This is the start of the stable review cycle for the 5.15.44 release. There are 145 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 08:46:32 +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-5.15.44-rc1... or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.15.y and the diffstat can be found below.

thanks,

greg k-h

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

Greg Kroah-Hartman gregkh@linuxfoundation.org Linux 5.15.44-rc1

Edward Matijevic motolav@gmail.com ALSA: ctxfi: Add SB046x PCI ID

Jason A. Donenfeld Jason@zx2c4.com random: check for signals after page of pool writes

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

Jens Axboe axboe@kernel.dk random: convert to using fops->write_iter()

Jens Axboe axboe@kernel.dk random: convert to using fops->read_iter()

Jason A. Donenfeld Jason@zx2c4.com random: unify batched entropy implementations

Jason A. Donenfeld Jason@zx2c4.com random: move randomize_page() into mm where it belongs

Jason A. Donenfeld Jason@zx2c4.com random: move initialization functions out of hot pages

Jason A. Donenfeld Jason@zx2c4.com random: make consistent use of buf and len

Jason A. Donenfeld Jason@zx2c4.com random: use proper return types on get_random_{int,long}_wait()

Jason A. Donenfeld Jason@zx2c4.com random: remove extern from functions in header

Jason A. Donenfeld Jason@zx2c4.com random: use static branch for crng_ready()

Jason A. Donenfeld Jason@zx2c4.com random: credit architectural init the exact amount

Jason A. Donenfeld Jason@zx2c4.com random: handle latent entropy and command line from random_init()

Jason A. Donenfeld Jason@zx2c4.com random: use proper jiffies comparison macro

Jason A. Donenfeld Jason@zx2c4.com random: remove ratelimiting for in-kernel unseeded randomness

Jason A. Donenfeld Jason@zx2c4.com random: move initialization out of reseeding hot path

Jason A. Donenfeld Jason@zx2c4.com random: avoid initializing twice in credit race

Jason A. Donenfeld Jason@zx2c4.com random: use symbolic constants for crng_init states

Jason A. Donenfeld Jason@zx2c4.com siphash: use one source of truth for siphash permutations

Jason A. Donenfeld Jason@zx2c4.com random: help compiler out with fast_mix() by using simpler arguments

Jason A. Donenfeld Jason@zx2c4.com random: do not use input pool from hard IRQs

Jason A. Donenfeld Jason@zx2c4.com random: order timer entropy functions below interrupt functions

Jason A. Donenfeld Jason@zx2c4.com random: do not pretend to handle premature next security model

Jason A. Donenfeld Jason@zx2c4.com random: use first 128 bits of input as fast init

Jason A. Donenfeld Jason@zx2c4.com random: do not use batches when !crng_ready()

Jason A. Donenfeld Jason@zx2c4.com random: insist on random_get_entropy() existing in order to simplify

Jason A. Donenfeld Jason@zx2c4.com xtensa: use fallback for random_get_entropy() instead of zero

Jason A. Donenfeld Jason@zx2c4.com sparc: use fallback for random_get_entropy() instead of zero

Jason A. Donenfeld Jason@zx2c4.com um: use fallback for random_get_entropy() instead of zero

Jason A. Donenfeld Jason@zx2c4.com x86/tsc: Use fallback for random_get_entropy() instead of zero

Jason A. Donenfeld Jason@zx2c4.com nios2: use fallback for random_get_entropy() instead of zero

Jason A. Donenfeld Jason@zx2c4.com arm: use fallback for random_get_entropy() instead of zero

Jason A. Donenfeld Jason@zx2c4.com mips: use fallback for random_get_entropy() instead of just c0 random

Jason A. Donenfeld Jason@zx2c4.com riscv: use fallback for random_get_entropy() instead of zero

Jason A. Donenfeld Jason@zx2c4.com m68k: use fallback for random_get_entropy() instead of zero

Jason A. Donenfeld Jason@zx2c4.com timekeeping: Add raw clock fallback for random_get_entropy()

Jason A. Donenfeld Jason@zx2c4.com powerpc: define get_cycles macro for arch-override

Jason A. Donenfeld Jason@zx2c4.com alpha: define get_cycles macro for arch-override

Jason A. Donenfeld Jason@zx2c4.com parisc: define get_cycles macro for arch-override

Jason A. Donenfeld Jason@zx2c4.com s390: define get_cycles macro for arch-override

