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[2604:1380:40f1:3f00::1]) by mx.google.com with ESMTPS id c23-20020a170902b69700b001d491907feasi413327pls.487.2023.12.27.21.56.59 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 27 Dec 2023 21:56:59 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel+bounces-12435-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:40f1:3f00::1 as permitted sender) client-ip=2604:1380:40f1:3f00::1; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel+bounces-12435-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:40f1:3f00::1 as permitted sender) smtp.mailfrom="linux-kernel+bounces-12435-linux.lists.archive=gmail.com@vger.kernel.org"; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=appspotmail.com Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sy.mirrors.kernel.org (Postfix) with ESMTPS id 3DC35B21BA3 for ; Thu, 28 Dec 2023 05:56:57 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id C51E93C3B; Thu, 28 Dec 2023 05:56:48 +0000 (UTC) X-Original-To: linux-kernel@vger.kernel.org Received: from mail-io1-f71.google.com (mail-io1-f71.google.com [209.85.166.71]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1FB9F3C00 for ; Thu, 28 Dec 2023 05:56:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-io1-f71.google.com with SMTP id ca18e2360f4ac-7ba74d90a71so847469639f.0 for ; Wed, 27 Dec 2023 21:56:46 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1703743006; x=1704347806; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=0e0tkyTgAjZp6wKBBZLPGdjk/383LVlJeAZReEPGEH4=; b=COcgK59oiqW/iQyZea49khlBEE3nBHEYx9UElcxFnLojQ+pIV8iPWICEH8qQOG4riQ GpuVBITOZA5uwfl5BjF6Hv3ymph1u3qucCZ3SAr/IlH0P58S78pqNxFo5YoEiw7GWwz1 X8iio87thN8LF+Z8Ur/RVHtM/1ASUhvYz76as2sUrlODYnKAEpkf/fKz453YKdfKItsq 2aoJURgwvLgSewEq+cJzVXq6lnid8fG7rOmL9sj4A2Q0u18+NKCrOxpLzLjdrMiT/Vtw ykOJzErp3yAH8buJhbSnI7Hyz7TEI9VdLENGOYkAKLBZmM1BcAZXKbo9QiFmYnW42Wnl FxAg== X-Gm-Message-State: AOJu0YyTscZxJ06b97QTPhpxEJeqLuUDeDrrJSpN89O2GGSvMEP5G0gD gBFb8haQqvtjHPinNolo+7Nat0kr77ZQdDMrwbvqGUglJcgkRFI= Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1c28:b0:35f:9ada:73a8 with SMTP id m8-20020a056e021c2800b0035f9ada73a8mr1452787ilh.2.1703743006391; Wed, 27 Dec 2023 21:56:46 -0800 (PST) Date: Wed, 27 Dec 2023 21:56:46 -0800 In-Reply-To: <000000000000321c24060d7cfa1c@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000af4643060d8b94e6@google.com> Subject: Re: [syzbot] [erofs?] KMSAN: uninit-value in z_erofs_lz4_decompress (2) From: syzbot To: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="UTF-8" For archival purposes, forwarding an incoming command email to linux-kernel@vger.kernel.org. *** Subject: [erofs?] KMSAN: uninit-value in z_erofs_lz4_decompress (2) Author: lizhi.xu@windriver.com #syz test https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git fbafc3e621c3 diff --git a/lib/hexdump.c b/lib/hexdump.c index 06833d404398..e146b1bf73dc 100644 --- a/lib/hexdump.c +++ b/lib/hexdump.c @@ -264,7 +264,7 @@ void print_hex_dump(const char *level, const char *prefix_str, int prefix_type, { const u8 *ptr = buf; int i, linelen, remaining = len; - unsigned char linebuf[32 * 3 + 2 + 32 + 1]; + unsigned char linebuf[32 * 3 + 2 + 32 + 1] = ""; if (rowsize != 16 && rowsize != 32) rowsize = 16;