avfilter/vf_avgblur: fix heap-buffer overflow

Fixes #8274
This commit is contained in:
Paul B Mahol 2019-10-15 16:31:15 +02:00
parent 62f4722582
commit f069a9c2a6

View File

@ -148,7 +148,7 @@ static int filter_vertically_##name(AVFilterContext *ctx, void *arg, int jobnr,
\
src = s->buffer + x; \
ptr = buffer + x; \
for (i = 0; i <= radius; i++) { \
for (i = 0; i + radius < height && i <= radius; i++) { \
acc += src[(i + radius) * width]; \
count++; \
ptr[i * linesize] = acc / count; \