From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 43A19C433F5 for ; Sat, 26 Mar 2022 10:18:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232433AbiCZKUH (ORCPT ); Sat, 26 Mar 2022 06:20:07 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48998 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232395AbiCZKUA (ORCPT ); Sat, 26 Mar 2022 06:20:00 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 035B6B95; Sat, 26 Mar 2022 03:18:10 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 1E48B60AB4; Sat, 26 Mar 2022 10:18:10 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 152A4C2BBE4; Sat, 26 Mar 2022 10:18:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1648289889; bh=OZH7g2IpG6pK2wMxM9iGM7s18WiIbcFEqwaQDkLIJMw=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=A+4daBoM17fEB6UEwD338UFvlZtz7aDf+AyiXnXrtUx6xSXqSS0R4dTMQwLz90cus A73pJA9vstoHKNfEhOkhMi9oWky6N2WTDtcMnIQlhfAvp5vJghfoyxtHiYNKw1b8q+ LjNxfFhgWkoAyHZ5HdynxTinUpt36awiPZ55DYCo= Date: Sat, 26 Mar 2022 11:18:06 +0100 From: Greg Kroah-Hartman To: Linus Torvalds Cc: Linux Kernel Mailing List , stable , Halil Pasic , Christoph Hellwig Subject: Re: [PATCH 5.10 11/38] swiotlb: rework "fix info leak with DMA_FROM_DEVICE" Message-ID: References: <20220325150419.757836392@linuxfoundation.org> <20220325150420.085364078@linuxfoundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Mar 25, 2022 at 10:08:27AM -0700, Linus Torvalds wrote: > On Fri, Mar 25, 2022 at 8:09 AM Greg Kroah-Hartman > wrote: > > > > From: Halil Pasic > > > > commit aa6f8dcbab473f3a3c7454b74caa46d36cdc5d13 upstream. > > This one causes a regression on at least some wireless drivers > (ath9k). There's some active discussion about it, maybe it gets > reverted, maybe there are other options. > > There's an ath9k patch that fixes the problem, so if this patch goes > into the stable tree the ath9k fix will follow. > > But it might be a good idea to simply hold off on this patch a bit, > because that ath9k patch hasn't actually landed yet, there's some > discussion about it all, and it's not clear that other drivers might > not have the same issue. > > So I'm not NAK'ing this patch from stable, but I also don't think it's > timing-critical, and it might be a good idea to delay it for a week or > two to both wait for the ath9k patch and to see if something else > comes up. Yes, I've been watching that thread. This change is already in 5.15 and 5.16 kernels, and does solve one known security issue, so it's a tough call. I'll drop them from 5.10 and 5.4 for now and save them to see how it plays out... thanks, greg k-h