[PATCH v3] arm64: paravirt: Use RCU read locks to guard stolen_time

Will Deacon will at kernel.org
Tue May 17 07:04:44 PDT 2022


On Fri, 13 May 2022 10:46:54 -0700, Elliot Berman wrote:
> From: Prakruthi Deepak Heragu <quic_pheragu at quicinc.com>
> 
> During hotplug, the stolen time data structure is unmapped and memset.
> There is a possibility of the timer IRQ being triggered before memset
> and stolen time is getting updated as part of this timer IRQ handler. This
> causes the below crash in timer handler -
> 
> [...]

Applied to arm64 (for-next/fixes), thanks!

[1/1] arm64: paravirt: Use RCU read locks to guard stolen_time
      https://git.kernel.org/arm64/c/19bef63f951e

Cheers,
-- 
Will

https://fixes.arm64.dev
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