Re: [PATCH net] dibs: loopback: validate offset and size in move_data()

[patchwork-bot+netdevbpf]

Hello:

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

On Tue,  7 Jul 2026 15:43:18 +0800 you wrote:
> The loopback move_data() performs a memcpy into the registered DMB
> without checking whether offset + size exceeds the DMB length.  Unlike
> real ISM hardware, which enforces memory region bounds natively, the
> software loopback has no such protection.
> 
> A peer-supplied out-of-bounds offset or oversized write would result in
> an OOB write past the allocated kernel buffer.  Add an explicit bounds
> check before the memcpy to reject such requests with -EINVAL.
> 
> [...]

Here is the summary with links:
  - [net] dibs: loopback: validate offset and size in move_data()
    https://git.kernel.org/netdev/net/c/78237e3c0720

You are awesome, thank you!
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