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SubjectRe: BUG: KASAN: global-out-of-bounds in is_affected_midr_range_list on arm64
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On 7/8/2020 9:36 PM, Naresh Kamboju wrote:
> While running LTP cpuhotplug test on mainline 5.8.0-rc4 the kernel BUG noticed
> on arm64 Juno-r2 KASAN config enabled kernel.
>
> steps to reproduce:
> - boot KASAN enabled Juno-r2 device
> - cd /opt/ltp
> - ./runltp -f cpuhotplug
>
> metadata:
> git branch: master
> git repo: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
> git commit: 63e1968a2c87e9461e9694a96991935116e0cec7
> kernel-config:
> https://builds.tuxbuild.com/wc75HkrGrWgQCdI-l_1jUw/kernel.config
> vmlinux: https://builds.tuxbuild.com/wc75HkrGrWgQCdI-l_1jUw/vmlinux.xz
> system.map: https://builds.tuxbuild.com/wc75HkrGrWgQCdI-l_1jUw/System.map
>
> Test log:
> Name: cpuhotplug02
> Date: Thu Jul 9 00:09:24 UTC 2020
> Desc: What happens to a process when its CPU is offlined?
>

Just sent a tentative fix:

https://lore.kernel.org/linux-arm-kernel/20200709051345.14544-1-f.fainelli@gmail.com/
--
Florian

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