netdev - Re: [PATCH net 03/16] ipv4: use RCU protection in ip_dst_mtu_maybe

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Message-ID: <20250131184750.92414-1-kuniyu@amazon.com>
Date: Fri, 31 Jan 2025 10:47:50 -0800
From: Kuniyuki Iwashima <kuniyu@...zon.com>
To: <edumazet@...gle.com>
CC: <davem@...emloft.net>, <eric.dumazet@...il.com>, <horms@...nel.org>,
	<kuba@...nel.org>, <kuniyu@...zon.com>, <netdev@...r.kernel.org>,
	<pabeni@...hat.com>
Subject: Re: [PATCH net 03/16] ipv4: use RCU protection in ip_dst_mtu_maybe_forward()

From: Eric Dumazet <edumazet@...gle.com>
Date: Fri, 31 Jan 2025 17:13:21 +0000
> ip_dst_mtu_maybe_forward() must use RCU protection to make
> sure the net structure it reads does not disappear.
> 
> Fixes: f87c10a8aa1e8 ("ipv4: introduce ip_dst_mtu_maybe_forward and protect forwarding path against pmtu spoofing")
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>

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