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 489A43CE481; Thu, 5 Mar 2026 16:10:32 +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=1772727032; cv=none; b=UIMHvglgaQBE0290VWWqb32wFoIzgvxUtTn1Z/nGf6IHVgVtRf6VBkQCCfpQBnPWftWDuLP42uV0Osp9W/U4GbMGHSRsAskvnhM0lApVo0Bz5hOsuxvkbeVwZLssNMoCVUKOohgybbURTF81yoIZzRfKQYMjnomsH2bvy2XlWF0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772727032; c=relaxed/simple; bh=JbkmzA5NT9w481WQQZ9L9xGW0U2u7zXu0ubWo2eH7ys=; h=Content-Type:MIME-Version:Subject:From:Message-Id:Date:References: In-Reply-To:To:Cc; b=NB+FUbJ53BvTTrbR0twjISstRscQLRrZ3zJQTZo8rfWwesKf3+WTZ2LnbOdGn4NpG3AuhSRpvcJSln0mjsYv3fqOtutKX8GgbXvMjRVJjN7BlauFGwNqBNrZMo/m0QsKsrwIU8XwA+6BaQIRIfAiDiDztvR/Y258xjBQ46SMSF8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=YnzfeAhK; 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="YnzfeAhK" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 01279C2BC87; Thu, 5 Mar 2026 16:10:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1772727032; bh=JbkmzA5NT9w481WQQZ9L9xGW0U2u7zXu0ubWo2eH7ys=; h=Subject:From:Date:References:In-Reply-To:To:Cc:From; b=YnzfeAhKgKqi4R76z34Xc8KyKzRfL2ehp7SFrgFlKZ6HAZR92RBPjFTgjhIhiysmC +prNjc0KIu2yYV3+SWfIMfVzLtPk4+gWBNxHOHTqjNa8qehpAHuyjv8itwpM/FycmF HokPk+m0kgVYvNFlGrTrgnsltiYiLyrToZQvwnX8Rl/zwLWSlpy/whvR1NdX/ppLv+ dC5PgSg6GR2Bdx/ZqRet1uPrmNfELT9fgvgB2QwM/STGZT1wH0AmsFOp3z1BkBauZn Mg3GdDUufFsmyV+Z7Rb1V0VvDir8yYhrDfNR3OCRAv5WKG0KVPuy0k4QUH3Te5GNOH ivfh9M1E906Mg== Received: from [10.30.226.235] (localhost [IPv6:::1]) by aws-us-west-2-korg-oddjob-rhel9-1.codeaurora.org (Postfix) with ESMTP id 3FE603808200; Thu, 5 Mar 2026 16:10:33 +0000 (UTC) Content-Type: text/plain; charset="utf-8" Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: Re: [PATCH 1/2 net v3] net: bridge: fix nd_tbl NULL dereference when IPv6 is disabled From: patchwork-bot+netdevbpf@kernel.org Message-Id: <177272703204.3188128.4802292927759859112.git-patchwork-notify@kernel.org> Date: Thu, 05 Mar 2026 16:10:32 +0000 References: <20260304120357.9778-1-fmancera@suse.de> In-Reply-To: <20260304120357.9778-1-fmancera@suse.de> To: Fernando Fernandez Mancera Cc: netdev@vger.kernel.org, bridge@lists.linux.dev, roopa@cumulusnetworks.com, sdf@fomichev.me, petrm@nvidia.com, horms@kernel.org, idosch@nvidia.com, razor@blackwall.org, pabeni@redhat.com, kuba@kernel.org, edumazet@google.com, davem@davemloft.net, andrew+netdev@lunn.ch, gurucp2005@gmail.com Hello: This series was applied to netdev/net.git (main) by Jakub Kicinski : On Wed, 4 Mar 2026 13:03:56 +0100 you wrote: > When booting with the 'ipv6.disable=1' parameter, the nd_tbl is never > initialized because inet6_init() exits before ndisc_init() is called > which initializes it. Then, if neigh_suppress is enabled and an ICMPv6 > Neighbor Discovery packet reaches the bridge, br_do_suppress_nd() will > dereference ipv6_stub->nd_tbl which is NULL, passing it to > neigh_lookup(). This causes a kernel NULL pointer dereference. > > [...] Here is the summary with links: - [1/2,net,v3] net: bridge: fix nd_tbl NULL dereference when IPv6 is disabled https://git.kernel.org/netdev/net/c/e5e890630533 - [2/2,net,v3] net: vxlan: fix nd_tbl NULL dereference when IPv6 is disabled https://git.kernel.org/netdev/net/c/168ff39e4758 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html