Jason A. Donenfeld Jason@zx2c4.com ia64: define get_cycles macro for arch-override

Jason A. Donenfeld Jason@zx2c4.com init: call time_init() before rand_initialize()

Jason A. Donenfeld Jason@zx2c4.com random: fix sysctl documentation nits

Jason A. Donenfeld Jason@zx2c4.com random: document crng_fast_key_erasure() destination possibility

Jason A. Donenfeld Jason@zx2c4.com random: make random_get_entropy() return an unsigned long

Jason A. Donenfeld Jason@zx2c4.com random: allow partial reads if later user copies fail

Jason A. Donenfeld Jason@zx2c4.com random: check for signals every PAGE_SIZE chunk of /dev/[u]random

Jann Horn jannh@google.com random: check for signal_pending() outside of need_resched() check

Jason A. Donenfeld Jason@zx2c4.com random: do not allow user to keep crng key around on stack

Jan Varho jan.varho@gmail.com random: do not split fast init input in add_hwgenerator_randomness()

Jason A. Donenfeld Jason@zx2c4.com random: mix build-time latent entropy into pool at init

Jason A. Donenfeld Jason@zx2c4.com random: re-add removed comment about get_random_{u32,u64} reseeding

Jason A. Donenfeld Jason@zx2c4.com random: treat bootloader trust toggle the same way as cpu trust toggle

Jason A. Donenfeld Jason@zx2c4.com random: skip fast_init if hwrng provides large chunk of entropy

Jason A. Donenfeld Jason@zx2c4.com random: check for signal and try earlier when generating entropy

Jason A. Donenfeld Jason@zx2c4.com random: reseed more often immediately after booting

Jason A. Donenfeld Jason@zx2c4.com random: make consistent usage of crng_ready()

Jason A. Donenfeld Jason@zx2c4.com random: use SipHash as interrupt entropy accumulator

Jason A. Donenfeld Jason@zx2c4.com random: replace custom notifier chain with standard one

Jason A. Donenfeld Jason@zx2c4.com random: don't let 644 read-only sysctls be written to

Jason A. Donenfeld Jason@zx2c4.com random: give sysctl_random_min_urandom_seed a more sensible value

Jason A. Donenfeld Jason@zx2c4.com random: do crng pre-init loading in worker rather than irq

Jason A. Donenfeld Jason@zx2c4.com random: unify cycles_t and jiffies usage and types

Jason A. Donenfeld Jason@zx2c4.com random: cleanup UUID handling

Jason A. Donenfeld Jason@zx2c4.com random: only wake up writers after zap if threshold was passed

Jason A. Donenfeld Jason@zx2c4.com random: round-robin registers as ulong, not u32

Jason A. Donenfeld Jason@zx2c4.com random: clear fast pool, crng, and batches in cpuhp bring up

Jason A. Donenfeld Jason@zx2c4.com random: pull add_hwgenerator_randomness() declaration into random.h

Jason A. Donenfeld Jason@zx2c4.com random: check for crng_init == 0 in add_device_randomness()

Jason A. Donenfeld Jason@zx2c4.com random: unify early init crng load accounting

Jason A. Donenfeld Jason@zx2c4.com random: do not take pool spinlock at boot

Jason A. Donenfeld Jason@zx2c4.com random: defer fast pool mixing to worker

Jason A. Donenfeld Jason@zx2c4.com random: rewrite header introductory comment

Jason A. Donenfeld Jason@zx2c4.com random: group sysctl functions

Jason A. Donenfeld Jason@zx2c4.com random: group userspace read/write functions

Jason A. Donenfeld Jason@zx2c4.com random: group entropy collection functions

Jason A. Donenfeld Jason@zx2c4.com random: group entropy extraction functions

Jason A. Donenfeld Jason@zx2c4.com random: group crng functions

Jason A. Donenfeld Jason@zx2c4.com random: group initialization wait functions

Jason A. Donenfeld Jason@zx2c4.com random: remove whitespace and reorder includes

Jason A. Donenfeld Jason@zx2c4.com random: remove useless header comment

Jason A. Donenfeld Jason@zx2c4.com random: introduce drain_entropy() helper to declutter crng_reseed()

