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 9CCC743EA2 for ; Sun, 18 Dec 2022 17:09:09 +0000 (UTC) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id 717E668B9F3; Sun, 18 Dec 2022 19:08:44 +0200 (EET) 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 7777468B3EA for ; Sun, 18 Dec 2022 19:08:38 +0200 (EET) Received: (Authenticated sender: michael@niedermayer.cc) by mail.gandi.net (Postfix) with ESMTPSA id 6B41D40002 for ; Sun, 18 Dec 2022 17:08:37 +0000 (UTC) From: Michael Niedermayer To: FFmpeg development discussions and patches Date: Sun, 18 Dec 2022 18:08:23 +0100 Message-Id: <20221218170823.32130-5-michael@niedermayer.cc> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20221218170823.32130-1-michael@niedermayer.cc> References: <20221218170823.32130-1-michael@niedermayer.cc> Subject: [FFmpeg-devel] [PATCH 5/5] avcodec/wavpack: Avoid undefined shift in get_tail() 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: left shift of 1208485947 by 1 places cannot be represented in type 'int' Fixes: 54058/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WAVPACK_fuzzer-5827521084260352 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer --- libavcodec/wavpack.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/wavpack.c b/libavcodec/wavpack.c index 3cb4077550..42859ab0a1 100644 --- a/libavcodec/wavpack.c +++ b/libavcodec/wavpack.c @@ -129,7 +129,7 @@ static av_always_inline unsigned get_tail(GetBitContext *gb, unsigned k) e = (1LL << (p + 1)) - k - 1; res = get_bits_long(gb, p); if (res >= e) - res = (res << 1) - e + get_bits1(gb); + res = ((unsigned)res << 1) - e + get_bits1(gb); return res; } -- 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".