Thread (5 messages) 5 messages, 4 authors, 2025-05-18

Re: [PATCH net] bridge: netfilter: Fix forwarding of fragmented packets

From: patchwork-bot+netdevbpf@kernel.org
Date: 2025-05-16 23:09:56
Also in: bridge

Hello:

This patch was applied to netdev/net.git (main)
by Jakub Kicinski [off-list ref]:

On Thu, 15 May 2025 11:48:48 +0300 you wrote:
When netfilter defrag hooks are loaded (due to the presence of conntrack
rules, for example), fragmented packets entering the bridge will be
defragged by the bridge's pre-routing hook (br_nf_pre_routing() ->
ipv4_conntrack_defrag()).

Later on, in the bridge's post-routing hook, the defragged packet will
be fragmented again. If the size of the largest fragment is larger than
what the kernel has determined as the destination MTU (using
ip_skb_dst_mtu()), the defragged packet will be dropped.

[...]
Here is the summary with links:
  - [net] bridge: netfilter: Fix forwarding of fragmented packets
    https://git.kernel.org/netdev/net/c/91b6dbced0ef

You are awesome, thank you!
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