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Jason A. Donenfeld 622754e84b stackprotector: actually use get_random_canary() 
The RNG always mixes in the Linux version extremely early in boot. It
also always includes a cycle counter, not only during early boot, but
each and every time it is invoked prior to being fully initialized.
Together, this means that the use of additional xors inside of the
various stackprotector.h files is superfluous and over-complicated.
Instead, we can get exactly the same thing, but better, by just calling
`get_random_canary()`.

Acked-by: Guo Ren <guoren@kernel.org> # for csky
Acked-by: Catalin Marinas <catalin.marinas@arm.com> # for arm64
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2022-11-18 02:18:10 +01:00
..
adc.h sh: remove __KERNEL__ ifdefs from non-UAPI headers 2020-08-14 22:05:14 -04:00
addrspace.h sh: remove __KERNEL__ ifdefs from non-UAPI headers 2020-08-14 22:05:14 -04:00
alignment.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
asm-offsets.h sh: include: convert to SPDX identifiers 2018-12-28 12:11:45 -08:00
atomic-grb.h locking/atomic: sh: move to ARCH_ATOMIC 2021-05-26 13:20:52 +02:00
atomic-irq.h locking/atomic: sh: move to ARCH_ATOMIC 2021-05-26 13:20:52 +02:00
atomic-llsc.h locking/atomic: sh: move to ARCH_ATOMIC 2021-05-26 13:20:52 +02:00
atomic.h locking/atomic: sh: move to ARCH_ATOMIC 2021-05-26 13:20:52 +02:00
barrier.h sh: remove sh5 support 2020-06-01 14:48:52 -04:00
bitops-cas.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
bitops-grb.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
bitops-llsc.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
bitops-op32.h provide arch_test_bit_acquire for architectures that define test_bit 2022-08-27 09:49:54 -07:00
bitops.h include: move find.h from asm_generic to linux 2022-01-15 08:47:31 -08:00
bl_bit.h sh: remove sh5 support 2020-06-01 14:48:52 -04:00
bl_bit_32.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
bug.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
bugs.h sh: remove sh5 support 2020-06-01 14:48:52 -04:00
cache.h treewide: Convert macro and uses of __section(foo) to __section("foo") 2020-10-25 14:51:49 -07:00
cache_insns.h sh: remove sh5 support 2020-06-01 14:48:52 -04:00
cache_insns_32.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
cacheflush.h Add linux/cacheflush.h 2021-11-17 10:36:15 -05:00
checksum.h sh: remove sh5 support 2020-06-01 14:48:52 -04:00
checksum_32.h sh: fix trivial misannotations 2021-09-17 13:59:56 -04:00
clock.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
cmpxchg-cas.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
cmpxchg-grb.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
cmpxchg-irq.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
cmpxchg-llsc.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
cmpxchg-xchg.h sh: include: convert to SPDX identifiers 2018-12-28 12:11:45 -08:00
cmpxchg.h locking/atomic: sh: move to ARCH_ATOMIC 2021-05-26 13:20:52 +02:00
device.h sh: include: convert to SPDX identifiers 2018-12-28 12:11:45 -08:00
dma-register.h sh: include: convert to SPDX identifiers 2018-12-28 12:11:45 -08:00
dma.h PCI: Move isa_dma_bridge_buggy out of asm/dma.h 2022-07-22 17:24:47 -05:00
dmabrg.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
dwarf.h sh: include: convert to SPDX identifiers 2018-12-28 12:11:45 -08:00
elf.h sh: remove __KERNEL__ ifdefs from non-UAPI headers 2020-08-14 22:05:14 -04:00
entry-macros.S License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
extable.h sh: remove sh5 support 2020-06-01 14:48:52 -04:00
fb.h sh: include: convert to SPDX identifiers 2018-12-28 12:11:45 -08:00
fixmap.h sh/highmem: Remove all traces of unused cruft 2020-11-06 23:14:54 +01:00
flat.h binfmt_flat: remove the persistent argument from flat_get_addr_from_rp 2019-06-24 09:16:47 +10:00
fpu.h kill unused dump_fpu() instances 2020-07-27 14:33:10 -04:00
freq.h sh: remove __KERNEL__ ifdefs from non-UAPI headers 2020-08-14 22:05:14 -04:00
ftrace.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
futex-cas.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
futex-irq.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
futex-llsc.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
futex.h sh: remove __KERNEL__ ifdefs from non-UAPI headers 2020-08-14 22:05:14 -04:00
gpio.h sh: Drop ARCH_NR_GPIOS definition 2021-01-06 19:55:27 -05:00
hardirq.h sh: irqstat: Use the generic irq_cpustat_t 2020-11-23 10:31:06 +01:00
