[SRU focal/linux-hwe-5.8 0/4] CVE fixes for 5.8 kernels

[Thadeu Lima de Souza Cascardo]

[CVEs]
These are fixes that are only needed for 5.8 kernels (though currently that
is only azure-5.8), which are already pending or released for other
kernels.

[Test]
This has been built and booted as part of hwe-5.8 and azure-5.8.

The one I had a test for was CVE-2021-3612, and I can confirm I don't see a
crash anymore.

[Potential regression]
Two of the fixes affect KVM, so regressions would be observed on KVM guests
running on Azure instances. There is one for a Xilinx network device, so
any systems with that device could be impacted. Finally, the one that was
tested against affects the /dev/input/js* interface to some input devices.

Alexander Larkin (1):
  Input: joydev - prevent use of not validated data in JSIOCSBTNMAP
    ioctl

David Rientjes (1):
  KVM: SVM: Periodically schedule when unregistering regions on destroy

Esben Haabendal (1):
  net: ll_temac: Fix TX BD buffer overwrite

Nicholas Piggin (1):
  KVM: do not allow mapping valid but non-reference-counted pages

 arch/x86/kvm/svm/sev.c                      |  1 +
 drivers/input/joydev.c                      |  2 +-
 drivers/net/ethernet/xilinx/ll_temac_main.c |  2 +-
 virt/kvm/kvm_main.c                         | 19 +++++++++++++++++--
 4 files changed, 20 insertions(+), 4 deletions(-)

-- 
2.30.2