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 6F3084BFDC for ; Sat, 20 Jul 2024 00:52:52 +0000 (UTC) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id CC01F68D88A; Sat, 20 Jul 2024 03:52:49 +0300 (EEST) Received: from relay8-d.mail.gandi.net (relay8-d.mail.gandi.net [217.70.183.201]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id 3AB1A68D7A0 for ; Sat, 20 Jul 2024 03:52:43 +0300 (EEST) Received: by mail.gandi.net (Postfix) with ESMTPSA id 8AA771BF203 for ; Sat, 20 Jul 2024 00:52:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=niedermayer.cc; s=gm1; t=1721436762; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=oHORwLBRLdEm1kQpeUCzBypiEked0vmmLlbdFezaTcQ=; b=Uz1xH1laETGYyht37Jva1TV73Z0A8PQyWcwyW530DnhAFp7v1vDCCBxpJyeUX2F17epK0S d1BBdS8g/dvYxLI37G4qIBOpLZhm0l8HdcSpkoQkqrLRa6zIqjl8vs9Dhi84SR+v/aMWMo w61gbakLdrUkhKx5yzQWrZCgOO4EnGgPOJq0IGHgbCv/Ut+mAvzDTZCawKPw45ewThMLB9 ckHGTwwnelbGfImPBrKCiMAF5HQxiVtBmT3xxtj7QlX6ogcrGQRxHtmbkcWx1egp7XTaZP XUJqccflQCtCkGh5S2IMOof1ixePxM08mHZ3651ivz6yPzmGpmCyWJRKYq8F7w== From: Michael Niedermayer To: FFmpeg development discussions and patches Date: Sat, 20 Jul 2024 02:52:31 +0200 Message-ID: <20240720005241.726089-1-michael@niedermayer.cc> X-Mailer: git-send-email 2.45.2 MIME-Version: 1.0 X-GND-Sasl: michael@niedermayer.cc Subject: [FFmpeg-devel] [PATCH 01/11] avcodec/alsdec: Clear shift_value 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 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: (the exact issue is unreproducable but the use of uninitialized data is reproducable) Should fix: signed integer overflow: -2147483648 - 127 cannot be represented in type 'int' Should fix: 69881/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ALS_fuzzer-4751301204836352 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer --- libavcodec/alsdec.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/libavcodec/alsdec.c b/libavcodec/alsdec.c index be72994432e..f4f67917d76 100644 --- a/libavcodec/alsdec.c +++ b/libavcodec/alsdec.c @@ -2110,8 +2110,8 @@ static av_cold int decode_init(AVCodecContext *avctx) if (sconf->floating) { ctx->acf = av_malloc_array(channels, sizeof(*ctx->acf)); - ctx->shift_value = av_malloc_array(channels, sizeof(*ctx->shift_value)); - ctx->last_shift_value = av_malloc_array(channels, sizeof(*ctx->last_shift_value)); + ctx->shift_value = av_calloc(channels, sizeof(*ctx->shift_value)); + ctx->last_shift_value = av_calloc(channels, sizeof(*ctx->last_shift_value)); ctx->last_acf_mantissa = av_malloc_array(channels, sizeof(*ctx->last_acf_mantissa)); ctx->raw_mantissa = av_calloc(channels, sizeof(*ctx->raw_mantissa)); -- 2.45.2 _______________________________________________ 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".