Hello:
This patch was applied to bpf/bpf.git (master)
by Daniel Borkmann <daniel@xxxxxxxxxxxxx>:
On Mon, 25 Apr 2022 17:37:45 +0200 you wrote:
> Fix a crash that happens if an Rx only socket is created first, then a
> second socket is created that is Tx only and bound to the same umem as
> the first socket and also the same netdev and queue_id together with the
> XDP_SHARED_UMEM flag. In this specific case, the tx_descs array page
> pool was not created by the first socket as it was an Rx only socket.
> When the second socket is bound it needs this tx_descs array of this
> shared page pool as it has a Tx component, but unfortunately it was
> never allocated, leading to a crash. Note that this array is only used
> for zero-copy drivers using the batched Tx APIs, currently only ice and
> i40e.
>
> [...]
Here is the summary with links:
- [bpf] xsk: fix possible crash when multiple sockets are created
https://git.kernel.org/bpf/bpf/c/ba3beec2ec1d
You are awesome, thank you!
--
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html
