From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail.netfilter.org (mail.netfilter.org [217.70.190.124]) (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 D0E5339D6FB; Wed, 4 Mar 2026 11:09:49 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.70.190.124 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772622592; cv=none; b=ZABMBUFYTp7Jb6ZTZ2fwhvTgBLiDybPnSqAyT1ya4gt0NyKbT9PvVTAC8H9aFQybnPavk+nTdwDhu/0u0dlByu/UOYBaFRBux8tgjlAZbakY5fvD6I0+gi/vvhAkE9UVxTjejzbGQaCvVRGdqVBvQC4GMJjnGKJN2k98mbMTa8E= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772622592; c=relaxed/simple; bh=DZ5EpOMngdd36wqNDd4NjYzA6OxXRNV1rOnQgdUoZNk=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=H07vgqJp3enuIVgR0B/PpCJIoostp2VOXHfc9MTXQgU4A64Y3aJDZUGbTC46rQ7QVsnEOQShWfI4FQyP6fNOoodBd81bwjAJ8Ti3g/mUoUi7ckfMMoZWQbebZwTWyL/etslNQzZIhnKVONvJSEf1O59vM6s8WJ8qM3HxeiooEbc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=netfilter.org; spf=pass smtp.mailfrom=netfilter.org; dkim=pass (2048-bit key) header.d=netfilter.org header.i=@netfilter.org header.b=gRJaFpb9; arc=none smtp.client-ip=217.70.190.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=netfilter.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=netfilter.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=netfilter.org header.i=@netfilter.org header.b="gRJaFpb9" Received: from netfilter.org (mail-agni [217.70.190.124]) by mail.netfilter.org (Postfix) with UTF8SMTPSA id 8637B602C6; Wed, 4 Mar 2026 12:09:47 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=netfilter.org; s=2025; t=1772622587; bh=gt4atHiWzBjK0uoCYrFGwaAoutjL7AQKx2Z3OuME5BE=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=gRJaFpb9RgWm2G1Y+nAquiLopA9BIrWHjBcW7f1wyHewAneXWa+p64Kwzy2BcTCSm Cd1K+SWWUUl0EqR+CH4+FuDH3gaSTTB89xL2tStmyT8BMeaB2bnb/TWFlDA0D5j6kc ZI5WrcNgjKPyV6uleytjCWJjeJRpZ/82F4nNytdsUK7mRERGJIqlFFXoBoRUNs5/Z+ pNCKfU3h6UW5aoTJDUK97EqaABJOPpo9DOsMEB5QSRJItKru05tcTId8oq256VO1MK CqbZkthg5xt+5/lL9CwHKLqqIKWwAewajNfAcojvjUYFZUq/jV2uzjOtBN2Zvi9yaQ 8ale43xA9rXBQ== Date: Wed, 4 Mar 2026 12:09:44 +0100 From: Pablo Neira Ayuso To: Thorsten Leemhuis Cc: Jindrich Makovicka , Genes Lists , Greg KH , linux-kernel@vger.kernel.org, coreteam@netfilter.org, netfilter-devel@vger.kernel.org, stable@vger.kernel.org, regressions@lists.linux.dev, "Kris Karas (Bug Reporting)" Subject: Re: [REGRESSION] 6.19.4 stable netfilter / nftables [resolved] Message-ID: References: <45f03b0b-fe8f-4942-bad1-3fbde03d4be1@leemhuis.info> <143e1a402ad78dd7076516a6ceb637f378310b16.camel@sapience.com> <10537f2b74da2b8a5cb8dc939f723291db39ff84.camel@sapience.com> <2026022755-quail-graveyard-93e8@gregkh> <9d110d860c0c7e110d018ea53a7666eba275da20.camel@gmail.com> <75a4115f-e7f3-4316-b046-525fcd87cdef@leemhuis.info> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <75a4115f-e7f3-4316-b046-525fcd87cdef@leemhuis.info> On Wed, Mar 04, 2026 at 06:50:32AM +0100, Thorsten Leemhuis wrote: > On 3/3/26 23:03, Pablo Neira Ayuso wrote: > > > A new userspace release with this fix is required. > > But a new user space should never be required for a new kernel. Find a > few quotes from Linus on this below. And I noticed other people ran > into this, too, so it's not a corner case: > https://lore.kernel.org/all/aaeIDJigEVkDfrRg@chamomile/ > > So should this be reverted everywhere where this was applied? Or is > there some way to do what the commit wanted to do without breaking > userspace? Thanks for explaining. I kindly requested to revert in -stable: netfilter: nft_set_rbtree: validate open interval overlap which amplifies the userspace bug.