* patches fix ftracetest hang on arm
@ 2017-12-11 3:04 Alex Shi
2017-12-12 8:25 ` Greg KH
0 siblings, 1 reply; 2+ messages in thread
From: Alex Shi @ 2017-12-11 3:04 UTC (permalink / raw)
To: stable; +Cc: lkft-maintainers, Russell King - ARM Linux
Hi All,
BUG if we attempt to return to userspace but the to-be-restored PSR
value keeps us in privileged mode (defeating an issue that ftracetest
found).
Fixing patches are following, apply top down on LTS *v4.14/4.9/4.4*
They are tested by lkft and kernelci build/boot, no regression found.
8bafae202c82 ARM: BUG if jumping to usermode address in kernel mode
3aaf33bebda8 ARM: avoid faulting on qemu
Thanks
Alex
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: patches fix ftracetest hang on arm
2017-12-11 3:04 patches fix ftracetest hang on arm Alex Shi
@ 2017-12-12 8:25 ` Greg KH
0 siblings, 0 replies; 2+ messages in thread
From: Greg KH @ 2017-12-12 8:25 UTC (permalink / raw)
To: Alex Shi; +Cc: stable, lkft-maintainers, Russell King - ARM Linux
On Mon, Dec 11, 2017 at 11:04:05AM +0800, Alex Shi wrote:
> Hi All,
>
> BUG if we attempt to return to userspace but the to-be-restored PSR
> value keeps us in privileged mode (defeating an issue that ftracetest
> found).
>
> Fixing patches are following, apply top down on LTS *v4.14/4.9/4.4*
> They are tested by lkft and kernelci build/boot, no regression found.
>
> 8bafae202c82 ARM: BUG if jumping to usermode address in kernel mode
> 3aaf33bebda8 ARM: avoid faulting on qemu
Thanks for these, now queued up.
greg k-h
^ permalink raw reply [flat|nested] 2+ messages in thread
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