This is the start of the stable review cycle for the 4.19.266 release.
There are 34 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 Wed, 23 Nov 2022 12:41:40 +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/v4.x/stable-review/patch-4.19.266-r…
or in the git tree and branch at:
git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.19.y
and the diffstat can be found below.
thanks,
greg k-h
-------------
Pseudo-Shortlog of commits:
Greg Kroah-Hartman <gregkh(a)linuxfoundation.org>
Linux 4.19.266-rc1
Daniel Sneddon <daniel.sneddon(a)linux.intel.com>
x86/speculation: Add RSB VM Exit protections
Pawan Gupta <pawan.kumar.gupta(a)linux.intel.com>
x86/bugs: Warn when "ibrs" mitigation is selected on Enhanced IBRS parts
Nathan Chancellor <nathan(a)kernel.org>
x86/speculation: Use DECLARE_PER_CPU for x86_spec_ctrl_current
Pawan Gupta <pawan.kumar.gupta(a)linux.intel.com>
x86/speculation: Disable RRSBA behavior
Pawan Gupta <pawan.kumar.gupta(a)linux.intel.com>
x86/bugs: Add Cannon lake to RETBleed affected CPU list
Andrew Cooper <andrew.cooper3(a)citrix.com>
x86/cpu/amd: Enumerate BTC_NO
Peter Zijlstra <peterz(a)infradead.org>
x86/common: Stamp out the stepping madness
Josh Poimboeuf <jpoimboe(a)kernel.org>
x86/speculation: Fill RSB on vmexit for IBRS
Josh Poimboeuf <jpoimboe(a)kernel.org>
KVM: VMX: Fix IBRS handling after vmexit
Josh Poimboeuf <jpoimboe(a)kernel.org>
KVM: VMX: Prevent guest RSB poisoning attacks with eIBRS
Josh Poimboeuf <jpoimboe(a)kernel.org>
x86/speculation: Remove x86_spec_ctrl_mask
Josh Poimboeuf <jpoimboe(a)kernel.org>
x86/speculation: Use cached host SPEC_CTRL value for guest entry/exit
Josh Poimboeuf <jpoimboe(a)kernel.org>
x86/speculation: Fix SPEC_CTRL write on SMT state change
Josh Poimboeuf <jpoimboe(a)kernel.org>
x86/speculation: Fix firmware entry SPEC_CTRL handling
Josh Poimboeuf <jpoimboe(a)kernel.org>
x86/speculation: Fix RSB filling with CONFIG_RETPOLINE=n
Peter Zijlstra <peterz(a)infradead.org>
x86/speculation: Change FILL_RETURN_BUFFER to work with objtool
Peter Zijlstra <peterz(a)infradead.org>
intel_idle: Disable IBRS during long idle
Peter Zijlstra <peterz(a)infradead.org>
x86/bugs: Report Intel retbleed vulnerability
Peter Zijlstra <peterz(a)infradead.org>
x86/bugs: Split spectre_v2_select_mitigation() and spectre_v2_user_select_mitigation()
Pawan Gupta <pawan.kumar.gupta(a)linux.intel.com>
x86/speculation: Add spectre_v2=ibrs option to support Kernel IBRS
Peter Zijlstra <peterz(a)infradead.org>
x86/bugs: Optimize SPEC_CTRL MSR writes
Peter Zijlstra <peterz(a)infradead.org>
x86/entry: Add kernel IBRS implementation
Peter Zijlstra <peterz(a)infradead.org>
x86/entry: Remove skip_r11rcx
Peter Zijlstra <peterz(a)infradead.org>
x86/bugs: Keep a per-CPU IA32_SPEC_CTRL value
Alexandre Chartre <alexandre.chartre(a)oracle.com>
x86/bugs: Add AMD retbleed= boot parameter
Alexandre Chartre <alexandre.chartre(a)oracle.com>
x86/bugs: Report AMD retbleed vulnerability
