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 B090541A43 for ; Sat, 17 Sep 2022 21:16:19 +0000 (UTC) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id C560368BB90; Sun, 18 Sep 2022 00:16:07 +0300 (EEST) Received: from vie01a-dmta-at01-2.mx.upcmail.net (vie01a-dmta-at01-2.mx.upcmail.net [62.179.121.146]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id 4387768B9C0 for ; Sun, 18 Sep 2022 00:16:00 +0300 (EEST) Received: from [172.31.216.235] (helo=vie01a-pemc-psmtp-pe12.mail.upcmail.net) by vie01a-dmta-at01.mx.upcmail.net with esmtp (Exim 4.92) (envelope-from ) id 1oZfAN-00GP11-FM for ffmpeg-devel@ffmpeg.org; Sat, 17 Sep 2022 23:15:59 +0200 Received: from ren-mail-psmtp-mg02. ([80.109.253.241]) by vie01a-pemc-psmtp-pe12.mail.upcmail.net with ESMTP id ZfAMoPQUB8s8UZfANoEt8F; Sat, 17 Sep 2022 23:15:59 +0200 Received: from localhost ([213.47.68.29]) by ren-mail-psmtp-mg02. with ESMTP id ZfANoy3fAbZLDZfANoILBU; Sat, 17 Sep 2022 23:15:59 +0200 X-Env-Mailfrom: michael@niedermayer.cc X-Env-Rcptto: ffmpeg-devel@ffmpeg.org X-SourceIP: 213.47.68.29 X-CNFS-Analysis: v=2.4 cv=Ufwy9IeN c=1 sm=1 tr=0 ts=6326390f a=2hcxjKEKjp0CzLx6oWAm4g==:117 a=2hcxjKEKjp0CzLx6oWAm4g==:17 a=MKtGQD3n3ToA:10 a=1oJP67jkp3AA:10 a=GEAsPZ9sns4A:10 a=NEAV23lmAAAA:8 a=-_9i-eTdipuMXZ40kBcA:9 From: Michael Niedermayer To: FFmpeg development discussions and patches Date: Sat, 17 Sep 2022 23:15:53 +0200 Message-Id: <20220917211557.11547-5-michael@niedermayer.cc> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20220917211557.11547-1-michael@niedermayer.cc> References: <20220917211557.11547-1-michael@niedermayer.cc> X-CMAE-Envelope: MS4wfKq4dzuArM76/NQYEO8esUrYd/wGR+o9H8JdspmBJiwZ/HNIHdoZoOQSAS1nZKd+h80BO8gdwGZHODuVtRQFAsm9g6cq+cIEEhGC8pPbThrywiQapkfX yVs2opJftzUeWjVoArRQaM3+Z4p/1LPCNOzHTxhrhT2zXoNe2p1QCHtOtTAKaBj5pvMXrfqOXPe7Ag== Subject: [FFmpeg-devel] [PATCH 5/9] avformat/dhav: Use 64bit seek_back 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: negation of -2147483648 cannot be represented in type 'int'; cast to an unsigned type to negate this value to itself Fixes: 50993/clusterfuzz-testcase-minimized-ffmpeg_dem_DHAV_fuzzer-6604736532447232 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer --- libavformat/dhav.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavformat/dhav.c b/libavformat/dhav.c index 9d26efe8fc9..4e720f2a26c 100644 --- a/libavformat/dhav.c +++ b/libavformat/dhav.c @@ -242,7 +242,7 @@ static int64_t get_duration(AVFormatContext *s) avio_seek(s->pb, avio_size(s->pb) - 8, SEEK_SET); while (avio_tell(s->pb) > 12 && max_interations--) { if (avio_rl32(s->pb) == MKTAG('d','h','a','v')) { - int seek_back = avio_rl32(s->pb); + int64_t seek_back = avio_rl32(s->pb); avio_seek(s->pb, -seek_back, SEEK_CUR); read_chunk(s); -- 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".