Jason A. Donenfeld Jason@zx2c4.com random: deobfuscate irq u32/u64 contributions

Jason A. Donenfeld Jason@zx2c4.com random: add proper SPDX header

Jason A. Donenfeld Jason@zx2c4.com random: remove unused tracepoints

Jason A. Donenfeld Jason@zx2c4.com random: remove ifdef'd out interrupt bench

Jason A. Donenfeld Jason@zx2c4.com random: tie batched entropy generation to base_crng generation

Dominik Brodowski linux@dominikbrodowski.net random: fix locking for crng_init in crng_reseed()

Jason A. Donenfeld Jason@zx2c4.com random: zero buffer after reading entropy from userspace

Jason A. Donenfeld Jason@zx2c4.com random: remove outdated INT_MAX >> 6 check in urandom_read()

Jason A. Donenfeld Jason@zx2c4.com random: make more consistent use of integer types

Jason A. Donenfeld Jason@zx2c4.com random: use hash function for crng_slow_load()

Jason A. Donenfeld Jason@zx2c4.com random: use simpler fast key erasure flow on per-cpu keys

Jason A. Donenfeld Jason@zx2c4.com random: absorb fast pool into input pool after fast load

Jason A. Donenfeld Jason@zx2c4.com random: do not xor RDRAND when writing into /dev/random

Jason A. Donenfeld Jason@zx2c4.com random: ensure early RDSEED goes through mixer on init

Jason A. Donenfeld Jason@zx2c4.com random: inline leaves of rand_initialize()

Jason A. Donenfeld Jason@zx2c4.com random: get rid of secondary crngs

Jason A. Donenfeld Jason@zx2c4.com random: use RDSEED instead of RDRAND in entropy extraction

Dominik Brodowski linux@dominikbrodowski.net random: fix locking in crng_fast_load()

Jason A. Donenfeld Jason@zx2c4.com random: remove batched entropy locking

Eric Biggers ebiggers@google.com random: remove use_input_pool parameter from crng_reseed()

Jason A. Donenfeld Jason@zx2c4.com random: make credit_entropy_bits() always safe

Jason A. Donenfeld Jason@zx2c4.com random: always wake up entropy writers after extraction

Jason A. Donenfeld Jason@zx2c4.com random: use linear min-entropy accumulation crediting

Jason A. Donenfeld Jason@zx2c4.com random: simplify entropy debiting

Jason A. Donenfeld Jason@zx2c4.com random: use computational hash for entropy extraction

Dominik Brodowski linux@dominikbrodowski.net random: only call crng_finalize_init() for primary_crng

Dominik Brodowski linux@dominikbrodowski.net random: access primary_pool directly rather than through pointer

Dominik Brodowski linux@dominikbrodowski.net random: continually use hwgenerator randomness

Jason A. Donenfeld Jason@zx2c4.com random: simplify arithmetic function flow in account()

Jason A. Donenfeld Jason@zx2c4.com random: selectively clang-format where it makes sense

Jason A. Donenfeld Jason@zx2c4.com random: access input_pool_data directly rather than through pointer

Jason A. Donenfeld Jason@zx2c4.com random: cleanup fractional entropy shift constants

Jason A. Donenfeld Jason@zx2c4.com random: prepend remaining pool constants with POOL_

Jason A. Donenfeld Jason@zx2c4.com random: de-duplicate INPUT_POOL constants

Jason A. Donenfeld Jason@zx2c4.com random: remove unused OUTPUT_POOL constants

Jason A. Donenfeld Jason@zx2c4.com random: rather than entropy_store abstraction, use global

Jason A. Donenfeld Jason@zx2c4.com random: remove unused extract_entropy() reserved argument

Jason A. Donenfeld Jason@zx2c4.com random: remove incomplete last_data logic

Jason A. Donenfeld Jason@zx2c4.com random: cleanup integer types

Jason A. Donenfeld Jason@zx2c4.com random: cleanup poolinfo abstraction

Schspa Shi schspa@gmail.com random: fix typo in comments

Jann Horn jannh@google.com random: don't reset crng_init_cnt on urandom_read()

Jason A. Donenfeld Jason@zx2c4.com random: avoid superfluous call to RDRAND in CRNG extraction

Dominik Brodowski linux@dominikbrodowski.net random: early initialization of ChaCha constants

Jason A. Donenfeld Jason@zx2c4.com random: use IS_ENABLED(CONFIG_NUMA) instead of ifdefs

Dominik Brodowski linux@dominikbrodowski.net random: harmonize "crng init done" messages

