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 E3F8045DB8 for ; Mon, 10 Apr 2023 23:47:57 +0000 (UTC) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id 1F0CC68BE53; Tue, 11 Apr 2023 02:47:54 +0300 (EEST) Received: from relay9-d.mail.gandi.net (relay9-d.mail.gandi.net [217.70.183.199]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id 98FF068B1AD for ; Tue, 11 Apr 2023 02:47:47 +0300 (EEST) Received: (Authenticated sender: michael@niedermayer.cc) by mail.gandi.net (Postfix) with ESMTPSA id E10D4FF804 for ; Mon, 10 Apr 2023 23:47:46 +0000 (UTC) From: Michael Niedermayer To: FFmpeg development discussions and patches Date: Tue, 11 Apr 2023 01:47:45 +0200 Message-Id: <20230410234745.25355-1-michael@niedermayer.cc> X-Mailer: git-send-email 2.17.1 Subject: [FFmpeg-devel] [PATCH] avformat/rka: bps < 8 is invalid 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: division by zero Fixes: 57828/clusterfuzz-testcase-minimized-ffmpeg_dem_RKA_fuzzer-6571818338353152 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer --- libavformat/rka.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavformat/rka.c b/libavformat/rka.c index 39e5b3bce12..36e25ade017 100644 --- a/libavformat/rka.c +++ b/libavformat/rka.c @@ -72,7 +72,7 @@ static int rka_read_header(AVFormatContext *s) if (channels == 0) return AVERROR_INVALIDDATA; bps = par->extradata[13]; - if (bps == 0) + if (bps < 8) return AVERROR_INVALIDDATA; size_offset = avio_rl32(s->pb); framepos = avio_tell(s->pb); -- 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".