avdevice/opengl_enc: check sscanf return value

557686ac · Paul B Mahol · 86b252ea · 557686ac
Commit 557686ac authored May 22, 2023 by Paul B Mahol
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opengl_enc.c libavdevice/opengl_enc.c +2 -1

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--- a/libavdevice/opengl_enc.c
+++ b/libavdevice/opengl_enc.c
@@ -594,7 +594,8 @@ static av_cold int opengl_read_limits(AVFormatContext *h)
    }

    av_log(h, AV_LOG_DEBUG, "OpenGL version: %s\n", version);
-    sscanf(version, "%d.%d", &major, &minor);
+    if (sscanf(version, "%d.%d", &major, &minor) != 2)
+        return AVERROR(ENOSYS);

    for (i = 0; required_extensions[i].extension; i++) {
        if (major < required_extensions[i].major &&