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 DE2EA19F121; Fri, 4 Sep 2026 00:51:06 +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=1788483067; cv=none; b=uvaI3CmwwNIndVqehdRi9J1JQdB+GXOk1DDqWLEyYm+eDBEjcedElbi97z3fOogEU373igfpo7SEQuTDEJk4NDd5F47lfFgox4PwiiHkb3rSXYFUHzSCkJbBnmxasd9QXZ/oi7dwuI5E1cXjEBVQxNs/13fuXoRZT1faANxdp4Q= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788483067; c=relaxed/simple; bh=ckwJPsucUqT+zhFydqh6KKuVu6WFZbLd0D6CbTlpOGg=; h=Content-Type:MIME-Version:Subject:From:Message-Id:Date:References: In-Reply-To:To:Cc; b=hq1cFMwzf270oBPYmI2bRELtSK6WZWsYCS3Zlz/+LXfVX+tCx9xIbWB/I4uHiJE/RLKVlIWZdinHBFIOlI/ASNqnoJJhDVsteekYjeYj6RIU0Zc+oPDxsZmMxmw5FgFxJ0keBES5xF581kyu3NFxqg5chTLZb8yehZ7kA+EIVWo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=m/0UbV/l; 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="m/0UbV/l" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7AEDF1F000E9; Fri, 4 Sep 2026 00:51:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1788483066; bh=r6eF0OFcFwV4YwtUVxvfEo8CvnRBDfkdLeuuZjej+mo=; h=Subject:From:Date:References:In-Reply-To:To:Cc; b=m/0UbV/lCSzfwVimf3j+JU4BSoKPcgOVDxfbbFTmb7EFuzvl1o+mNcTTprlY1cPvW 0CEDJn2OH90+McmlMgJrd48vlFNVjV+aXHScKLI8S1XGONUr/+jQuwgwjNPrJSPH1w o6EUoHoWGKv1MEQGdUYHzDfOPmBZw7aOOU8FZt8UoTjw1lxUKoqD3OQtStRN94YYPq 7COxvIIq8KIq7YfbqVRxpidHrxwsEmwMtFcvC8v545zHMIf78FkeEJr1FSWXCimmG2 Wt2paBx65jPB2fCnRgpPwuXhDlt7h5cXZ4HXYn1vX0ZJFj5UUHyjfzLThTb6YZvrGd 10u5cyTCKsYlA== Received: from [10.30.226.235] (localhost [IPv6:::1]) by aws-us-west-2-korg-oddjob-rhel9-1.codeaurora.org (Postfix) with ESMTP id D0A0C38119E3; Fri, 4 Sep 2026 00:50:08 +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] tunnels: Drop stale dst when building an ICMP error for PMTUD From: patchwork-bot+netdevbpf@kernel.org Message-Id: <178848300740.4094353.3141970410159062442.git-patchwork-notify@kernel.org> Date: Fri, 04 Sep 2026 00:50:07 +0000 References: <20260902190112.4126199-1-idosch@nvidia.com> In-Reply-To: <20260902190112.4126199-1-idosch@nvidia.com> To: Ido Schimmel Cc: netdev@vger.kernel.org, davem@davemloft.net, kuba@kernel.org, pabeni@redhat.com, edumazet@google.com, dsahern@kernel.org, horms@kernel.org, aconole@redhat.com, sbrivio@redhat.com, gnault@redhat.com, laikabcprice@gmail.com, aroslavdudkov622@gmail.com, rough.rock3059@datachamp.fr, stable@vger.kernel.org Hello: This patch was applied to netdev/net.git (main) by Jakub Kicinski : On Wed, 2 Sep 2026 22:01:12 +0300 you wrote: > Bridged UDP tunnels such as VXLAN and GENEVE build an ICMP error packet > around an overlay packet if the packet is going to exceed the underlay > path MTU. The ICMP error packet is then injected back into the Rx path > with the source and destination addresses swapped, so that it will be > delivered to the overlay source. > > If the overlay packet was routed to the UDP tunnel or locally generated, > then it is already carrying a valid dst entry and this entry is not > dropped when transforming the packet to an ICMP error packet. This > causes the IP layer to reuse the dst entry, leading to the ICMP error > packet being dropped or routed out of the UDP tunnel interface in case > of forwarding. > > [...] Here is the summary with links: - [net] tunnels: Drop stale dst when building an ICMP error for PMTUD https://git.kernel.org/netdev/net/c/b58d74963320 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html