From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from m16.mail.163.com (m16.mail.163.com [117.135.210.5]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 23FA5193439; Sat, 12 Oct 2024 14:16:39 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=117.135.210.5 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728742603; cv=none; b=epWbHGbckvNjOdEThMTYEVc12EiZ4mz7hwJoq6zfGlB8L2cFEub2Wv8swK6HYoEzAazHDGy5pgMr7tWmcO3KIDfjzQckbjdOkrTHYjbJDW3eMq/tZl29eRNg3s85PEx1R7UPynTnny+PgugUhhYUMBGXbaqAaXoGOstwg3Dn/84= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728742603; c=relaxed/simple; bh=hnjqJAicNpi1ppzn2fCTsk0vmq+3hV5cnMIY8X713jk=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=T5n9qCDtlNowRXgtuapsLxpCH26320559c13h1EmGOkzDYFe5V+H3N2MbHXogoviSRRk3+x39ha9VUSsB37kbziDiw9QHHvelPjYUq1AvY6ZRviueCwYynsVAuvEbwlfVj1xxzHMYBN+j/EigPi2YJI7h8KHHXuqhjdpJlRJimA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com; spf=pass smtp.mailfrom=163.com; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b=fuNp9oMw; arc=none smtp.client-ip=117.135.210.5 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=163.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b="fuNp9oMw" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=Date:From:Subject:Message-ID:MIME-Version: Content-Type; bh=24tjo+rrRkBg2Z20Lxo6DBsmtNmJsyIj1nNDj4+ZmG0=; b=fuNp9oMwlZ2QZrIqqrzWkofbhGW2rfFqrQT24XixgfG0QmA0E+hKZrfQQHJs4t tn/VmUmbs8DWAFBSOHklnso6ZSN7B8tQAM/lSfHUe2IMdc3FYdpBh8HlzR0GagGs 9PAf8Tb6fKWwUMv8ecb/M9ArmFktkBGB3eKBSb4NBKKU8= Received: from localhost (unknown [58.243.42.186]) by gzsmtp1 (Coremail) with SMTP id sCgvCgAHOnGKhApnaRqWAA--.26891S2; Sat, 12 Oct 2024 22:15:38 +0800 (CST) Date: Sat, 12 Oct 2024 22:15:38 +0800 From: Qianqiang Liu To: syzbot Cc: davem@davemloft.net, edumazet@google.com, krzk@kernel.org, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, pabeni@redhat.com, syzkaller-bugs@googlegroups.com Subject: Re: [syzbot] [net?] [nfc?] KMSAN: uninit-value in nci_ntf_packet (3) Message-ID: References: <000000000000dbc80e061b01a34f@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <000000000000dbc80e061b01a34f@google.com> X-CM-TRANSID:sCgvCgAHOnGKhApnaRqWAA--.26891S2 X-Coremail-Antispam: 1Uf129KBjDUn29KB7ZKAUJUUUUU529EdanIXcx71UUUUU7v73 VFW2AGmfu7bjvjm3AaLaJ3UbIYCTnIWIevJa73UjIFyTuYvjxU8Q6JUUUUU X-CM-SenderInfo: xtld01pldqwhxolxqiywtou0bp/1tbiRRB2amcKfY1iugAAsM #syz test diff --git a/drivers/nfc/virtual_ncidev.c b/drivers/nfc/virtual_ncidev.c index 6b89d596ba9a..31da26287327 100644 --- a/drivers/nfc/virtual_ncidev.c +++ b/drivers/nfc/virtual_ncidev.c @@ -117,7 +117,7 @@ static ssize_t virtual_ncidev_write(struct file *file, struct virtual_nci_dev *vdev = file->private_data; struct sk_buff *skb; - skb = alloc_skb(count, GFP_KERNEL); + skb = alloc_skb(count, GFP_KERNEL | __GFP_ZERO); if (!skb) return -ENOMEM; -- Best, Qianqiang Liu