netdev - Re: [PATCH v3 net] net: bridge: annotate data-races around fdb->{updated,used}

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Message-ID: <20260108114121.GA615553@shredder>
Date: Thu, 8 Jan 2026 13:41:21 +0200
From: Ido Schimmel <idosch@...dia.com>
To: Eric Dumazet <edumazet@...gle.com>
Cc: "David S . Miller" <davem@...emloft.net>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Simon Horman <horms@...nel.org>, netdev@...r.kernel.org,
	eric.dumazet@...il.com,
	syzbot+bfab43087ad57222ce96@...kaller.appspotmail.com,
	Nikolay Aleksandrov <razor@...ckwall.org>
Subject: Re: [PATCH v3 net] net: bridge: annotate data-races around
 fdb->{updated,used}

On Thu, Jan 08, 2026 at 09:38:06AM +0000, Eric Dumazet wrote:
> fdb->updated and fdb->used are read and written locklessly.
> 
> Add READ_ONCE()/WRITE_ONCE() annotations.
> 
> Fixes: 31cbc39b6344 ("net: bridge: add option to allow activity notifications for any fdb entries")
> Reported-by: syzbot+bfab43087ad57222ce96@...kaller.appspotmail.com
> Closes: https://lore.kernel.org/netdev/695e3d74.050a0220.1c677c.035f.GAE@google.com/
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>
> Acked-by: Nikolay Aleksandrov <razor@...ckwall.org>
> Cc: Ido Schimmel <idosch@...dia.com>

Reviewed-by: Ido Schimmel <idosch@...dia.com>

Thanks!