diff options
| -rw-r--r-- | libavfilter/vf_drawtext.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/libavfilter/vf_drawtext.c b/libavfilter/vf_drawtext.c index 892104dade..d954fdf2cd 100644 --- a/libavfilter/vf_drawtext.c +++ b/libavfilter/vf_drawtext.c @@ -398,8 +398,11 @@ static av_cold int init(AVFilterContext *ctx) return err; } - if (!(s->text = av_malloc(textbuf_size+1))) + if (textbuf_size > SIZE_MAX - 1 || + !(s->text = av_malloc(textbuf_size + 1))) { + av_file_unmap(textbuf, textbuf_size); return AVERROR(ENOMEM); + } memcpy(s->text, textbuf, textbuf_size); s->text[textbuf_size] = 0; av_file_unmap(textbuf, textbuf_size); |