From patchwork Sun Mar 29 01:08:13 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lance Wang X-Patchwork-Id: 18478 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 CF84F44B9E3 for ; Sun, 29 Mar 2020 04:08:26 +0300 (EEST) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id B1ADC68B0FE; Sun, 29 Mar 2020 04:08:26 +0300 (EEST) 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 D608068AF6D for ; Sun, 29 Mar 2020 04:08:19 +0300 (EEST) Received: by mail-pg1-f194.google.com with SMTP id d37so6281112pgl.1 for ; Sat, 28 Mar 2020 18:08:19 -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=kTVLx2jEnLQUJb2qyS3k9h7rHJBPJjoU9pi3G82/khE=; b=vElxa8Nn9dub7Xn4p6h0qs1/nQ0NPZTNXPgm2A+8VqtRXTErfSrQB4sQx4ITK/b8cD jup/G6m5SUhy4mqXDxe0gPGvwFVm21LH981GkaQri5IRcvBG6mC0NHX+r4pbibktQsIc tZiOuHMvnYB7DXZe9G8FlSTVAS1g9hmh+n+vgNCPMOoIBjT11HPWoiRmLpqxxi2v/dRi uWnArfvbJ44DImPbi6wL8i5P02tSfWZGu3Vd2yFW1ZiP0Oxkj9wd0q+ewlGg5jJ63OcY BeXjK4NuRH5Iia9fDbd0K09sqN94RwGq7A/A7lo6U94W4MSCUx+77XbuLkNuECU467ba jAKA== 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=kTVLx2jEnLQUJb2qyS3k9h7rHJBPJjoU9pi3G82/khE=; b=R4HufSYaCLp7uT8vtCg1IrfXqtNhu4IuehE6KLAvCRuRHjTJAZWgk2PmATfMfkFumQ Yv8Venf7YvXnpKmbmTmuG/Ssl1h+lL713bNHiGbBVowqhf5wS/D/Sp2RHZGvSLZeSdYp I8/VXj0FoTASTxeLtqysNVy4AusfcoWakamrm/yFXjwpObHkoPVXZmDOjUjHvePhMguC 1NIdjSXszMhuxB/F6N7b4rPlQ6Tcr6zqkUFQCVq98AiTY3vC3SxU6Rp7rsHCyiwcCtMt N2hBkoOhWl4bEO7Uo2IyO3r5OdIrstD5K88PzCPTaY06nW9ZcS4h598Twz1F4uCTQmSh hRhg== X-Gm-Message-State: ANhLgQ3wFzHYxHyTszMs9Z3k3SM4YKzJOwjEIzdytqjdp9HMNlrzMHBJ 50dC5V+ov5Uxi67B3VZ2pDUAQygJ X-Google-Smtp-Source: ADFU+vvjJJq7R9JxGfPQV+fvT7hO9zvp7uzt7tKZ7fqYJNq310vhMy0DewkczoRRUMOyNRp3kpZnWw== X-Received: by 2002:a63:5c02:: with SMTP id q2mr6951582pgb.262.1585444097816; Sat, 28 Mar 2020 18:08:17 -0700 (PDT) Received: from vpn.localdomain ([47.90.99.151]) by smtp.gmail.com with ESMTPSA id l6sm6850306pff.173.2020.03.28.18.08.16 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sat, 28 Mar 2020 18:08:17 -0700 (PDT) From: lance.lmwang@gmail.com To: ffmpeg-devel@ffmpeg.org Date: Sun, 29 Mar 2020 09:08:13 +0800 Message-Id: <20200329010813.23547-1-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 v3 2/3] avfilter/vf_mix: 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/vf_mix.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/libavfilter/vf_mix.c b/libavfilter/vf_mix.c index 9e1ae79..9bb1b7a 100644 --- a/libavfilter/vf_mix.c +++ b/libavfilter/vf_mix.c @@ -108,7 +108,10 @@ static av_cold int init(AVFilterContext *ctx) break; p = NULL; - av_sscanf(arg, "%f", &s->weights[i]); + if (av_sscanf(arg, "%f", &s->weights[i]) != 1) { + av_log(ctx, AV_LOG_ERROR, "Invalid syntax for weights[%d].\n", i); + return AVERROR(EINVAL); + } s->wfactor += s->weights[i]; last = i; }