From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from Chamillionaire.breakpoint.cc (Chamillionaire.breakpoint.cc [91.216.245.30]) (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 4A14B28725F for ; Sun, 5 Oct 2025 11:43:52 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=91.216.245.30 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1759664634; cv=none; b=dBfdaUnimCFbk6BTYOebaVNsRztblLOj7sHNU/0rXvX1Aor0gPXOWj1m+A1Y9Hc1RjV21V7aUbpVFnoCB8D8iNWPUcEeGQ7EgOJXuGjoZUngy0PVM8PRNcW1pOs9ma0pWOzTomgF8JA0CefSwkTMX/QC1BoYnCH5Vle6HmGo4LM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1759664634; c=relaxed/simple; bh=2ZOg0ls6d6HtSbqEDxcWSZngBBRmVBZrTny8BH0aQ3E=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=NVUR+14WN48R69iMZhKka5TvYLeMJupdLHyk0RhY+DgNrvCezGpoCmMvFG6G99BWGxxixISkwWZhlpnippKVTrvRIQVNOsI3lN2JlbylMd83zlbXH1TQM3lAFD8Jq04XVotFWp6U6/gCgvje7PkSqPMzrRenpa6ZqGgL7Pp8JRU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=strlen.de; spf=pass smtp.mailfrom=strlen.de; arc=none smtp.client-ip=91.216.245.30 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=strlen.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=strlen.de Received: by Chamillionaire.breakpoint.cc (Postfix, from userid 1003) id EE4EE604FB; Sun, 5 Oct 2025 13:43:49 +0200 (CEST) Date: Sun, 5 Oct 2025 13:43:49 +0200 From: Florian Westphal To: Fernando Fernandez Mancera Cc: netfilter-devel@vger.kernel.org, coreteam@netfilter.org, pablo@netfilter.org, Georg Pfuetzenreuter Subject: Re: [PATCH nf] netfilter: nf_tables: validate objref and objrefmap expressions Message-ID: References: <20251004230424.3611-1-fmancera@suse.de> Precedence: bulk X-Mailing-List: netfilter-devel@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: <20251004230424.3611-1-fmancera@suse.de> Fernando Fernandez Mancera wrote: > Referencing a synproxy stateful object can cause a kernel crash due to > its usage on the OUTPUT hook. See the following trace: I edited this slightly to mention the recursion and applied this patch to nf:testing. Let me know if I messed anything up. I did not alter the actual code changes; patch LGTM.