From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ffbox0-bg.mplayerhq.hu (ffbox0-bg.ffmpeg.org [79.124.17.100]) by master.gitmailbox.com (Postfix) with ESMTP id 12CBA47F85 for ; Mon, 5 Aug 2024 00:02:31 +0000 (UTC) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id 0C4D368D8D7; Mon, 5 Aug 2024 03:02:29 +0300 (EEST) Received: from mail-ed1-f54.google.com (mail-ed1-f54.google.com [209.85.208.54]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id CFBD568D6C1 for ; Mon, 5 Aug 2024 03:02:21 +0300 (EEST) Received: by mail-ed1-f54.google.com with SMTP id 4fb4d7f45d1cf-5a10bb7bcd0so14430257a12.3 for ; Sun, 04 Aug 2024 17:02:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1722816141; x=1723420941; darn=ffmpeg.org; h=to:subject:message-id:date:from:in-reply-to:references:mime-version :from:to:cc:subject:date:message-id:reply-to; bh=lanX/3z7E9hYL/u+CLQo8WiFdENVpuBM4Wbeq3krO3M=; b=nFxf/XM9ygrSKIbKxjTqF0ar6YLAqFl2vel7ER6Rkh2gl77ikCd0rSyTTK0u41svV6 53//o48N3F/B4h9LNfdfP0iXwkWk6PgJZA5iO2vpHN0Ux6NiBZlVGttkoF6sfrXhhpFR qcg3GbRLHMGRT8msFUUhl6Z2//jDznaw4xhAGFN9uoI28LVVtEbqO3BAYJ187CVGjIX3 /B9WClKOrOtIi9Y3hsAEjsJiaDiyx+1/wQcOt0D+VW4SH8Ql3P5T5BqBbzVsjXwjHkuk biGKMesjXkXx9Aj+3pl7+WO9viVSsncvlCUQx08h3ZvVzuK/948nYkMr1crt263X6lWW G6Vg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1722816141; x=1723420941; h=to:subject:message-id:date:from:in-reply-to:references:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=lanX/3z7E9hYL/u+CLQo8WiFdENVpuBM4Wbeq3krO3M=; b=C88qjA8A/dOKj6Jp5rKxHxaZba3OObDZuJCqEYQqyRXEPRzRujIZr07i4aDm44Vq95 bgAyuyxb1riDzgeWMqMM/IW5fhUgeF3u8FelRL0ZGFkKs5kPCvdisTe93xO9IECOeOAm aR4/ceXEcpnAtjRZtB6Vlp5Y9uHN6MLmGOg5N15TLkrrRb8kyOGT28Mm7Z1X32NycTWq txPJ2BCnaP8oz/1rsp0kKER8N7DThFVPeqm1ojr98y52ZUyzfQqtNkuhTAHojRkQ3B8o +nPzTGx2h68NkBOdxY7GOV+EduJcPEBb7vcR1N19pwTUghFvaVIsvBrbmYoqd6uzBPIb 35dQ== X-Gm-Message-State: AOJu0YzG7hCVcKUCy/2O6NGN/nQ4LSEm2VHOepyJQ28SeYCbqAcLojn4 YNt8K+lnTOyIaK1oijzcbCLVo5hWKvYQwI981WWSYLnybaEV22dvUYGj3sCnem0JM2RbZag+b2Q vge2Wi5zsB6OtriZqFw4DFYlLbBnCI8zLibA= X-Google-Smtp-Source: AGHT+IHiiHVtn1Yrr7nllfc02mhT28O4JeI7OAvgDngMd/9D5IWSxh5TYRAYyp2zV8xIqmYZ6V7iKXiWrlgjbbHxI20= X-Received: by 2002:a17:907:944e:b0:a77:cf09:9c70 with SMTP id a640c23a62f3a-a7dc51061f2mr611137066b.43.1722816140409; Sun, 04 Aug 2024 17:02:20 -0700 (PDT) MIME-Version: 1.0 References: <20240804205309.1978196-1-michael@niedermayer.cc> <20240804205309.1978196-4-michael@niedermayer.cc> In-Reply-To: <20240804205309.1978196-4-michael@niedermayer.cc> From: Kacper Michajlow Date: Mon, 5 Aug 2024 02:02:07 +0200 Message-ID: To: FFmpeg development discussions and patches Subject: Re: [FFmpeg-devel] [PATCH 4/8] avcodec/parser: clear padding in combine frame X-BeenThere: ffmpeg-devel@ffmpeg.org X-Mailman-Version: 2.1.29 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 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" Archived-At: List-Archive: List-Post: On Sun, 4 Aug 2024 at 22:53, Michael Niedermayer wrote: > > Fixes: use-of-uninitialized-value > Fixes: 70852/clusterfuzz-testcase-minimized-ffmpeg_IO_DEMUXER_fuzzer-5179190066872320 > > Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg > Signed-off-by: Michael Niedermayer > --- > libavcodec/parser.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/libavcodec/parser.c b/libavcodec/parser.c > index af17ee9c156..426cc314fb0 100644 > --- a/libavcodec/parser.c > +++ b/libavcodec/parser.c > @@ -236,6 +236,7 @@ int ff_combine_frame(ParseContext *pc, int next, > } > pc->buffer = new_buffer; > memcpy(&pc->buffer[pc->index], *buf, *buf_size); > + memset(&pc->buffer[pc->index + *buf_size], 0, AV_INPUT_BUFFER_PADDING_SIZE); > pc->index += *buf_size; > return -1; > } > -- > 2.45.2 We already had patch like that some time ago, https://patchwork.ffmpeg.org/project/ffmpeg/patch/20240627004037.1336-2-kasper93@gmail.com/ - Kacper _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".