On Wed, Dec 05, 2018 at 08:00:20PM +0100, Borislav Petkov wrote:
> On Wed, Dec 05, 2018 at 06:26:24PM +0200, Jari Ruusu wrote:
> > That same race appears to be present in older kernel branches also.
> > The context is sligthly different, so the patch for 4.14 does not
> > apply cleanly to older
On Wed, Dec 05, 2018 at 08:00:20PM +0100, Borislav Petkov wrote:
> On Wed, Dec 05, 2018 at 06:26:24PM +0200, Jari Ruusu wrote:
> > That same race appears to be present in older kernel branches also.
> > The context is sligthly different, so the patch for 4.14 does not
> > apply cleanly to older
On Wed, Dec 05, 2018 at 06:26:24PM +0200, Jari Ruusu wrote:
> That same race appears to be present in older kernel branches also.
> The context is sligthly different, so the patch for 4.14 does not
> apply cleanly to older kernels. For 4.9 branch, this edit works:
You could take the upstream one,
On Wed, Dec 05, 2018 at 06:26:24PM +0200, Jari Ruusu wrote:
> That same race appears to be present in older kernel branches also.
> The context is sligthly different, so the patch for 4.14 does not
> apply cleanly to older kernels. For 4.9 branch, this edit works:
You could take the upstream one,
Greg Kroah-Hartman wrote:
> commit 68239654acafe6aad5a3c1dc7237e60accfebc03 upstream.
>
> The sequence
>
> fpu->initialized = 1; /* step A */
> preempt_disable();/* step B */
> fpu__restore(fpu);
> preempt_enable();
>
> in __fpu__restore_sig() is racy in regard to a
Greg Kroah-Hartman wrote:
> commit 68239654acafe6aad5a3c1dc7237e60accfebc03 upstream.
>
> The sequence
>
> fpu->initialized = 1; /* step A */
> preempt_disable();/* step B */
> fpu__restore(fpu);
> preempt_enable();
>
> in __fpu__restore_sig() is racy in regard to a
4.14-stable review patch. If anyone has any objections, please let me know.
--
From: Sebastian Andrzej Siewior
commit 68239654acafe6aad5a3c1dc7237e60accfebc03 upstream.
The sequence
fpu->initialized = 1; /* step A */
preempt_disable();/* step B */
4.14-stable review patch. If anyone has any objections, please let me know.
--
From: Sebastian Andrzej Siewior
commit 68239654acafe6aad5a3c1dc7237e60accfebc03 upstream.
The sequence
fpu->initialized = 1; /* step A */
preempt_disable();/* step B */
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