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 943CE45CD9 for ; Sat, 30 Sep 2023 22:32:28 +0000 (UTC) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id 7312D68CD90; Sun, 1 Oct 2023 01:31:06 +0300 (EEST) Received: from relay1-d.mail.gandi.net (relay1-d.mail.gandi.net [217.70.183.193]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id 68A4068CD5D for ; Sun, 1 Oct 2023 01:31:00 +0300 (EEST) Received: by mail.gandi.net (Postfix) with ESMTPSA id B8C83240002 for ; Sat, 30 Sep 2023 22:30:59 +0000 (UTC) From: Michael Niedermayer To: FFmpeg development discussions and patches Date: Sun, 1 Oct 2023 00:30:45 +0200 Message-Id: <20230930223046.22896-14-michael@niedermayer.cc> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20230930223046.22896-1-michael@niedermayer.cc> References: <20230930223046.22896-1-michael@niedermayer.cc> X-GND-Sasl: michael@niedermayer.cc Subject: [FFmpeg-devel] [PATCH 14/15] avformat/asfdec_f: Saturate presentation time in marker 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 MIME-Version: 1.0 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: signed integer overflow: -9223372036315799520 - 3873890816 cannot be represented in type 'long' Fixes: 51896/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-5009302746431488 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer --- libavformat/asfdec_f.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavformat/asfdec_f.c b/libavformat/asfdec_f.c index 54059564670..a579c3e894b 100644 --- a/libavformat/asfdec_f.c +++ b/libavformat/asfdec_f.c @@ -674,7 +674,7 @@ static int asf_read_marker(AVFormatContext *s) avio_rl64(pb); // offset, 8 bytes pres_time = avio_rl64(pb); // presentation time - pres_time -= asf->hdr.preroll * 10000; + pres_time = av_sat_sub64(pres_time, asf->hdr.preroll * 10000); avio_rl16(pb); // entry length avio_rl32(pb); // send time avio_rl32(pb); // flags -- 2.17.1 _______________________________________________ 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".