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 48A7C44AB3 for ; Sat, 5 Aug 2023 17:51:59 +0000 (UTC) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id 9EEF868C68D; Sat, 5 Aug 2023 20:51:55 +0300 (EEST) Received: from relay2-d.mail.gandi.net (relay2-d.mail.gandi.net [217.70.183.194]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id AAFC868C200 for ; Sat, 5 Aug 2023 20:51:49 +0300 (EEST) Received: by mail.gandi.net (Postfix) with ESMTPSA id B6FA240002 for ; Sat, 5 Aug 2023 17:51:48 +0000 (UTC) From: Michael Niedermayer To: FFmpeg development discussions and patches Date: Sat, 5 Aug 2023 19:51:48 +0200 Message-Id: <20230805175148.27422-1-michael@niedermayer.cc> X-Mailer: git-send-email 2.17.1 X-GND-Sasl: michael@niedermayer.cc Subject: [FFmpeg-devel] [PATCH] avcodec/tta: fix signed overflow in decorrelate 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: 2079654542 - -139267653 cannot be represented in type 'int' Fixes: 60811/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TTA_fuzzer-5915858409750528 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer --- libavcodec/tta.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/tta.c b/libavcodec/tta.c index 3e89571f16..072e86729d 100644 --- a/libavcodec/tta.c +++ b/libavcodec/tta.c @@ -342,7 +342,7 @@ static int tta_decode_frame(AVCodecContext *avctx, AVFrame *frame, if (s->channels > 1) { int32_t *r = p - 1; for (*p += *r / 2; r > (int32_t*)p - s->channels; r--) - *r = *(r + 1) - *r; + *r = *(r + 1) - (unsigned)*r; } cur_chan = 0; 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".