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 B19A13D6682; Wed, 19 Aug 2026 08:11:04 +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=1787127082; cv=none; b=A9q/56vdivYw/xdM54oNtiPt6oufHjFswDdW/sWQjnyTPncxozOpyaAJF6euczlgw/5CLBdm/zkQVxwY0vN8uB+ssciHlSkSd0QNtcOXDkWboxljDnUGKAZK6drEi4DKdUuphThlLskTiy4N0q99QlFM99jKAZIcnu+HGyEo26w= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787127082; c=relaxed/simple; bh=VF8wk4DO3nDBthkgYFWg2WJwxHbTw8J1y0IaWlC8rdI=; h=Content-Type:MIME-Version:Subject:From:Message-Id:Date:References: In-Reply-To:To:Cc; b=izpNBx5mT4p2pYcRLXmMfoeoW97kwZnsC/rH0bxQW3lp8xk969J8LmPe2LGIb5+Wzkj4qzg0Uoll5D0hdlWzFwJHohX2DDVSeDkzvcGioOKlgBfLqxOjcPSKshulzZ59r5ZOJ8Ifyi5SEwOdAhBERfi09EllgYXJwODS0a0RLaE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=LKdiq+5I; 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="LKdiq+5I" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B2FFC1F000E9; Wed, 19 Aug 2026 08:11:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1787127061; bh=ZfX2dr5pD+KYvTUNAwivqli+kg4ObqGcu5E3bue+BTM=; h=Subject:From:Date:References:In-Reply-To:To:Cc; b=LKdiq+5ITa5RCkThfYFRrcoqn6zq4SbjdrIjr1KWoYXc8IKn/PgZB8rq7LaQ9J3ZB JwZM0IuEY7y4cUQRQRnxOpA0iwFxj+pJT8KdExVYU5R5MbKXXRSAty3ad0rfAHWtKb 7Rz2uBaIXn2DqgYyeNvB9HuWzv8uWjEBD17VcrmzZeaWL+sjCmk41GfET+WKxNjeK4 fUq3OcAcTp+3FgHWV5dGG0fhLovsNTj+YmtV03swIPMUUqGqsXf7OdZjC3YiODObGs zIZYezhX8pfxtzJ1d0ElYTSvNtixCqSI8SIRmRq2ViLxP5oPZJs1SjBXF5MiQgwMCt LdteV9Lev4jkA== Received: from [10.30.226.235] (localhost [IPv6:::1]) by aws-us-west-2-korg-oddjob-rhel9-1.codeaurora.org (Postfix) with ESMTP id 19912392720B; Wed, 19 Aug 2026 08:10:14 +0000 (UTC) Content-Type: text/plain; charset="utf-8" Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: Re: [PATCH net] ipv6: use RCU iterator to dump route exceptions From: patchwork-bot+netdevbpf@kernel.org Message-Id: <178712701263.2921663.3448660025445141729.git-patchwork-notify@kernel.org> Date: Wed, 19 Aug 2026 08:10:12 +0000 References: <20260815084651.69477-1-sigefriedhyy@gmail.com> In-Reply-To: <20260815084651.69477-1-sigefriedhyy@gmail.com> To: Yuyang Huang Cc: davem@davemloft.net, dsahern@kernel.org, edumazet@google.com, idosch@nvidia.com, kuba@kernel.org, pabeni@redhat.com, horms@kernel.org, sbrivio@redhat.com, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, stable@vger.kernel.org Hello: This patch was applied to netdev/net.git (main) by David S. Miller : On Sat, 15 Aug 2026 17:46:51 +0900 you wrote: > rt6_nh_dump_exceptions() uses hlist_for_each_entry() to iterate over > RCU-protected exception lists. The caller holds rcu_read_lock(), but does > not hold rt6_exception_lock, so rt6_insert_exception() can concurrently > add an entry with hlist_add_head_rcu(). > > KCSAN reports this race (irrelevant details omitted): > > [...] Here is the summary with links: - [net] ipv6: use RCU iterator to dump route exceptions https://git.kernel.org/netdev/net/c/564973a259ec You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html