Peter Zijlstra <peterz(a)infradead.org>
x86/cpufeatures: Move RETPOLINE flags to word 11
Mark Gross <mgross(a)linux.intel.com>
x86/cpu: Add a steppings field to struct x86_cpu_id
Thomas Gleixner <tglx(a)linutronix.de>
x86/cpu: Add consistent CPU match macros
Thomas Gleixner <tglx(a)linutronix.de>
x86/devicetable: Move x86 specific macro out of generic code
Ingo Molnar <mingo(a)kernel.org>
x86/cpufeature: Fix various quality problems in the <asm/cpu_device_hd.h> header
Kan Liang <kan.liang(a)linux.intel.com>
x86/cpufeature: Add facility to check for min microcode revisions
Suleiman Souhlal <suleiman(a)google.com>
Revert "x86/cpu: Add a steppings field to struct x86_cpu_id"
Suleiman Souhlal <suleiman(a)google.com>
Revert "x86/speculation: Add RSB VM Exit protections"
-------------
Diffstat:
Documentation/admin-guide/kernel-parameters.txt | 13 +
Makefile | 4 +-
arch/x86/entry/calling.h | 68 ++++-
arch/x86/entry/entry_32.S | 2 -
arch/x86/entry/entry_64.S | 34 ++-
arch/x86/entry/entry_64_compat.S | 11 +-
arch/x86/include/asm/cpu_device_id.h | 168 ++++++++++-
arch/x86/include/asm/cpufeatures.h | 18 +-
arch/x86/include/asm/intel-family.h | 6 +
arch/x86/include/asm/msr-index.h | 10 +
arch/x86/include/asm/nospec-branch.h | 53 ++--
arch/x86/kernel/cpu/amd.c | 21 +-
arch/x86/kernel/cpu/bugs.c | 368 +++++++++++++++++++-----
arch/x86/kernel/cpu/common.c | 60 ++--
arch/x86/kernel/cpu/match.c | 44 ++-
arch/x86/kernel/cpu/scattered.c | 1 +
arch/x86/kernel/process.c | 2 +-
arch/x86/kvm/svm.c | 1 +
arch/x86/kvm/vmx.c | 53 +++-
arch/x86/kvm/x86.c | 4 +-
drivers/base/cpu.c | 8 +
drivers/cpufreq/acpi-cpufreq.c | 1 +
drivers/cpufreq/amd_freq_sensitivity.c | 1 +
drivers/idle/intel_idle.c | 43 ++-
include/linux/cpu.h | 2 +
include/linux/kvm_host.h | 2 +-
include/linux/mod_devicetable.h | 4 +-
tools/arch/x86/include/asm/cpufeatures.h | 1 +
28 files changed, 815 insertions(+), 188 deletions(-)
Today's Linux next 20221122 tag mips bcm63xx_defconfig build fails,
Reported-by: Linux Kernel Functional Testing <lkft(a)linaro.org>
make --silent --keep-going --jobs=8
O=/home/tuxbuild/.cache/tuxmake/builds/1/build ARCH=mips
CROSS_COMPILE=mips-linux-gnu- 'CC=sccache mips-linux-gnu-gcc'
'HOSTCC=sccache gcc'
io_uring/io_uring.c: In function 'io_eventfd_ops':
io_uring/io_uring.c:498:17: error: implicit declaration of function
'eventfd_signal_mask'; did you mean 'eventfd_signal'?
[-Werror=implicit-function-declaration]
498 | eventfd_signal_mask(ev_fd->cq_ev_fd, 1,
EPOLL_URING_WAKE);
| ^~~~~~~~~~~~~~~~~~~
| eventfd_signal
cc1: some warnings being treated as errors
make[3]: *** [scripts/Makefile.build:252: io_uring/io_uring.o] Error 1
log:
https://builds.tuxbuild.com/2HtTq82BIEEuUvHRpsnQuSFdite/
Build history:
https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20221122/te…
--
Linaro LKFT
https://lkft.linaro.org
Today's Linux next 20221122 tag clang-15 tinyconfig builds fails on
powerpc and s390 architectures.
