Re: [PATCH 0/3] Use new wrappers to copy userspace arrays

[Sean Christopherson]

On Fri, Dec 01, 2023, Christian Borntraeger wrote:
> 
> 
> Am 01.12.23 um 02:52 schrieb Sean Christopherson:
> > On Thu, 02 Nov 2023 19:15:23 +0100, Philipp Stanner wrote:
> > > Linus recently merged [1] the wrapper functions memdup_array_user() and
> > > vmemdup_array_user() in include/linux/string.h for Kernel v6.7
> > > 
> > > I am currently adding them to all places where (v)memdup_user() had been
> > > used to copy arrays.
> > > 
> > > The wrapper is different to the wrapped functions only in that it might
> > > return -EOVERFLOW. So this new error code might get pushed up to
> > > userspace. I hope this is fine.
> > > 
> > > [...]
> > 
> > Applied to kvm-x86 generic.  Claudio (or anyone else from s390), holler if
> > you want to take the s390 patch through the s390 tree.
> 
> I think this is fine via your tree.
> 
> Feel free to add
> Acked-by: Christian Borntraeger <borntraeger@xxxxxxxxxxxxx>
> to patch 2 if the commit id is not yet final.

Done, thanks much!  New hashes if anyone cares:

[1/3] KVM: x86: Harden copying of userspace-array against overflow
      https://github.com/kvm-x86/linux/commit/573cc0e5cf14
[2/3] KVM: s390: Harden copying of userspace-array against overflow
      https://github.com/kvm-x86/linux/commit/8c4976772d9b
[3/3] KVM: Harden copying of userspace-array against overflow
      https://github.com/kvm-x86/linux/commit/1f829359c8c3