linux-kernel - Re: [PATCH net] enetc: Fix illegal access when reading affinity

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Date:   Sun, 19 Sep 2021 11:20:09 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Claudiu Manoil <claudiu.manoil@....com>
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        davem@...emloft.net, kuba@...nel.org
Subject: Re: [PATCH net] enetc: Fix illegal access when reading affinity_hint

Hello:

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

On Fri, 17 Sep 2021 13:22:05 +0300 you wrote:
> irq_set_affinity_hit() stores a reference to the cpumask_t
> parameter in the irq descriptor, and that reference can be
> accessed later from irq_affinity_hint_proc_show(). Since
> the cpu_mask parameter passed to irq_set_affinity_hit() has
> only temporary storage (it's on the stack memory), later
> accesses to it are illegal. Thus reads from the corresponding
> procfs affinity_hint file can result in paging request oops.
> 
> [...]

Here is the summary with links:
  - [net] enetc: Fix illegal access when reading affinity_hint
    https://git.kernel.org/netdev/net/c/7237a494decf

You are awesome, thank you!
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