Reported-by: Linux Kernel Functional Testing <lkft(a)linaro.org>
make --silent --keep-going --jobs=8
O=/home/tuxbuild/.cache/tuxmake/builds/1/build LLVM_IAS=0 ARCH=s390
CROSS_COMPILE=s390x-linux-gnu- 'HOSTCC=sccache clang' 'CC=sccache
clang'
kernel/printk/printk.c:95:1: error: type specifier missing, defaults
to 'int'; ISO C99 and later do not support implicit int
[-Werror,-Wimplicit-int]
DEFINE_STATIC_SRCU(console_srcu);
^
int
kernel/printk/printk.c:95:20: error: a parameter list without types is
only allowed in a function definition
DEFINE_STATIC_SRCU(console_srcu);
^
kernel/printk/printk.c:261:29: error: use of undeclared identifier
'console_srcu'
srcu_read_lock_held(&console_srcu));
^
kernel/printk/printk.c:288:33: error: use of undeclared identifier
'console_srcu'
return srcu_read_lock_nmisafe(&console_srcu);
^
kernel/printk/printk.c:300:28: error: use of undeclared identifier
'console_srcu'
srcu_read_unlock_nmisafe(&console_srcu, cookie);
^
kernel/printk/printk.c:3122:20: error: use of undeclared identifier
'console_srcu'
synchronize_srcu(&console_srcu);
^
kernel/printk/printk.c:3469:20: error: use of undeclared identifier
'console_srcu'
synchronize_srcu(&console_srcu);
^
kernel/printk/printk.c:3521:20: error: use of undeclared identifier
'console_srcu'
synchronize_srcu(&console_srcu);
^
8 errors generated.
log:
https://builds.tuxbuild.com/2HtTqOb2b83eGTzpS4bjLf59Agd/
Build history:
https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20221122/te…
--
Linaro LKFT
https://lkft.linaro.org
LKFT detected arm64 boot regression on today's Linux next-20221121 tag.
The Kernel boot log did not show anything on the serial console.
Anders bisected this problem and found the subject commit is the
first bad commit.
# first bad commit: [9ed2b4616d4e846ece2a04cb5007ce1d1bd9e3f3]
arm64/mm: Drop redundant BUG_ON(!pgtable_alloc)
Later it was found this lore link which was already reported [1].
ref:
[1] https://lore.kernel.org/all/Y3pS5fdZ3MdLZ00t@dev-arch.thelio-3990X/
--
Linaro LKFT
https://lkft.linaro.org
On Mon, 21 Nov 2022 at 08:28, Naresh Kamboju <naresh.kamboju(a)linaro.org> wrote:
>
> Hi Dave,
>
> On Fri, 18 Nov 2022 at 05:24, Dave Hansen <dave.hansen(a)intel.com> wrote:
> >
> > On 11/17/22 15:23, Marco Elver wrote:
> > > Yes - it's the 'level != PG_LEVEL_4K'.
> >
> > That plus the bisect made it pretty easy to find, thanks for the effort!
> >
> > Could you double-check that the attached patch fixes it? It seemed to
> > for me.
>
> I have applied the attached patch on Linux next 20221118 and tested [1].
> The reported issue has been fixed now.
>
> Reported-by: Linux Kernel Functional Testing <lkft(a)linaro.org>
> Tested-by: Linux Kernel Functional Testing <lkft(a)linaro.org>
> Tested-by: Naresh Kamboju <naresh.kamboju(a)linaro.org>
>
> OTOH,
> I request you to walk through the boot and test log [1] (new see few failures).
> not ok 7 - test_double_free
> not ok 9 - test_invalid_addr_free
> not ok 11 - test_corruption
> not ok 18 - test_kmalloc_aligned_oob_write
> # kfence: pass:19 fail:4 skip:2 total:25
> # Totals: pass:19 fail:4 skip:2 total:25
> not ok 6 - kfence
Fixed by https://lkml.kernel.org/r/20221118152216.3914899-1-elver@google.com
