Hello:

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

On Fri, 29 Nov 2024 13:25:19 -0800 you wrote:

From: Cong Wang <redacted>

Currently rtnl_link_get_net_ifla() gets called twice when we create
peer devices, once in rtnl_add_peer_net() and once in each ->newlink()
implementation.

This looks safer, however, it leads to a classic Time-of-Check to
Time-of-Use (TOCTOU) bug since IFLA_NET_NS_PID is very dynamic. And
because of the lack of checking error pointer of the second call, it
also leads to a kernel crash as reported by syzbot.

[...]

Here is the summary with links:
  - [net,v2] rtnetlink: fix double call of rtnl_link_get_net_ifla()
    https://git.kernel.org/netdev/net/c/48327566769a

You are awesome, thank you!
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