linux-kernel - Re: [PATCH net v2 1/1] net: stmmac: fix kernel panic due to NULL pointer dereference of xsk

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Message-Id: <162988620641.3256.15807737014421094725.git-patchwork-notify@kernel.org>
Date:   Wed, 25 Aug 2021 10:10:06 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Song Yoong Siang <yoong.siang.song@...el.com>
Cc:     ast@...nel.org, daniel@...earbox.net, davem@...emloft.net,
        kuba@...nel.org, hawk@...nel.org, john.fastabend@...il.com,
        peppe.cavallaro@...com, alexandre.torgue@...com,
        joabreu@...opsys.com, mcoquelin.stm32@...il.com,
        boon.leong.ong@...el.com, netdev@...r.kernel.org,
        bpf@...r.kernel.org, linux-stm32@...md-mailman.stormreply.com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        stable@...r.kernel.org
Subject: Re: [PATCH net v2 1/1] net: stmmac: fix kernel panic due to NULL pointer
 dereference of xsk_pool

Hello:

This patch was applied to netdev/net.git (refs/heads/master):

On Wed, 25 Aug 2021 08:55:29 +0800 you wrote:
> After free xsk_pool, there is possibility that napi polling is still
> running in the middle, thus causes a kernel crash due to kernel NULL
> pointer dereference of rx_q->xsk_pool and tx_q->xsk_pool.
> 
> Fix this by changing the XDP pool setup sequence to:
>  1. disable napi before free xsk_pool
>  2. enable napi after init xsk_pool
> 
> [...]

Here is the summary with links:
  - [net,v2,1/1] net: stmmac: fix kernel panic due to NULL pointer dereference of xsk_pool
    https://git.kernel.org/netdev/net/c/a6451192da26

You are awesome, thank you!
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