[PATCH 6.1 00/15] 6.1.48-rc1 review

[Greg Kroah-Hartman]

This is the start of the stable review cycle for the 6.1.48 release.
There are 15 patches in this series, all will be posted as a response
to this one.  If anyone has any issues with these being applied, please
let me know.

Responses should be made by Sat, 26 Aug 2023 14:14:28 +0000.
Anything received after that time might be too late.

The whole patch series can be found in one patch at:
	https://www.kernel.org/pub/linux/kernel/v6.x/stable-review/patch-6.1.48-rc1.gz
or in the git tree and branch at:
	git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-6.1.y
and the diffstat can be found below.

thanks,

greg k-h

-------------
Pseudo-Shortlog of commits:

Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
    Linux 6.1.48-rc1

Borislav Petkov (AMD) <bp@xxxxxxxxx>
    x86/srso: Correct the mitigation status when SMT is disabled

Peter Zijlstra <peterz@xxxxxxxxxxxxx>
    objtool/x86: Fixup frame-pointer vs rethunk

Petr Pavlu <petr.pavlu@xxxxxxxx>
    x86/retpoline,kprobes: Fix position of thunk sections with CONFIG_LTO_CLANG

Borislav Petkov (AMD) <bp@xxxxxxxxx>
    x86/srso: Disable the mitigation on unaffected configurations

Borislav Petkov (AMD) <bp@xxxxxxxxx>
    x86/CPU/AMD: Fix the DIV(0) initial fix attempt

Sean Christopherson <seanjc@xxxxxxxxxx>
    x86/retpoline: Don't clobber RFLAGS during srso_safe_ret()

Peter Zijlstra <peterz@xxxxxxxxxxxxx>
    x86/static_call: Fix __static_call_fixup()

Borislav Petkov (AMD) <bp@xxxxxxxxx>
    x86/srso: Explain the untraining sequences a bit more

Peter Zijlstra <peterz@xxxxxxxxxxxxx>
    x86/cpu: Cleanup the untrain mess

Peter Zijlstra <peterz@xxxxxxxxxxxxx>
    x86/cpu: Rename srso_(.*)_alias to srso_alias_\1

Peter Zijlstra <peterz@xxxxxxxxxxxxx>
    x86/cpu: Rename original retbleed methods

Peter Zijlstra <peterz@xxxxxxxxxxxxx>
    x86/cpu: Clean up SRSO return thunk mess

Peter Zijlstra <peterz@xxxxxxxxxxxxx>
    x86/alternative: Make custom return thunk unconditional

Peter Zijlstra <peterz@xxxxxxxxxxxxx>
    x86/cpu: Fix up srso_safe_ret() and __x86_return_thunk()

Peter Zijlstra <peterz@xxxxxxxxxxxxx>
    x86/cpu: Fix __x86_return_thunk symbol type


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

Diffstat:

 Documentation/admin-guide/hw-vuln/srso.rst |   4 +-
 Makefile                                   |   4 +-
 arch/x86/include/asm/entry-common.h        |   1 +
 arch/x86/include/asm/nospec-branch.h       |  28 +++---
 arch/x86/kernel/cpu/amd.c                  |   1 +
 arch/x86/kernel/cpu/bugs.c                 |  28 +++++-
 arch/x86/kernel/static_call.c              |  13 +++
 arch/x86/kernel/traps.c                    |   2 -
 arch/x86/kernel/vmlinux.lds.S              |  20 ++--
 arch/x86/kvm/svm/svm.c                     |   2 +
 arch/x86/lib/retpoline.S                   | 141 ++++++++++++++++++++---------
 tools/objtool/arch/x86/decode.c            |   2 +-
 tools/objtool/check.c                      |  21 +++--
 13 files changed, 182 insertions(+), 85 deletions(-)