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 ESMTPS id 405A44DC73 for ; Sun, 2 Mar 2025 02:53:22 +0000 (UTC) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id A0EF668E2D8; Sun, 2 Mar 2025 04:53:18 +0200 (EET) Received: from mail-pl1-f176.google.com (mail-pl1-f176.google.com [209.85.214.176]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id 96FC068DE79 for ; Sun, 2 Mar 2025 04:53:12 +0200 (EET) Received: by mail-pl1-f176.google.com with SMTP id d9443c01a7336-22356471820so52408025ad.0 for ; Sat, 01 Mar 2025 18:53:12 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1740883990; x=1741488790; darn=ffmpeg.org; h=content-transfer-encoding:mime-version:message-id:date:subject:to :from:from:to:cc:subject:date:message-id:reply-to; bh=jBMyXmYSE+PzfK3cvsJfOgVCuMBADdZNj2oQrVO31kw=; b=jUAkF9iN2zRBjXaWbptj52W+RRfVML1gjem1nvhn90LsKg25u4uHAviyZ1CXshZ9zu J9ONiNe6jwD0lTUatsOf7o8Mxepz17Hw9pSHJBFWN8oYojBjRV4xzI+zFD+URFNCAahT 1wDVmYaVIAMUZUTQUpi9vt9Z7mcMPNWN71A2ibUHfzkc9G9nrTODiTFjZRS3lH9uJwkf b92eCxhmA8d16lrFn3qWTf+Ll4H9DSbOkRU5xj5bbZZfBnApMCO095Tei3ozPTiLJu/F DvmMHSyEgwWG9zMmz3jySMwkHjGBt8Ogyb/5ov9qJalyXTRVrzzdnKgZidmYOi+iNipf wdgQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1740883990; x=1741488790; h=content-transfer-encoding:mime-version:message-id:date:subject:to :from:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=jBMyXmYSE+PzfK3cvsJfOgVCuMBADdZNj2oQrVO31kw=; b=Tok2V4zKb0c4BDNKdcFoBdIYbhZOiv7Q5YkUZX7EyC8gTDPa6oOWR/NvZFvZHN1+Eg WTjCef08B8XYKaikqlG63gyvjiMYo/L1acv4bwYDPZsKcija7lNJLP/9SbsOwtZLZqBi 6eA/ZMOC60Soi5feFCs1x5MJouxeR/AfIX6Yys9q2XyxOeW9sX3NTeaAKZ3AGFfe1XZv OeCQG0unGX67c+S6Y6ZjSX8gIG4qQcktOBEvpqXEQyJmkul+VUyT5njDm/0Hvg0UP6NT d+PFQqkoY91x14xhcS5Ggx5XZTC/ikQuLc3+Dk9zPam03ilfiI8Y3NRMgC2Rg8VAKXJd 2bjw== X-Gm-Message-State: AOJu0Yz7lKSGXuIiB/zV/ltfV80JGHNAJiG0VFt2efhv91gfxqsAbIPq iez83Ye8GGzoG3LxHVAgB6Hg0fUMSdTiaL7Kq+8dOi56j30II/HM4I1Uqg== X-Gm-Gg: ASbGncuCRF13CEB7O5s5nJD8AUgc41YKuIanGscQRfJ5gckwPBgQyEVCHcIyQciG6aC BkW8Wy1OPu3IdqFZzO8iiO6Tr/AkD2MngxZAQljm+qlbxVGXYlvCV8LVoYbRuE7GjxQSxzDc+Rb GdRGf+OjoievJxY9XUIQLykW4vqZxYDqbhmb583ECMGYaM2A91/7aJzc3zMGXdjTg8uVqERVEQe OqSmIimh6BP9hhYnZu0Wpce7ECPJPMAi1pf0bcQVHO013kEy8N0sAE8XPQweL36AOS4bQZqRoC7 l1cUB1JCTmUgBpZLQ/XvhdW527k4wzdvtYN5viM5Bnw2sxPIVVKJqLzXwatqjA== X-Google-Smtp-Source: AGHT+IHRjpS6VqOuaBVK5T1Txbp53v0r2P1XJzfCr3dxYcIuEVRGcUQb39dDnjFDRymQDU/DMvaoLQ== X-Received: by 2002:a05:6a00:3e25:b0:734:b53:5826 with SMTP id d2e1a72fcca58-734ac379b63mr11852882b3a.14.1740883989797; Sat, 01 Mar 2025 18:53:09 -0800 (PST) Received: from localhost.localdomain ([2800:2121:b040:c:78f2:2b99:31b2:359d]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-734a006010esm6436670b3a.179.2025.03.01.18.53.08 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 01 Mar 2025 18:53:09 -0800 (PST) From: James Almer To: ffmpeg-devel@ffmpeg.org Date: Sat, 1 Mar 2025 23:52:43 -0300 Message-ID: <20250302025243.342-1-jamrial@gmail.com> X-Mailer: git-send-email 2.48.1 MIME-Version: 1.0 Subject: [FFmpeg-devel] [PATCH] avformat/mov: fix overflow in corrected_dts calculation 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: Fixes: Integer-overflow Fixes: 400093647/clusterfuzz-testcase-minimized-media_metadata_parser_fuzzer-4794341562187776 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: James Almer --- libavformat/mov.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavformat/mov.c b/libavformat/mov.c index ee44b10435..57d9364ea2 100644 --- a/libavformat/mov.c +++ b/libavformat/mov.c @@ -3539,7 +3539,7 @@ static int mov_read_stts(MOVContext *c, AVIOContext *pb, MOVAtom atom) av_log(c->fc, AV_LOG_WARNING, "Too large sample offset %u in stts entry %u with count %u in st:%d. Clipping to 1.\n", sample_duration, i, sample_count, st->index); sc->stts_data[i].duration = 1; - corrected_dts += (delta_magnitude < 0 ? (int64_t)delta_magnitude : 1) * sample_count; + corrected_dts = av_sat_add64(corrected_dts, (delta_magnitude < 0 ? (int64_t)delta_magnitude : 1) * sample_count); } else { corrected_dts += sample_duration * (uint64_t)sample_count; } -- 2.48.1 _______________________________________________ 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".