Hi Linus,
please pull a couple more retbleed fallout fixes.
It looks like their urgency is decreasing so it seems like we've managed
to catch whatever snafus the limited -rc testing has exposed. Maybe
we're getting ready... :)
Thx.
---
The following changes since commit ff6992735ade75aae3e35d16b17da1008d753d28:
Linux 5.19-rc7 (2022-07-17 13:30:22 -0700)
are available in the Git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git tags/x86_urgent_for_v5.19_rc8
for you to fetch changes up to b648ab487f31bc4c38941bc770ea97fe394304bb:
x86/speculation: Make all RETbleed mitigations 64-bit only (2022-07-23 18:45:11 +0200)
----------------------------------------------------------------
- Make retbleed mitigations 64-bit only (32-bit will need a bit more
work if even needed, at all).
- Prevent return thunks patching of the LKDTM modules as it is not needed there
- Avoid writing the SPEC_CTRL MSR on every kernel entry on eIBRS parts
- Enhance error output of apply_returns() when it fails to patch a return thunk
- A sparse fix to the sev-guest module
- Protect EFI fw calls by issuing an IBPB on AMD
----------------------------------------------------------------
Ben Hutchings (1):
x86/speculation: Make all RETbleed mitigations 64-bit only
Josh Poimboeuf (1):
lkdtm: Disable return thunks in rodata.c
Kees Cook (1):
x86/alternative: Report missing return thunk details
Pawan Gupta (1):
x86/bugs: Warn when "ibrs" mitigation is selected on Enhanced IBRS parts
Peter Zijlstra (1):
x86/amd: Use IBPB for firmware calls
Tom Lendacky (1):
virt: sev-guest: Pass the appropriate argument type to iounmap()
arch/x86/Kconfig | 8 ++++----
arch/x86/Makefile | 1 +
arch/x86/include/asm/cpufeatures.h | 1 +
arch/x86/include/asm/nospec-branch.h | 2 ++
arch/x86/kernel/alternative.c | 4 +++-
arch/x86/kernel/cpu/bugs.c | 14 +++++++++++++-
drivers/misc/lkdtm/Makefile | 9 ++++++---
drivers/virt/coco/sev-guest/sev-guest.c | 9 ++++++---
8 files changed, 36 insertions(+), 12 deletions(-)
--
Regards/Gruss,
Boris.
SUSE Software Solutions Germany GmbH
GF: Ivo Totev, Andrew Myers, Andrew McDonald, Martje Boudien Moerman
(HRB 36809, AG Nürnberg)
The pull request you sent on Sun, 24 Jul 2022 11:05:49 +0200:
> git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git tags/x86_urgent_for_v5.19_rc8
has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/05017fed92de32c167bbd21a5ee9ad0e489e19d4
Thank you!
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