[0] = y2[3] = y2[0];
av_assert0(FFMAX(x1[1], x2[1]) + pw[1] <= lw[1]);
av_assert0(FFMAX(y1[1], y2[1]) + ph[1] <= lh[1]);
for (p = 0; p < s->nb_planes; p++) {
if (ph[p] == ah[p] && pw[p] == aw[p]) {
uint8_t *src = in->data[p] + y1[p] * in->linesize[p] + x1[p] * s->pixsteps[p];