From patchwork Sun Sep 20 08:52:51 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marton Balint X-Patchwork-Id: 22521 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 D7F5344AA75 for ; Sun, 20 Sep 2020 11:53:03 +0300 (EEST) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id B5B3168B677; Sun, 20 Sep 2020 11:53:03 +0300 (EEST) X-Original-To: ffmpeg-devel@ffmpeg.org Delivered-To: ffmpeg-devel@ffmpeg.org Received: from iq.passwd.hu (iq.passwd.hu [217.27.212.140]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id 2C54268AD9D for ; Sun, 20 Sep 2020 11:52:58 +0300 (EEST) Received: from localhost (localhost [127.0.0.1]) by iq.passwd.hu (Postfix) with ESMTP id 14803E4703; Sun, 20 Sep 2020 10:52:58 +0200 (CEST) X-Virus-Scanned: amavisd-new at passwd.hu Received: from iq.passwd.hu ([127.0.0.1]) by localhost (iq.passwd.hu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id xwiaSE3mo75a; Sun, 20 Sep 2020 10:52:56 +0200 (CEST) Received: from bluegene.passwd.hu (localhost [127.0.0.1]) by iq.passwd.hu (Postfix) with ESMTP id 7A3FFE4702; Sun, 20 Sep 2020 10:52:56 +0200 (CEST) From: Marton Balint To: ffmpeg-devel@ffmpeg.org Date: Sun, 20 Sep 2020 10:52:51 +0200 Message-Id: <20200920085253.7107-1-cus@passwd.hu> X-Mailer: git-send-email 2.26.2 MIME-Version: 1.0 Subject: [FFmpeg-devel] [PATCH 1/3] avformat/aviobuf: read till the very end of the IO buffer 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: Marton Balint Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" There was an off-by-one error when checking if the IO buffer still has enough space till the end. Signed-off-by: Marton Balint --- libavformat/aviobuf.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavformat/aviobuf.c b/libavformat/aviobuf.c index a77517d712..9675425349 100644 --- a/libavformat/aviobuf.c +++ b/libavformat/aviobuf.c @@ -540,7 +540,7 @@ static void fill_buffer(AVIOContext *s) { int max_buffer_size = s->max_packet_size ? s->max_packet_size : IO_BUFFER_SIZE; - uint8_t *dst = s->buf_end - s->buffer + max_buffer_size < s->buffer_size ? + uint8_t *dst = s->buf_end - s->buffer + max_buffer_size <= s->buffer_size ? s->buf_end : s->buffer; int len = s->buffer_size - (dst - s->buffer);