Linux 5.15.48

From: Greg Kroah-Hartman
Date: Thu Jun 16 2022 - 07:54:20 EST


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