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 CEEA540611 for ; Mon, 28 Mar 2022 11:53:22 +0000 (UTC) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id BFE3068B120; Mon, 28 Mar 2022 14:53:19 +0300 (EEST) Received: from vie01a-dmta-at03-1.mx.upcmail.net (vie01a-dmta-at03-1.mx.upcmail.net [62.179.121.151]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id BE7DC68A70F for ; Mon, 28 Mar 2022 14:53:13 +0300 (EEST) Received: from [172.31.216.235] (helo=vie01a-pemc-psmtp-pe12.mail.upcmail.net) by vie01a-dmta-at03.mx.upcmail.net with esmtp (Exim 4.92) (envelope-from ) id 1nYnvm-0007RE-Cn for ffmpeg-devel@ffmpeg.org; Mon, 28 Mar 2022 13:53:06 +0200 Received: from ren-mail-psmtp-mg02. ([80.109.253.241]) by vie01a-pemc-psmtp-pe12.mail.upcmail.net with ESMTP id YnjLn6RFMSgGFYnvmnfNYs; Mon, 28 Mar 2022 13:53:06 +0200 Received: from localhost ([213.47.68.29]) by ren-mail-psmtp-mg02. with ESMTP id YnvXnrHlo8eSWYnvXn3d02; Mon, 28 Mar 2022 13:52:51 +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=KKE5sHJo c=1 sm=1 tr=0 ts=6241a1a2 a=2hcxjKEKjp0CzLx6oWAm4g==:117 a=2hcxjKEKjp0CzLx6oWAm4g==:17 a=MKtGQD3n3ToA:10 a=1oJP67jkp3AA:10 a=GEAsPZ9sns4A:10 a=ZZnuYtJkoWoA:10 a=NEAV23lmAAAA:8 a=IpUFQXIsYts-bYstkN4A:9 From: Michael Niedermayer To: FFmpeg development discussions and patches Date: Mon, 28 Mar 2022 13:52:50 +0200 Message-Id: <20220328115251.24867-1-michael@niedermayer.cc> X-Mailer: git-send-email 2.17.1 X-CMAE-Envelope: MS4wfOSpp5/Gb4Fw7DEo+SnbYO6V87l2JxLLNbvN4HPshecZ3jd5x35MMemG7olWaK3rKD5m+l2L6Ug6FwHPi2AopfqX/CGPSXVEFfU2TszgLMpO6IdG+EZN QhIvNDuqU0i9J/jQKmGSNMh2PRXaFKOjinF9IJ4//LqY5CTatGsgPHjosfg4gEBcSEaPr1nZNLug1g== Subject: [FFmpeg-devel] [PATCH 1/2] avcodec/apedec: fix a integer overflow in long_filter_high_3800() 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: -2146549696 - 3923884 cannot be represented in type 'int' Fixes: 45907/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_APE_fuzzer-5992380584558592 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer --- libavcodec/apedec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/apedec.c b/libavcodec/apedec.c index f7f8a88994..65e5d152e0 100644 --- a/libavcodec/apedec.c +++ b/libavcodec/apedec.c @@ -959,7 +959,7 @@ static void long_filter_high_3800(int32_t *buffer, int order, int shift, int len dotprod += delay[j] * (unsigned)coeffs[j]; coeffs[j] += ((delay[j] >> 31) | 1) * sign; } - buffer[i] -= dotprod >> shift; + buffer[i] -= (unsigned)(dotprod >> shift); for (j = 0; j < order - 1; j++) delay[j] = delay[j + 1]; delay[order - 1] = buffer[i]; -- 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".