From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mta0.migadu.com (out-130.mta0.migadu.com [91.218.175.130]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C89672DF3F2 for ; Thu, 20 Aug 2026 09:09:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=91.218.175.130 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787216965; cv=none; b=HNt8SNCf4++L5DHFZIr2sG++bX44ND+x6Peb9dBUG1ItpkJB+cp6sSFL5T1iYwWyeGjIkndnx4mARsu/H4+qYl4cMA8ozb2Tm/EkO0BWqoLObQRNy3V+HKsvxAYSdaXhKX17JvpSvwIFmNE8UKUM7Ypu9bxLrW3ueYLOYQYcuPM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787216965; c=relaxed/simple; bh=Cupuo0Pa3NQdExMqql7ynHhfJ3wuMywX5oHkv98MmAk=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=Ua/0WDU9gatN470U/5pbel9plJbU4629pVUxB3KsNWX9XOATvXXoFDD83PBNh1wGjRK7653mTKfITGgUQLfRHZGYnZiMQKM9lJ31l56pulD/Il5bR9e3usJIjxy6N2TjKEcwSshQrRKiX4633PAkzauuAkLSuwvNVtFvHBsv5JU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=Rkchv7hG; arc=none smtp.client-ip=91.218.175.130 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="Rkchv7hG" X-Envelope-To: linux-kernel@vger.kernel.org DKIM-Signature: a=rsa-sha256; bh=Cupuo0Pa3NQdExMqql7ynHhfJ3wuMywX5oHkv98MmAk=; c=simple/simple; d=linux.dev; h=from:to:subject:date:message-id:mime-version:content-type; s=key1; t=1787216961; v=1; x=1787821761; b=Rkchv7hGD1XOVqDtbj41Bz3QndRHNSkZG3yUmyERTjaztEdWlrwQOWDaOWGDB2gGmHGbjA79 UWuUJ5Fw6LRvxUywq4nzBMpZN9c8tXkne5EeOLYU9QfIpSKY1qW8dXIsxnOu5ypTrJ2fWs/XV6H 5aX9VNlH10F4tk2wxM80Oqe8= X-Envelope-To: linux-kernel@vger.kernel.org Received: from fedora (203.175.12.241) by smtp.migadu.com with ESMTPS id 9f8cf05874ae049c; Thu, 20 Aug 2026 09:09:11 +0000 X-Mizu-Trace-ID: 9f8cf05874ae049c X-Migadu-Flow: FLOW_OUT Date: Thu, 20 Aug 2026 17:09:04 +0800 From: Hangbin Liu To: Jay Vosburgh , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, Hangbin Liu Subject: Re: [PATCH 0/2] bonding: 3ad: fix 2 RCU issues in ad_mux_machine() Message-ID: References: <20260817-bond_rcu-v1-0-acf067cf45fe@kylinos.cn> Precedence: bulk X-Mailing-List: linux-kernel@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: <20260817-bond_rcu-v1-0-acf067cf45fe@kylinos.cn> Hi, On Mon, Aug 17, 2026 at 04:32:35PM +0800, Hangbin Liu wrote: > This series addresses a NULL pointer dereference in ad_mux_machine() > when ad_port_selection_logic() detaches a port from its aggregator > but does not assign a replacement. > > Patch 1 adds an early null aggregator check in ad_mux_machine() to > prevent the oops. Patch 2 is a minor RCU fix that uses RCU_INIT_POINTER() > when initializing port->aggregator to NULL. Please ignore this patch set. I just got back to upstream after a few months' leave and didn't catch up with the new policy before sending this series. The first patch is only theoretical and has no reproducer. The second patch is a NOP, as Eric said. So let's drop this patch set. Thanks Hangbin