From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from vps0.lunn.ch (vps0.lunn.ch [156.67.10.101]) (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 41D0430FF1E for ; Thu, 28 May 2026 16:16:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=156.67.10.101 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779985017; cv=none; b=BVURtHJ5Vkd6WOKMxd7xtb+o60an4Oo70KUd6w5J8gmWnFjBA6Ue11KnLLcc8u0KlDybIL39yoiaNlRO+KiE0RXTkixXN2YZUxQcS1r6AxoYyBOl/3ZUh8xZhiUUPqoxAxcZi5JfgA1UvP6zrNFW0gH9Er3KRNGI6VYSBB15Ifs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779985017; c=relaxed/simple; bh=6G0LjKKwhjUZtoHv9YvauGYolfOeJ8y9VbVt0MgtrG0=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=hfJJPx7WcR089NRk+6AUmRyLn7jcYKFzIfAmgs06si0/9saez1fHvFKvMLG5UDfrBVZORTuz7ZoMCw7fXHMCtxI8RrA+5bJDY6U1pp3zPujPj8LmkpcFYtJzaxj+hYNupz50fmkgR/e4rwysmvEZg5y32wMQ9tHTkUPWR7UXwhQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=lunn.ch; spf=pass smtp.mailfrom=lunn.ch; dkim=pass (1024-bit key) header.d=lunn.ch header.i=@lunn.ch header.b=bvuYjXjY; arc=none smtp.client-ip=156.67.10.101 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=lunn.ch Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=lunn.ch Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=lunn.ch header.i=@lunn.ch header.b="bvuYjXjY" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lunn.ch; s=20171124; h=In-Reply-To:Content-Disposition:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:From:Sender:Reply-To:Subject: Date:Message-ID:To:Cc:MIME-Version:Content-Type:Content-Transfer-Encoding: Content-ID:Content-Description:Content-Disposition:In-Reply-To:References; bh=H5tUY8U5PV0fBWFi2GhCyQLhjYvlJikmN9of/I+Ir/k=; b=bvuYjXjYDSOmxiVQheRdIGOzAR +2nK8tKOIWKhXRcKcXEM/SJfJMokBcAykT9QRaGktwKTg2XDQvVbSo/ksE/SIFdMNxcvTXhkXiPwB lVlYQL2u5/W/74yHGfGqeTkoYpFaPrzSi/RvKM/91GIc7qkk5IxG3epJZsGGZHMZyIcQ=; Received: from andrew by vps0.lunn.ch with local (Exim 4.94.2) (envelope-from ) id 1wSdPh-004vV9-2Q; Thu, 28 May 2026 18:16:53 +0200 Date: Thu, 28 May 2026 18:16:53 +0200 From: Andrew Lunn To: Wade Sparks Cc: netdev@vger.kernel.org, security@kernel.org, Disclosures Subject: Re: Unidentified Fragnesia Variant with Public PoC Message-ID: <73b5b45c-08df-47db-b749-b4b7cd625b3f@lunn.ch> References: 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: On Thu, May 28, 2026 at 11:12:32AM -0400, Wade Sparks wrote: > Hello netdev team, > (cc: security@kernel.org) security@kernel.org is for embargoed reports. You posted this publicly, so it cannot be embargoed. Please don't waste the time of the people on security@kernel.org. > The original Fragnesia patch only addressed the coalesce path, leaving the > segmentation path independently exploitable. We confirmed the PoC works on the > latest Ubuntu kernel release as of 2026-05-27 (we are in the process of > re-testing against v7.0.10 of the kernel.org release). The variant is distinct > enough to warrant its own patch, as it operates in a different function with a > different trigger path that survives the existing fix. > > If there is an existing patch that apparently has not made it's way to Ubuntu > distributions, we'd greatly appreciate if you could flag so that we may > initiate the CVE assignment process with kernel.org CNA. netdev does not really care about downstream kernels. Please report any networking issues against Mainline, ideally net or net-next. https://www.kernel.org/doc/html/latest/process/maintainer-netdev.html Andrew