From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id CA35835C195 for ; Thu, 12 Feb 2026 13:39:50 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770903590; cv=none; b=N5zP5YlYV6d2kQKXX3SOAizFr8GR812kUKrD08azF+4wO5QyNkwbbUWlc2Qbvu01YycEiXSJJNI59EsQ7td9XN5pkSxPl6ebdtCxjPxK9PWQvw5GRwQqtyV5URAFKPHSyAsK4VOIZm25wuzbgILZrAykdWlchRSNIn5QUxPqI6A= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770903590; c=relaxed/simple; bh=GhP2JH8hv0QUuMt7s8iCgKyAUNoOmckDel9CKid1yAM=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=TO8UldawzIF8RxdtNn3LoMT7HxmEmjBhF+N43IBC3BNVpC0hGBcxAiakHG+7o4H7/mKAuT0yMY1yb+GYowIRL7bM5507xxyvNQ+tynvX9aSk7Jg7je8oeBDB1/kobSFfQtH25s++55cvMz+tv5MXzIhWgMTnwIPrzoMAOn5QcEo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=rblpKQRE; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="rblpKQRE" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D9D28C4CEF7; Thu, 12 Feb 2026 13:39:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1770903590; bh=GhP2JH8hv0QUuMt7s8iCgKyAUNoOmckDel9CKid1yAM=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=rblpKQREppu1Ecof+VBy8uLpwjJ2ZAw+lUr0kVBhuIpmCJ7i2syVz8PDRUWhQ33Rx WdfbHeInMHxIZmdzFRfcG5LrRnYlcXJGgfojyx0rO/ub6EucsMSlyswEk5jtyDRlxX bcuU5zVWCZIwm4hrVRpvtgzYUbkoqEQvftEsoVCiID7IAx+Nv0IJPm9NdJASU2E7lo B9Mfg9l7ZODxnGRKvxrAQ+LQkBacF+UDKNUHGYoFZxDpSiTrOwtZ6J1dYzFso7q2jD QIC4IYCgh8bEf4WgL6eI012hcNaUCLUQWC+HVjOWr2CW3wXLigiOA1rXdw+AYHpkIf IQf02OMIfMrQg== Date: Thu, 12 Feb 2026 13:39:46 +0000 From: Simon Horman To: Jeremy Kerr Cc: "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Matt Johnston , netdev@vger.kernel.org Subject: Re: [PATCH net] net: mctp: ensure our nlmsg responses are initialised Message-ID: References: <20260209-dev-mctp-nlmsg-v1-1-f1e30c346a43@codeconstruct.com.au> Precedence: bulk X-Mailing-List: netdev@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: <20260209-dev-mctp-nlmsg-v1-1-f1e30c346a43@codeconstruct.com.au> On Mon, Feb 09, 2026 at 03:27:33PM +0800, Jeremy Kerr wrote: > Syed Faraz Abrar (@farazsth98) from Zellic, and Pumpkin (@u1f383) from > DEVCORE Research Team working with Trend Micro Zero Day Initiative > report that a RTM_GETNEIGH will return uninitalised data in the pad > bytes of the ndmsg data. > > Ensure we're initialising the netlink data to zero, in the link, addr > and neigh response messages. > > Fixes: 831119f88781 ("mctp: Add neighbour netlink interface") > Fixes: 06d2f4c583a7 ("mctp: Add netlink route management") > Fixes: 583be982d934 ("mctp: Add device handling and netlink interface") > Signed-off-by: Jeremy Kerr Reviewed-by: Simon Horman