From patchwork Sat Nov 7 23:17:08 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michael Niedermayer X-Patchwork-Id: 23431 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 0E69344B29C for ; Sun, 8 Nov 2020 01:24:28 +0200 (EET) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id E6C5E68BB79; Sun, 8 Nov 2020 01:24:27 +0200 (EET) X-Original-To: ffmpeg-devel@ffmpeg.org Delivered-To: ffmpeg-devel@ffmpeg.org Received: from vie01a-dmta-pe03-1.mx.upcmail.net (vie01a-dmta-pe03-1.mx.upcmail.net [62.179.121.160]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id 36DC468BB58 for ; Sun, 8 Nov 2020 01:24:21 +0200 (EET) Received: from [172.31.216.235] (helo=vie01a-pemc-psmtp-pe12.mail.upcmail.net) by vie01a-dmta-pe03.mx.upcmail.net with esmtp (Exim 4.92) (envelope-from ) id 1kbXTH-0008Al-0K for ffmpeg-devel@ffmpeg.org; Sun, 08 Nov 2020 00:18:11 +0100 Received: from localhost ([213.47.68.29]) by vie01a-pemc-psmtp-pe12.mail.upcmail.net with ESMTP id bXSJknnKQIr7GbXSJkOReo; Sun, 08 Nov 2020 00:17:11 +0100 X-Env-Mailfrom: michael@niedermayer.cc X-Env-Rcptto: ffmpeg-devel@ffmpeg.org X-SourceIP: 213.47.68.29 X-CNFS-Analysis: v=2.3 cv=QN4WuTDL c=1 sm=1 tr=0 a=2hcxjKEKjp0CzLx6oWAm4g==:117 a=2hcxjKEKjp0CzLx6oWAm4g==:17 a=MKtGQD3n3ToA:10 a=1oJP67jkp3AA:10 a=GEAsPZ9sns4A:10 a=ZZnuYtJkoWoA:10 a=nZOtpAppAAAA:20 a=M15RGTYj9eMknBdIAZMA:9 a=1fhp2MxaeJtTNGEnv6mo:22 a=Z5ABNNGmrOfJ6cZ5bIyy:22 a=UDnyf2zBuKT2w-IlGP_r:22 From: Michael Niedermayer To: FFmpeg development discussions and patches Date: Sun, 8 Nov 2020 00:17:08 +0100 Message-Id: <20201107231710.24816-3-michael@niedermayer.cc> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20201107231710.24816-1-michael@niedermayer.cc> References: <20201107231710.24816-1-michael@niedermayer.cc> X-CMAE-Envelope: MS4wfGbimcmtZGEu0iCVeJIrVEDDVKJmySs+WrY3aA1W4Sy7PHjbB8rFA4wMgwm0puUtfL8GTYsK/+UJHffPRtncnieUndzsFYgzkNhsvyLeLmZJYvS24Igl yfv1Fw2TpUhK94GZC0CUGYw2/ZrLb/Aw2gSBSr/nR3pxyZKZQtwNlpa1 Subject: [FFmpeg-devel] [PATCH 3/5] avformat/utils: wrap_timestamp() is only needed for less than 64 bits 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 MIME-Version: 1.0 Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" Fixes: shift exponent 64 is too large for 64-bit type 'unsigned long long' Fixes: 26497/clusterfuzz-testcase-minimized-ffmpeg_dem_AVI_fuzzer-5690188355076096 Fixes: 26903/clusterfuzz-testcase-minimized-ffmpeg_dem_LUODAT_fuzzer-5641466929741824 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer --- libavformat/utils.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavformat/utils.c b/libavformat/utils.c index 503e583ad0..e4a4e7651b 100644 --- a/libavformat/utils.c +++ b/libavformat/utils.c @@ -101,7 +101,7 @@ static int is_relative(int64_t ts) { */ static int64_t wrap_timestamp(const AVStream *st, int64_t timestamp) { - if (st->internal->pts_wrap_behavior != AV_PTS_WRAP_IGNORE && + if (st->internal->pts_wrap_behavior != AV_PTS_WRAP_IGNORE && st->pts_wrap_bits < 64 && st->internal->pts_wrap_reference != AV_NOPTS_VALUE && timestamp != AV_NOPTS_VALUE) { if (st->internal->pts_wrap_behavior == AV_PTS_WRAP_ADD_OFFSET && timestamp < st->internal->pts_wrap_reference)