Jason A. Donenfeld Jason@zx2c4.com random: mix bootloader randomness into pool

Jason A. Donenfeld Jason@zx2c4.com random: do not re-init if crng_reseed completes before primary init

Jason A. Donenfeld Jason@zx2c4.com random: do not sign extend bytes for rotation when mixing

Jason A. Donenfeld Jason@zx2c4.com random: use BLAKE2s instead of SHA1 in extraction

Sebastian Andrzej Siewior bigeasy@linutronix.de random: remove unused irq_flags argument from add_interrupt_randomness()

Mark Brown broonie@kernel.org random: document add_hwgenerator_randomness() with other input functions

Jason A. Donenfeld Jason@zx2c4.com lib/crypto: blake2s: avoid indirect calls to compression function for Clang CFI

Jason A. Donenfeld Jason@zx2c4.com lib/crypto: sha1: re-roll loops to reduce code size

Jason A. Donenfeld Jason@zx2c4.com lib/crypto: blake2s: move hmac construction into wireguard

Jason A. Donenfeld Jason@zx2c4.com lib/crypto: blake2s: include as built-in

Jason A. Donenfeld Jason@zx2c4.com MAINTAINERS: add git tree for random.c

Jason A. Donenfeld Jason@zx2c4.com MAINTAINERS: co-maintain random.c

Lorenzo Pieralisi lorenzo.pieralisi@arm.com ACPI: sysfs: Fix BERT error region memory mapping

Magnus Karlsson magnus.karlsson@intel.com ice: fix crash at allocation failure

Paolo Bonzini pbonzini@redhat.com KVM: x86/mmu: fix NULL pointer dereference on guest INVPCID

Basavaraj Natikar Basavaraj.Natikar@amd.com HID: amd_sfh: Add support for sensor discovery

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

Diffstat:

Documentation/admin-guide/kernel-parameters.txt | 6 + Documentation/admin-guide/sysctl/kernel.rst | 22 +- MAINTAINERS | 2 + Makefile | 4 +- arch/alpha/include/asm/timex.h | 1 + arch/arm/crypto/Makefile | 4 +- arch/arm/crypto/blake2s-core.S | 8 +- arch/arm/crypto/blake2s-glue.c | 73 +- arch/arm/crypto/blake2s-shash.c | 75 + 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/crypto/Makefile | 4 +- arch/x86/crypto/blake2s-glue.c | 68 +- arch/x86/crypto/blake2s-shash.c | 77 + arch/x86/include/asm/timex.h | 9 + arch/x86/include/asm/tsc.h | 7 +- arch/x86/kernel/cpu/mshyperv.c | 2 +- arch/x86/kvm/mmu/mmu.c | 6 +- arch/xtensa/include/asm/timex.h | 6 +- crypto/Kconfig | 3 +- crypto/blake2s_generic.c | 4 +- crypto/drbg.c | 17 +- drivers/acpi/sysfs.c | 25 +- drivers/char/Kconfig | 3 +- drivers/char/hw_random/core.c | 1 + drivers/char/random.c | 3011 +++++++++-------------- 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 + drivers/hv/vmbus_drv.c | 2 +- drivers/net/Kconfig | 1 - drivers/net/ethernet/intel/ice/ice_xsk.c | 2 +- drivers/net/wireguard/noise.c | 45 +- include/crypto/blake2s.h | 3 - include/crypto/chacha.h | 15 +- include/crypto/drbg.h | 2 +- include/crypto/internal/blake2s.h | 46 +- 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 | 247 -- init/main.c | 13 +- kernel/cpu.c | 11 + kernel/irq/handle.c | 2 +- kernel/time/timekeeping.c | 15 + lib/Kconfig.debug | 3 +- lib/crypto/Kconfig | 23 +- lib/crypto/Makefile | 9 +- lib/crypto/blake2s-generic.c | 6 +- lib/crypto/blake2s-selftest.c | 31 - lib/crypto/blake2s.c | 47 +- lib/random32.c | 16 +- lib/sha1.c | 95 +- lib/siphash.c | 32 +- lib/vsprintf.c | 10 +- mm/util.c | 32 + sound/pci/ctxfi/ctatc.c | 2 + sound/pci/ctxfi/cthardware.h | 3 +- 71 files changed, 1683 insertions(+), 2700 deletions(-)