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 1D88347740 for ; Sun, 22 Oct 2023 00:36:08 +0000 (UTC) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id BD8AA68CADD; Sun, 22 Oct 2023 03:35:34 +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 ADA2D68CA72 for ; Sun, 22 Oct 2023 03:35:25 +0300 (EEST) Received: by mail.gandi.net (Postfix) with ESMTPSA id 0270CFF806 for ; Sun, 22 Oct 2023 00:35:24 +0000 (UTC) From: Michael Niedermayer To: FFmpeg development discussions and patches Date: Sun, 22 Oct 2023 02:35:19 +0200 Message-Id: <20231022003520.17154-5-michael@niedermayer.cc> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20231022003520.17154-1-michael@niedermayer.cc> References: <20231022003520.17154-1-michael@niedermayer.cc> X-GND-Sasl: michael@niedermayer.cc Subject: [FFmpeg-devel] [PATCH 5/6] avutil/tx_template: fix integer ovberflwo in fft3() 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: -1028966111 + -1314089526 cannot be represented in type 'int' Fixes: 63174/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_AAC_FIXED_fuzzer-5853273711837184 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer --- libavutil/tx_template.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/libavutil/tx_template.c b/libavutil/tx_template.c index 8dc3d2519c1..a2c27465cbc 100644 --- a/libavutil/tx_template.c +++ b/libavutil/tx_template.c @@ -185,10 +185,9 @@ static av_always_inline void fft3(TXComplex *out, TXComplex *in, BF(tmp[1].re, tmp[2].im, in[1].im, in[2].im); BF(tmp[1].im, tmp[2].re, in[1].re, in[2].re); - out[0*stride].re = tmp[0].re + tmp[2].re; - out[0*stride].im = tmp[0].im + tmp[2].im; - #ifdef TX_INT32 + out[0*stride].re = (int64_t)tmp[0].re + tmp[2].re; + out[0*stride].im = (int64_t)tmp[0].im + tmp[2].im; mtmp[0] = (int64_t)tab[ 8] * tmp[1].re; mtmp[1] = (int64_t)tab[ 9] * tmp[1].im; mtmp[2] = (int64_t)tab[10] * tmp[2].re; @@ -198,6 +197,8 @@ static av_always_inline void fft3(TXComplex *out, TXComplex *in, out[2*stride].re = tmp[0].re - (mtmp[2] - mtmp[0] + 0x40000000 >> 31); out[2*stride].im = tmp[0].im - (mtmp[3] + mtmp[1] + 0x40000000 >> 31); #else + out[0*stride].re = tmp[0].re + tmp[2].re; + out[0*stride].im = tmp[0].im + tmp[2].im; tmp[1].re = tab[ 8] * tmp[1].re; tmp[1].im = tab[ 9] * tmp[1].im; tmp[2].re = tab[10] * tmp[2].re; -- 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".