netdev - Re: [PATCH net 0/3] vxlan: Fix NPDs when using nexthop objects

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Message-Id: 
 <175685821474.475224.8396576644651360908.git-patchwork-notify@kernel.org>
Date: Wed, 03 Sep 2025 00:10:14 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Ido Schimmel <idosch@...dia.com>
Cc: netdev@...r.kernel.org, davem@...emloft.net, kuba@...nel.org,
 pabeni@...hat.com, edumazet@...gle.com, andrew+netdev@...n.ch,
 horms@...nel.org, razor@...ckwall.org, petrm@...dia.com,
 mcremers@...udbear.nl
Subject: Re: [PATCH net 0/3] vxlan: Fix NPDs when using nexthop objects

Hello:

This series was applied to netdev/net.git (main)
by Jakub Kicinski <kuba@...nel.org>:

On Mon, 1 Sep 2025 09:50:32 +0300 you wrote:
> With FDB nexthop groups, VXLAN FDB entries do not necessarily point to a
> remote destination but rather to an FDB nexthop group. This means that
> first_remote_{rcu,rtnl}() can return NULL and a few places in the driver
> were not ready for that, resulting in NULL pointer dereferences.
> Patches #1-#2 fix these NPDs.
> 
> Note that vxlan_fdb_find_uc() still dereferences the remote returned by
> first_remote_rcu() without checking that it is not NULL, but this
> function is only invoked by a single driver which vetoes the creation of
> FDB nexthop groups. I will patch this in net-next to make the code less
> fragile.
> 
> [...]

Here is the summary with links:
  - [net,1/3] vxlan: Fix NPD when refreshing an FDB entry with a nexthop object
    https://git.kernel.org/netdev/net/c/6ead38147ebb
  - [net,2/3] vxlan: Fix NPD in {arp,neigh}_reduce() when using nexthop objects
    https://git.kernel.org/netdev/net/c/1f5d2fd1ca04
  - [net,3/3] selftests: net: Add a selftest for VXLAN with FDB nexthop groups
    https://git.kernel.org/netdev/net/c/2c9fb925c2cc

You are awesome, thank you!
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