On 08.04.20 08:40, Sean Christopherson wrote:
> Two fixes for what are effectively the same bug. The binary search used
> for memslot lookup doesn't check the resolved index and can access memory
> beyond the end of the memslot array.
>
> I split the s390 specific change to a separate patch because it's subtly
> different, and to simplify backporting. The KVM wide fix can be applied
> to stable trees as is, but AFAICT the s390 change would need to be paired
> with the !used_slots check from commit 774a964ef56 ("KVM: Fix out of range
> accesses to memslots"). This is why I tagged only the KVM wide patch for
> stable.
You can specify dependencies like
see
Documentation/process/stable-kernel-rules.rst
-----------snip---------------
Additionally, some patches submitted via :ref:`option_1` may have additional
patch prerequisites which can be cherry-picked. This can be specified in the
following format in the sign-off area:
.. code-block:: none
Cc: <stable@xxxxxxxxxxxxxxx> # 3.3.x: a1f84a3: sched: Check for idle
Cc: <stable@xxxxxxxxxxxxxxx> # 3.3.x: 1b9508f: sched: Rate-limit newidle
Cc: <stable@xxxxxxxxxxxxxxx> # 3.3.x: fd21073: sched: Fix affinity logic
Cc: <stable@xxxxxxxxxxxxxxx> # 3.3.x
Signed-off-by: Ingo Molnar <mingo@xxxxxxx>
The tag sequence has the meaning of:
.. code-block:: none
git cherry-pick a1f84a3
git cherry-pick 1b9508f
git cherry-pick fd21073
git cherry-pick <this commit>
-----------snip---------------
