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Message-ID: <20250210011755.55018-1-kuniyu@amazon.com>
Date: Mon, 10 Feb 2025 10:17:55 +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 4/8] arp: use RCU protection in arp_xmit()
From: Eric Dumazet <edumazet@...gle.com>
Date: Fri, 7 Feb 2025 13:58:36 +0000
> arp_xmit() can be called without RTNL or RCU protection.
>
> Use RCU protection to avoid potential UAF.
>
> Fixes: 29a26a568038 ("netfilter: Pass struct net into the netfilter hooks")
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@...zon.com>
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