[PATCH 5.17 000/111] 5.17.12-rc1 review

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This is the start of the stable review cycle for the 5.17.12 release.
There are 111 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 Sun, 29 May 2022 08:46:36 +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/v5.x/stable-review/patch-5.17.12-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-5.17.y
and the diffstat can be found below.

thanks,

greg k-h

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

Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
    Linux 5.17.12-rc1

Edward Matijevic <motolav@xxxxxxxxx>
    ALSA: ctxfi: Add SB046x PCI ID

Lorenzo Pieralisi <lorenzo.pieralisi@xxxxxxx>
    ACPI: sysfs: Fix BERT error region memory mapping

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: check for signals after page of pool writes

Jens Axboe <axboe@xxxxxxxxx>
    random: wire up fops->splice_{read,write}_iter()

Jens Axboe <axboe@xxxxxxxxx>
    random: convert to using fops->write_iter()

Jens Axboe <axboe@xxxxxxxxx>
    random: convert to using fops->read_iter()

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: unify batched entropy implementations

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: move randomize_page() into mm where it belongs

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: move initialization functions out of hot pages

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: make consistent use of buf and len

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: use proper return types on get_random_{int,long}_wait()

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: remove extern from functions in header

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: use static branch for crng_ready()

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: credit architectural init the exact amount

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: handle latent entropy and command line from random_init()

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: use proper jiffies comparison macro

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: remove ratelimiting for in-kernel unseeded randomness

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: move initialization out of reseeding hot path

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: avoid initializing twice in credit race

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: use symbolic constants for crng_init states

Jason A. Donenfeld <Jason@xxxxxxxxx>
    siphash: use one source of truth for siphash permutations

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: help compiler out with fast_mix() by using simpler arguments

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: do not use input pool from hard IRQs

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: order timer entropy functions below interrupt functions

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: do not pretend to handle premature next security model

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: use first 128 bits of input as fast init

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: do not use batches when !crng_ready()

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: insist on random_get_entropy() existing in order to simplify

Jason A. Donenfeld <Jason@xxxxxxxxx>
    xtensa: use fallback for random_get_entropy() instead of zero

Jason A. Donenfeld <Jason@xxxxxxxxx>
    sparc: use fallback for random_get_entropy() instead of zero

Jason A. Donenfeld <Jason@xxxxxxxxx>
    um: use fallback for random_get_entropy() instead of zero

Jason A. Donenfeld <Jason@xxxxxxxxx>
    x86/tsc: Use fallback for random_get_entropy() instead of zero

Jason A. Donenfeld <Jason@xxxxxxxxx>
    nios2: use fallback for random_get_entropy() instead of zero

Jason A. Donenfeld <Jason@xxxxxxxxx>
    arm: use fallback for random_get_entropy() instead of zero

Jason A. Donenfeld <Jason@xxxxxxxxx>
    mips: use fallback for random_get_entropy() instead of just c0 random

Jason A. Donenfeld <Jason@xxxxxxxxx>
    riscv: use fallback for random_get_entropy() instead of zero

Jason A. Donenfeld <Jason@xxxxxxxxx>
    m68k: use fallback for random_get_entropy() instead of zero

Jason A. Donenfeld <Jason@xxxxxxxxx>
    timekeeping: Add raw clock fallback for random_get_entropy()

Jason A. Donenfeld <Jason@xxxxxxxxx>
    powerpc: define get_cycles macro for arch-override

Jason A. Donenfeld <Jason@xxxxxxxxx>
    alpha: define get_cycles macro for arch-override

Jason A. Donenfeld <Jason@xxxxxxxxx>
    parisc: define get_cycles macro for arch-override

Jason A. Donenfeld <Jason@xxxxxxxxx>
    s390: define get_cycles macro for arch-override

Jason A. Donenfeld <Jason@xxxxxxxxx>
    ia64: define get_cycles macro for arch-override

Jason A. Donenfeld <Jason@xxxxxxxxx>
    init: call time_init() before rand_initialize()

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: fix sysctl documentation nits

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: document crng_fast_key_erasure() destination possibility

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: make random_get_entropy() return an unsigned long

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: allow partial reads if later user copies fail

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: check for signals every PAGE_SIZE chunk of /dev/[u]random

Jann Horn <jannh@xxxxxxxxxx>
    random: check for signal_pending() outside of need_resched() check

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: do not allow user to keep crng key around on stack

Jan Varho <jan.varho@xxxxxxxxx>
    random: do not split fast init input in add_hwgenerator_randomness()

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: mix build-time latent entropy into pool at init

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: re-add removed comment about get_random_{u32,u64} reseeding

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: treat bootloader trust toggle the same way as cpu trust toggle

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: skip fast_init if hwrng provides large chunk of entropy

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: check for signal and try earlier when generating entropy

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: reseed more often immediately after booting

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: make consistent usage of crng_ready()

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: use SipHash as interrupt entropy accumulator

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: replace custom notifier chain with standard one

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: don't let 644 read-only sysctls be written to

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: give sysctl_random_min_urandom_seed a more sensible value

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: do crng pre-init loading in worker rather than irq

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: unify cycles_t and jiffies usage and types

