From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pg1-f173.google.com (mail-pg1-f173.google.com [209.85.215.173]) (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 B35C52DEA80 for ; Mon, 10 Nov 2025 20:02:18 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.215.173 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762804940; cv=none; b=QzIfQtxqFqd9JQXX4eT5Jl/n4kqQU4I3m2Rwu8S+Gx4VTPLwgY14phr6oJk3X653eHaQs1OMTYJOw8w7YRK6Z0bTx98iGTcMQIoskt8ZUeLV5ur1zjgxw0JlQMudZjuH7FS019Y2yaNldbbg+a4OK3WTiLxTMOCwpHM2Q87uaQ4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762804940; c=relaxed/simple; bh=WEbUCqKPpqNwVY1zEPDo64sJfZj+DKjf0qTpZ5wdgfo=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=EsKbiqNNDHoUelJnagAqNwMH3zCOQt/MwPb5F4y5JqV6D00TTo8wa9jn2ZCzurMlSnUDl8zNs9yVp0vPpPxdQPEpqniMhXI+pvVk8+AJ+LaTAYYUKLXGUqOB+F25sC/nYa9Q2v5ByPl3//3dsDtgqRh4tIybmx6mHnOKRTUX4+g= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=H0MMjHYL; arc=none smtp.client-ip=209.85.215.173 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="H0MMjHYL" Received: by mail-pg1-f173.google.com with SMTP id 41be03b00d2f7-b98983baeacso1355933a12.1 for ; Mon, 10 Nov 2025 12:02:18 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1762804938; x=1763409738; darn=vger.kernel.org; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=0NLYN6jTBEGwmHxj0J2TeyxS9PbPiD4fPo/j2nnYR3E=; b=H0MMjHYLFhbaiGud6XqzQNAlgdWZuWDFA1MdfQjuaI4XTFwkbEXIkeuK9swa3VbLgl P2NluPnBZSgQ7gI3Ir6904KbVN2DSCr+FsH+ftX0M9/kYAuRpmmeCWUusdhK1SEiNjGC 0H+Qs6+xYj/xDN5KGTx3nZ8pnLtc+lPOYS22nnkz5if4dILv/6ZCp6eXv1OLiZ462ur1 j8Wtjz3XJlSk6QI2+QnnivCKcrbL4m/agB9f+aQWDLB+B/IrXiSQn6ni5a6BcX2kWpNk IYk8uoSofJc91BfW8koVHNTqCSvoUZEh8FMDGu7BRsY5/bH7tbFXW/JYFWfH4SG47oXU FvTA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1762804938; x=1763409738; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-gg:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=0NLYN6jTBEGwmHxj0J2TeyxS9PbPiD4fPo/j2nnYR3E=; b=LDQaLx8rAlLJ518miohC5IvqtMP2XcupFAoRKRdW8gI7sC1KA/U3ysUEPIIvNORjle mRknnvML1bUNNhCtOdd3XPknJGlVNoRHc+6sNXd3pfbkMeTdjfqD202FzvlGFUpL1vRV GPTWTS+Xgi147k1sK8ECFhmp3JIrvDBfwGEgm/mdNEoI56w5N2UqXTn9rO4wvdc1OPjV bBJ3ZhlqpQ0gHWljvbEb5o7JsDe17kfHOJg92yII4WphEWuG/AJmDD7xiDpc8DudFODx q+hsW3HamYEHe9Vi6Lj0BswQBqKHNzGH+ynj1p9HkkgBm+Uwrf+O1jqfalmzhZqeHlHx bTGg== X-Forwarded-Encrypted: i=1; AJvYcCV9YI4WKoZVCwvR8GDi13zg1dRS9UlkQ5atEVFVGFQ5ypQshld81R+TmNiLrGkOsdIYhUQ6Yf5exyjhNis=@vger.kernel.org X-Gm-Message-State: AOJu0YwrkwP4XtpzAdgsSa1vpL/bHRG//e6XC5Jy33aHVIAsKyMyyUM8 UYPGNasM8krqmMZ15Ek/0hGm9r0JJZq9a5kAZwTQO+BmhihSzeIyVP2l X-Gm-Gg: ASbGnctJOI9cwOF2XY6FUoRUPYiuhW2Lhidu6Cc7ULDEiluTqh0QJEwG7MOiAypEScn uvTKNFC98JtcoZ8HvgwNQqNDJTimPYBk183F8EowaKVkckXy8gW3EVVnW54uK0ggPDAAUtEaeko BGry8N5qFeBDxg+BXjSu+Xli4eZrU051b4MoUnpu8FDhL4xLT1IEkX7QeVOG4AKqgp7cQVuv9M3 18c531l9HvCfhrSSoKE58JWSuFdJOfc1o7PekoHLbm0TnxmxOic99O8iymKYGF6u6BXRqTKxhG+ MRup3rWCzVpW+U98/DSDOlsHRXz9LIpFxRKEPWvAZ15wWTZXzT3yELFhVm1BJyr9OCNhMsecNut QBFEnqF+d/sl6IirL3HrYOBFHTtFo8pu6A9r11w4BMcn6BdTnVEGU/BN4HL//u6JIbFvbKsH/js yZnvBQ5w== X-Google-Smtp-Source: AGHT+IEx5DrKUEdpyrpancufPKZNJjbcQnhJSxpDOTbqT+ORySyjiLg4DxwBtCBYpfTv90p5Dx8iQQ== X-Received: by 2002:a17:903:1a27:b0:297:ec1a:9db8 with SMTP id d9443c01a7336-297ec1a9e0dmr131667795ad.49.1762804937650; Mon, 10 Nov 2025 12:02:17 -0800 (PST) Received: from localhost ([2601:647:6881:9060:9974:abff:f64:1199]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-341a699c011sm18596997a91.14.2025.11.10.12.02.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 10 Nov 2025 12:02:17 -0800 (PST) Date: Mon, 10 Nov 2025 12:02:15 -0800 From: Cong Wang To: Ranganath V N Cc: edumazet@google.com, davem@davemloft.net, david.hunter.linux@gmail.com, horms@kernel.org, jhs@mojatatu.com, jiri@resnulli.us, khalid@kernel.org, kuba@kernel.org, pabeni@redhat.com, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, skhan@linuxfoundation.org, syzbot+0c85cae3350b7d486aee@syzkaller.appspotmail.com Subject: Re: [PATCH v4 net 0/2] net: sched: initialize struct tc_ife to fix kernel-infoleak Message-ID: References: <20251109091336.9277-1-vnranganath.20@gmail.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: <20251109091336.9277-1-vnranganath.20@gmail.com> On Sun, Nov 09, 2025 at 02:43:34PM +0530, Ranganath V N wrote: > This series addresses the uninitialization of the struct which has > 2 bytes of padding. And copying this uninitialized data to userspace > can leak info from kernel memory. > > This series ensures all members and padding are cleared prior to > begin copied. > > This change silences the KMSAN report and prevents potential information > leaks from the kernel memory. > > Signed-off-by: Ranganath V N Looks good to me too. Acked-by: Cong Wang Thanks!