From 403bee30a57bfa77efebddcebc546df9d3876db2 Mon Sep 17 00:00:00 2001 From: Limin Wang Date: Sun, 29 Mar 2020 08:08:04 +0800 Subject: avfilter/af_acrossover: Check sscanf() return value Signed-off-by: Limin Wang --- libavfilter/af_acrossover.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'libavfilter/af_acrossover.c') diff --git a/libavfilter/af_acrossover.c b/libavfilter/af_acrossover.c index f70c50b3ed..002f378c3d 100644 --- a/libavfilter/af_acrossover.c +++ b/libavfilter/af_acrossover.c @@ -99,7 +99,10 @@ static av_cold int init(AVFilterContext *ctx) p = NULL; - av_sscanf(arg, "%f", &freq); + if (av_sscanf(arg, "%f", &freq) != 1) { + av_log(ctx, AV_LOG_ERROR, "Invalid syntax for frequency[%d].\n", i); + return AVERROR(EINVAL); + } if (freq <= 0) { av_log(ctx, AV_LOG_ERROR, "Frequency %f must be positive number.\n", freq); return AVERROR(EINVAL); -- cgit v1.2.3