Re: [PATCH net v2] netlink: avoid hashing the network namespace pointer

[patchwork-bot+netdevbpf]

Hello:

This patch was applied to netdev/net.git (main)
by Paolo Abeni <pabeni@xxxxxxxxxx>:

On Wed,  7 Oct 2026 18:14:00 -0700 you wrote:
> The netlink rhashtable key includes a raw struct net pointer and a
> user-controlled port ID. Both /proc/net/netlink and socket diagnostics
> expose the table's bucket order. By binding and rebinding chosen
> NETLINK_USERSOCK port IDs, an unprivileged reader can distinguish equal
> buckets and recover the low bits of the Jenkins hash. Its 32-bit seed
> and the limited set of kernel-image slides can then be searched offline
> to recover the address of init_net.
> 
> [...]

Here is the summary with links:
  - [net,v2] netlink: avoid hashing the network namespace pointer
    https://git.kernel.org/netdev/net/c/f88bb3606e4b

You are awesome, thank you!
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