Re: Linux 5.15.103

From: Mathias Krause
Date: Tue Mar 28 2023 - 08:02:17 EST


On 17.03.23 09:04, Greg Kroah-Hartman wrote:
> I'm announcing the release of the 5.15.103 kernel.
>
> [...]
>
> Vitaly Kuznetsov (4):
> KVM: Optimize kvm_make_vcpus_request_mask() a bit
> KVM: Pre-allocate cpumasks for kvm_make_all_cpus_request_except()
> KVM: nVMX: Don't use Enlightened MSR Bitmap for L3
> KVM: VMX: Introduce vmx_msr_bitmap_l01_changed() helper
>

That list is missing commit 6470accc7ba9 ("KVM: x86: hyper-v: Avoid
calling kvm_make_vcpus_request_mask() with vcpu_mask==NULL") to fulfill
the prerequisite of "KVM: Optimize kvm_make_vcpus_request_mask() a bit".

Right now the kvm selftests trigger a kernel NULL deref for the hyperv
test, making the system hang.

Please consider applying commit 6470accc7ba9 for the next v5.15.x release.

Thanks,
Mathias