netdev - Re: [PATCH net 5/8] openvswitch: use RCU protection in ovs_vport_cmd_fill

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Message-ID: <20250210012224.55427-1-kuniyu@amazon.com>
Date: Mon, 10 Feb 2025 10:22:24 +0900
From: Kuniyuki Iwashima <kuniyu@...zon.com>
To: <edumazet@...gle.com>
CC: <davem@...emloft.net>, <dsahern@...nel.org>, <eric.dumazet@...il.com>,
	<horms@...nel.org>, <kuba@...nel.org>, <kuniyu@...zon.com>,
	<netdev@...r.kernel.org>, <pabeni@...hat.com>
Subject: Re: [PATCH net 5/8] openvswitch: use RCU protection in ovs_vport_cmd_fill_info()

From: Eric Dumazet <edumazet@...gle.com>
Date: Fri,  7 Feb 2025 13:58:37 +0000
> ovs_vport_cmd_fill_info() can be called without RTNL or RCU.
> 
> Use RCU protection and dev_net_rcu() to avoid potential UAF.
> 
> Fixes: 9354d4520342 ("openvswitch: reliable interface indentification in port dumps")
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>

Reviewed-by: Kuniyuki Iwashima <kuniyu@...zon.com>