From patchwork Sat Mar 28 00:17:31 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lance Wang X-Patchwork-Id: 18448 Return-Path: X-Original-To: patchwork@ffaux-bg.ffmpeg.org Delivered-To: patchwork@ffaux-bg.ffmpeg.org Received: from ffbox0-bg.mplayerhq.hu (ffbox0-bg.ffmpeg.org [79.124.17.100]) by ffaux.localdomain (Postfix) with ESMTP id 241F144BC2D for ; Sat, 28 Mar 2020 02:25:27 +0200 (EET) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id 0C53F68B67A; Sat, 28 Mar 2020 02:25:27 +0200 (EET) X-Original-To: ffmpeg-devel@ffmpeg.org Delivered-To: ffmpeg-devel@ffmpeg.org Received: from mail-pg1-f194.google.com (mail-pg1-f194.google.com [209.85.215.194]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id 4BE9E68B510 for ; Sat, 28 Mar 2020 02:25:20 +0200 (EET) Received: by mail-pg1-f194.google.com with SMTP id t24so5409654pgj.7 for ; Fri, 27 Mar 2020 17:25:20 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=EynQGthJrbAfXnPrAjPtqItgMH30xzJ8kJNmnrfB1RA=; b=QpAk1SAzVolJGGTx7O8ayeHj9h+KPQuHh2GgMYX5MFkOJLEk9Z8NcO5CL7WSBcFO0c VZ+V4tz2BeJDK1YXfZ6kjH887hh3ysyQivQ+gJG4pG+oqBZ6lOHPSCTgeWfwxFQwucTw imf7JD9aU6Z/ZQIoAl8ouyrhcWf/OsBxzAiIijGckWA52WycZakJ4Rl7oXDxwlPWy8sJ UPy5GR92nWiCQzCf4+2x3H12jncR01eG8ojFUds91/dUaf/h8sMM4qA5g+tqQs6W3b2C D+pghPoR0Zh0uWVSHXfV2QgSqok7GKyqSjdhsgGcYj2vzKcwg83MrTw3E7d/IWf/a7Bs 4O3w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=EynQGthJrbAfXnPrAjPtqItgMH30xzJ8kJNmnrfB1RA=; b=D2G8olZYrBDKPthVcOCfFUbewyX//SpVjnTvOLEESqqviLtnPxkGyYOZfrSS6DUua1 Ffa8H0OljjqhbBDFb4ngwkN0K5oCkKVIyMJRpTpZEZH6k9PjqEf8k8OyLNMebhKZnYd2 cGqoWx74GZqcWPoXJLg6xtkqWcA4mJRTPcFXrIkyp2Iy0/YhxOu1yl6PiMJJmIrHWKAM 7Nf8JKd0OwtNbFtgeDaSQ5HMEeySfbydxjiomW70qxZsaLhMq2nlk+i8C9sysOu4l57f yhqCWNXSKaz945TmcdYbTSj/E6K/Sut/f3XK7ZwrHPEUuq4hcyxzOAh9BKtW5EYY4cF2 +EjA== X-Gm-Message-State: ANhLgQ0uvWfo9OdmIvVy3mbfVJk/NCCyFXFDNqqjSuRlNyHeT61yZwr5 e+PEM/29+6a+3TnwAUZAZAEN669I X-Google-Smtp-Source: ADFU+vsz/8EYR0sFy7YIQyh9F7+KRAE86tqgsurvspMVks1J3H7WfAKSRIV8aTZeCXRkBev0etbPrA== X-Received: by 2002:a63:67c7:: with SMTP id b190mr1915441pgc.289.1585354661366; Fri, 27 Mar 2020 17:17:41 -0700 (PDT) Received: from vpn.localdomain ([47.90.99.151]) by smtp.gmail.com with ESMTPSA id h26sm4950284pfr.134.2020.03.27.17.17.39 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 27 Mar 2020 17:17:40 -0700 (PDT) From: lance.lmwang@gmail.com To: ffmpeg-devel@ffmpeg.org Date: Sat, 28 Mar 2020 08:17:31 +0800 Message-Id: <20200328001733.695-1-lance.lmwang@gmail.com> X-Mailer: git-send-email 2.9.5 In-Reply-To: <20200325230424.2787-1-lance.lmwang@gmail.com> References: <20200325230424.2787-1-lance.lmwang@gmail.com> Subject: [FFmpeg-devel] [PATCH v2 1/3] avfilter/af_acrossover: Check sscanf() return value X-BeenThere: ffmpeg-devel@ffmpeg.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: FFmpeg development discussions and patches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: FFmpeg development discussions and patches Cc: Limin Wang MIME-Version: 1.0 Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" From: Limin Wang Signed-off-by: Limin Wang --- libavfilter/af_acrossover.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) 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);