Re: [PATCH net-next] ip_tunnel: harden copying IP tunnel params to userspace

From: patchwork-bot+netdevbpf
Date: Mon Apr 08 2024 - 06:10:55 EST


Hello:

This patch was applied to netdev/net-next.git (main)
by David S. Miller <davem@xxxxxxxxxxxxx>:

On Thu, 4 Apr 2024 18:03:02 +0200 you wrote:
> Structures which are about to be copied to userspace shouldn't have
> uninitialized fields or paddings.
> memset() the whole &ip_tunnel_parm in ip_tunnel_parm_to_user() before
> filling it with the kernel data. The compilers will hopefully combine
> writes to it.
>
> Fixes: 117aef12a7b1 ("ip_tunnel: use a separate struct to store tunnel params in the kernel")
> Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
> Closes: https://lore.kernel.org/netdev/5f63dd25-de94-4ca3-84e6-14095953db13@moroto.mountain
> Signed-off-by: Alexander Lobakin <aleksander.lobakin@xxxxxxxxx>
>
> [...]

Here is the summary with links:
- [net-next] ip_tunnel: harden copying IP tunnel params to userspace
https://git.kernel.org/netdev/net-next/c/5a66cda52d7d

You are awesome, thank you!
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