From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 B801634041B; Thu, 6 Aug 2026 00:20:49 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785975652; cv=none; b=bo83tYqKZmOJ2mqXJ8rJRUXaRZL4KwQC5wSr2ZAPgpCcGyamBAFTX1rvtDfM5ZwgecokIjZjCrcgbBDtPJ7s6tFE2bK8H3gUyDscnLMmz2TqxZxh4ZQeDOb32QWngoAWai80/MpYr0WTEHcbh81a2kxOdRUNPJ17pQWNZOUb7uQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785975652; c=relaxed/simple; bh=n04CMGwp6tEBl8c8aByqFwlkxfDsn2TwSXbaFfMK9tc=; h=Content-Type:MIME-Version:Subject:From:Message-Id:Date:References: In-Reply-To:To:Cc; b=FSCvWK3yokSc2RSxFRorcpYIVAf3+KfwewVSXddqWZ1MEwmgznH31GEGwylME6VvfvFQTnSnuQcW8Vn2gI4qzKeSRu6wazNnrDwhiK1J7fxcAN+lm5iT16JX/5FjwsOtP+qLTGaOuxevPfYN/IenUCvH4pNzl90YNcMQP2Xs2XA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=dQH5gZdF; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="dQH5gZdF" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E4E301F00A3A; Thu, 6 Aug 2026 00:20:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1785975648; bh=wh4J+Bc28JG16+2tCsVeZ0u9k3JKqG5SRh6FCAyfgTo=; h=Subject:From:Date:References:In-Reply-To:To:Cc; b=dQH5gZdF+JQ/BELyK2ZxyxKCrSv/uqnJccAQlC8lZKBHLZjRa6K9ACn7Fr7vcSa6t +YS7zRHlh8HfW2yskJbcsA8Azq8oScPKcUP84od8tmGu11Pwc4imbj/Kw5S2QThwEq 5IEdqfmPE4vuVM6MUGEnP9zpgxRbRolXKENdEa5ICgnqCG1sN8+7OJ6noO7ZNS+8lK +1FGX/Byqa8gwjA5nevtRgE0mPAfQuwl/Y3e2OUqgDX6DskMSG8JVufbOT2n4qkAfm myJ5ORrkR+D3bEQ7L/H3RnommTy6GV2GUfdztlkV3HwRk7B/9nMkQpWZoeTl1D5p00 8QkE9TBHxehJw== Received: from [10.30.226.235] (localhost [IPv6:::1]) by aws-us-west-2-korg-oddjob-rhel9-1.codeaurora.org (Postfix) with ESMTP id D09A8392FFD8; Thu, 6 Aug 2026 00:20:09 +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 net] netfilter: nf_flow_table: drop existing skb dst before skb_dst_set_noref() From: patchwork-bot+netdevbpf@kernel.org Message-Id: <178597560839.575509.1356511922096738928.git-patchwork-notify@kernel.org> Date: Thu, 06 Aug 2026 00:20:08 +0000 References: <20260804093328.1831847-1-edumazet@google.com> In-Reply-To: <20260804093328.1831847-1-edumazet@google.com> To: Eric Dumazet Cc: davem@davemloft.net, kuba@kernel.org, pabeni@redhat.com, pablo@netfilter.org, fw@strlen.de, netdev@vger.kernel.org, netfilter-devel@vger.kernel.org, coreteam@netfilter.org, eric.dumazet@gmail.com, syzbot+76d4e3a055aec3b007ec@syzkaller.appspotmail.com Hello: This patch was applied to netdev/net.git (main) by Jakub Kicinski : On Tue, 4 Aug 2026 09:33:28 +0000 you wrote: > Incoming skbs passing through netfilter flowtable offload hooks (or XFRM > offload path) might already carry a ref-counted dst_entry assigned during > earlier RX or routing steps. > > Calling skb_dst_set_noref() when skb already holds a ref-counted dst > overwrites skb->_skb_refdst, leaking the previous dst_entry reference > count and triggering a DEBUG_NET_WARN_ON_ONCE assertion in > skb_dst_check_unset(): > > [...] Here is the summary with links: - [net] netfilter: nf_flow_table: drop existing skb dst before skb_dst_set_noref() https://git.kernel.org/netdev/net/c/8aecf0bbcc72 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html