diff mbox series

[FFmpeg-devel,v2,1/3] avfilter/af_acrossover: Check sscanf() return value

Message ID 20200328001733.695-1-lance.lmwang@gmail.com
State Superseded
Headers show
Series [FFmpeg-devel,v2,1/3] avfilter/af_acrossover: Check sscanf() return value
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Checks

Context Check Description
andriy/ffmpeg-patchwork pending
andriy/ffmpeg-patchwork success Applied patch
andriy/ffmpeg-patchwork success Configure finished
andriy/ffmpeg-patchwork success Make finished
andriy/ffmpeg-patchwork success Make fate finished

Commit Message

Limin Wang March 28, 2020, 12:17 a.m. UTC
From: Limin Wang <lance.lmwang@gmail.com>

Signed-off-by: Limin Wang <lance.lmwang@gmail.com>
---
 libavfilter/af_acrossover.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/libavfilter/af_acrossover.c b/libavfilter/af_acrossover.c
index f70c50b..91f77cc 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.\n");
+            return AVERROR(EINVAL);
+        }
         if (freq <= 0) {
             av_log(ctx, AV_LOG_ERROR, "Frequency %f must be positive number.\n", freq);
             return AVERROR(EINVAL);