netdev - Re: [PATCH net v2] ionic: fix kernel panic due to multi-buffer handling

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Date: Fri, 21 Jun 2024 10:40:28 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Taehee Yoo <ap420073@...il.com>
Cc: davem@...emloft.net, kuba@...nel.org, pabeni@...hat.com,
 edumazet@...gle.com, shannon.nelson@....com, brett.creeley@....com,
 drivers@...sando.io, netdev@...r.kernel.org, jacob.e.keller@...el.com
Subject: Re: [PATCH net v2] ionic: fix kernel panic due to multi-buffer handling

Hello:

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

On Thu, 20 Jun 2024 10:58:08 +0000 you wrote:
> Currently, the ionic_run_xdp() doesn't handle multi-buffer packets
> properly for XDP_TX and XDP_REDIRECT.
> When a jumbo frame is received, the ionic_run_xdp() first makes xdp
> frame with all necessary pages in the rx descriptor.
> And if the action is either XDP_TX or XDP_REDIRECT, it should unmap
> dma-mapping and reset page pointer to NULL for all pages, not only the
> first page.
> But it doesn't for SG pages. So, SG pages unexpectedly will be reused.
> It eventually causes kernel panic.
> 
> [...]

Here is the summary with links:
  - [net,v2] ionic: fix kernel panic due to multi-buffer handling
    https://git.kernel.org/netdev/net/c/e3f02f32a050

You are awesome, thank you!
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