Linux 5.15.48

[Greg Kroah-Hartman]

I'm announcing the release of the 5.15.48 kernel.

All users of the 5.15 kernel series must upgrade.

The updated 5.15.y git tree can be found at:
	git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git linux-5.15.y
and can be browsed at the normal kernel.org git web browser:
	https://git.kernel.org/?p=linux/kernel/git/stable/linux-stable.git;a=summary

thanks,

greg k-h

------------

 Documentation/ABI/testing/sysfs-devices-system-cpu              |    1 
 Documentation/admin-guide/hw-vuln/index.rst                     |    1 
 Documentation/admin-guide/hw-vuln/processor_mmio_stale_data.rst |  246 ++++++++++
 Documentation/admin-guide/kernel-parameters.txt                 |   36 +
 Makefile                                                        |    2 
 arch/x86/include/asm/cpufeatures.h                              |    1 
 arch/x86/include/asm/msr-index.h                                |   25 +
 arch/x86/include/asm/nospec-branch.h                            |    2 
 arch/x86/kernel/cpu/bugs.c                                      |  235 ++++++++-
 arch/x86/kernel/cpu/common.c                                    |   52 +-
 arch/x86/kvm/vmx/vmx.c                                          |   72 ++
 arch/x86/kvm/vmx/vmx.h                                          |    2 
 arch/x86/kvm/x86.c                                              |    3 
 drivers/base/cpu.c                                              |    8 
 include/linux/cpu.h                                             |    3 
 tools/arch/x86/include/asm/cpufeatures.h                        |    1 
 tools/arch/x86/include/asm/msr-index.h                          |   25 +
 17 files changed, 675 insertions(+), 40 deletions(-)

Greg Kroah-Hartman (1):
      Linux 5.15.48

Josh Poimboeuf (1):
      x86/speculation/mmio: Print SMT warning

Pawan Gupta (10):
      Documentation: Add documentation for Processor MMIO Stale Data
      x86/speculation/mmio: Enumerate Processor MMIO Stale Data bug
      x86/speculation: Add a common function for MD_CLEAR mitigation update
      x86/speculation/mmio: Add mitigation for Processor MMIO Stale Data
      x86/bugs: Group MDS, TAA & Processor MMIO Stale Data mitigations
      x86/speculation/mmio: Enable CPU Fill buffer clearing on idle
      x86/speculation/mmio: Add sysfs reporting for Processor MMIO Stale Data
      x86/speculation/srbds: Update SRBDS mitigation selection
      x86/speculation/mmio: Reuse SRBDS mitigation for SBDS
      KVM: x86/speculation: Disable Fill buffer clear within guests