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: cleanup UUID handling

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: only wake up writers after zap if threshold was passed

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: round-robin registers as ulong, not u32

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: clear fast pool, crng, and batches in cpuhp bring up

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: pull add_hwgenerator_randomness() declaration into random.h

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: check for crng_init == 0 in add_device_randomness()

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: unify early init crng load accounting

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: do not take pool spinlock at boot

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: defer fast pool mixing to worker

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: rewrite header introductory comment

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: group sysctl functions

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: group userspace read/write functions

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: group entropy collection functions

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: group entropy extraction functions

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: group crng functions

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: group initialization wait functions

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: remove whitespace and reorder includes

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: remove useless header comment

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: introduce drain_entropy() helper to declutter crng_reseed()

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: deobfuscate irq u32/u64 contributions

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: add proper SPDX header

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: remove unused tracepoints

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: remove ifdef'd out interrupt bench

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: tie batched entropy generation to base_crng generation

Dominik Brodowski <linux@xxxxxxxxxxxxxxxxxxxx>
    random: fix locking for crng_init in crng_reseed()

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: zero buffer after reading entropy from userspace

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: remove outdated INT_MAX >> 6 check in urandom_read()

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: make more consistent use of integer types

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: use hash function for crng_slow_load()

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: use simpler fast key erasure flow on per-cpu keys

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: absorb fast pool into input pool after fast load

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: do not xor RDRAND when writing into /dev/random

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: ensure early RDSEED goes through mixer on init

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: inline leaves of rand_initialize()

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: get rid of secondary crngs

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: use RDSEED instead of RDRAND in entropy extraction

Dominik Brodowski <linux@xxxxxxxxxxxxxxxxxxxx>
    random: fix locking in crng_fast_load()

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: remove batched entropy locking

Eric Biggers <ebiggers@xxxxxxxxxx>
    random: remove use_input_pool parameter from crng_reseed()

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: make credit_entropy_bits() always safe

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: always wake up entropy writers after extraction

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: use linear min-entropy accumulation crediting

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: simplify entropy debiting

Jason A. Donenfeld <Jason@xxxxxxxxx>
    random: use computational hash for entropy extraction

Paolo Bonzini <pbonzini@xxxxxxxxxx>
    KVM: x86/mmu: fix NULL pointer dereference on guest INVPCID

Basavaraj Natikar <Basavaraj.Natikar@xxxxxxx>
    HID: amd_sfh: Add support for sensor discovery


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

Diffstat:

 Documentation/admin-guide/kernel-parameters.txt |    6 +
 Documentation/admin-guide/sysctl/kernel.rst     |   22 +-
 Makefile                                        |    4 +-
 arch/alpha/include/asm/timex.h                  |    1 +
 arch/arm/include/asm/timex.h                    |    1 +
 arch/ia64/include/asm/timex.h                   |    1 +
 arch/m68k/include/asm/timex.h                   |    2 +-
 arch/mips/include/asm/timex.h                   |   17 +-
 arch/nios2/include/asm/timex.h                  |    3 +
 arch/parisc/include/asm/timex.h                 |    3 +-
 arch/powerpc/include/asm/timex.h                |    1 +
 arch/riscv/include/asm/timex.h                  |    2 +-
 arch/s390/include/asm/timex.h                   |    1 +
 arch/sparc/include/asm/timex_32.h               |    4 +-
 arch/um/include/asm/timex.h                     |    9 +-
 arch/x86/include/asm/timex.h                    |    9 +
 arch/x86/include/asm/tsc.h                      |    7 +-
 arch/x86/kvm/mmu/mmu.c                          |    6 +-
 arch/xtensa/include/asm/timex.h                 |    6 +-
 drivers/acpi/sysfs.c                            |   25 +-
 drivers/char/Kconfig                            |    3 +-
 drivers/char/hw_random/core.c                   |    1 +
 drivers/char/random.c                           | 2868 +++++++++--------------
 drivers/hid/amd-sfh-hid/amd_sfh_client.c        |   11 +
 drivers/hid/amd-sfh-hid/amd_sfh_pcie.c          |    7 +
 drivers/hid/amd-sfh-hid/amd_sfh_pcie.h          |    4 +
 include/linux/cpuhotplug.h                      |    2 +
 include/linux/hw_random.h                       |    2 -
 include/linux/mm.h                              |    1 +
 include/linux/prandom.h                         |   23 +-
 include/linux/random.h                          |  100 +-
 include/linux/siphash.h                         |   28 +
 include/linux/timex.h                           |   10 +-
 include/trace/events/random.h                   |  233 --
 init/main.c                                     |   13 +-
 kernel/cpu.c                                    |   11 +
 kernel/time/timekeeping.c                       |   15 +
 lib/Kconfig.debug                               |    3 +-
 lib/random32.c                                  |   14 +-
 lib/siphash.c                                   |   32 +-
 lib/vsprintf.c                                  |   10 +-
 mm/util.c                                       |   32 +
 sound/pci/ctxfi/ctatc.c                         |    2 +
 sound/pci/ctxfi/cthardware.h                    |    3 +-
 44 files changed, 1365 insertions(+), 2193 deletions(-)





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