hd64461.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
heartbeat.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
hugetlb.h mm: change huge_ptep_clear_flush() to return the original pte 2022-05-13 16:48:55 -07:00
hw_breakpoint.h perf/hw_breakpoint: Optimize constant number of breakpoint slots 2022-08-30 10:56:22 +02:00
hw_irq.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
i2c-sh7760.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
io.h sh: convert nommu io{re,un}map() to static inline functions 2022-07-03 15:42:32 -07:00
io_generic.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
io_noioport.h sh: Convert ins[bwl]/outs[bwl] macros to inline functions 2020-06-01 14:48:50 -04:00
io_trapped.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
irq.h sh: Cleanup about SPARSE_IRQ 2021-10-27 16:50:52 -04:00
irqflags.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Kbuild local64.h: make <asm/local64.h> mandatory 2020-12-29 15:36:49 -08:00
kdebug.h Revert "sh: add loglvl to printk_address()" 2020-08-14 22:05:07 -04:00
kexec.h sh: prefer _THIS_IP_ to current_text_addr 2018-08-17 16:20:27 -07:00
kgdb.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
kprobes.h kprobes: treewide: Make it harder to refer kretprobe_trampoline directly 2021-09-30 21:24:06 -04:00
linkage.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
machvec.h treewide: Convert macro and uses of __section(foo) to __section("foo") 2020-10-25 14:51:49 -07:00
mmiowb.h sh/mmiowb: Add unconditional mmiowb() to arch_spin_unlock() 2019-04-08 12:00:21 +01:00
mmu.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mmu_context.h sh: use asm-generic/mmu_context.h for no-op implementations 2020-10-27 16:02:38 +01:00
mmu_context_32.h sh: use asm-generic/mmu_context.h for no-op implementations 2020-10-27 16:02:38 +01:00
mmzone.h mm: replace CONFIG_NEED_MULTIPLE_NODES with CONFIG_NUMA 2021-06-29 10:53:55 -07:00
module.h arch: split MODULE_ARCH_VERMAGIC definitions out to <asm/vermagic.h> 2020-04-23 10:50:26 +09:00
page.h sh: remove sh5 support 2020-06-01 14:48:52 -04:00
pci.h PCI: Remove pci_get_legacy_ide_irq() and asm-generic/pci.h 2022-07-22 17:23:45 -05:00
perf_event.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pgalloc.h mm/thp: define default pmd_pgtable() 2021-07-01 11:06:03 -07:00
pgtable-2level.h sh: add support for folded p4d page tables 2020-06-04 19:06:21 -07:00
pgtable-3level.h sh: pgtable-3level: Fix cast to pointer from integer of different size 2021-10-27 16:56:34 -04:00
pgtable.h sh/mm: enable ARCH_HAS_VM_GET_PAGE_PROT 2022-07-17 17:14:41 -07:00
pgtable_32.h arch: Add pmd_pfn() where it is missing 2022-03-21 12:59:02 -04:00
platform_early.h sh: add the sh_ prefix to early platform symbols 2019-10-07 13:50:48 +02:00
posix_types.h sh: remove sh5 support 2020-06-01 14:48:52 -04:00
processor.h sh: remove CONFIG_SET_FS support 2022-02-25 09:36:06 +01:00
processor_32.h kernel: exit: cleanup release_thread() 2022-09-11 21:55:07 -07:00
ptrace.h sh: don't use asm-generic/ptrace.h 2019-07-01 17:51:40 +02:00
ptrace_32.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
push-switch.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
reboot.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
romimage-macros.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
rtc.h sh: remove board_time_init() callback 2018-12-18 16:13:04 +01:00
seccomp.h sh: Enable seccomp architecture tracking 2020-11-20 11:16:35 -08:00
sections.h sh: machvec: Use char[] for section boundaries 2022-09-13 10:33:17 -07:00
setup.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
sfp-machine.h sh: define __BIG_ENDIAN for math-emu 2021-10-27 16:51:24 -04:00
sh7760fb.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
sh_bios.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
shmparam.h sh: include: convert to SPDX identifiers 2018-12-28 12:11:45 -08:00
siu.h sh: include: convert to SPDX identifiers 2018-12-28 12:11:45 -08:00
smc37c93x.h arch: sh: smc37c93x: fix spelling mistake 2020-08-14 22:05:05 -04:00
smp-ops.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
smp.h treewide: Convert macro and uses of __section(foo) to __section("foo") 2020-10-25 14:51:49 -07:00
sparsemem.h Cleanup, SECCOMP_FILTER support, message printing fixes, and other 2020-08-15 18:50:32 -07:00
spi.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
spinlock-cas.h sh: include: convert to SPDX identifiers 2018-12-28 12:11:45 -08:00
spinlock-llsc.h sh/mmiowb: Add unconditional mmiowb() to arch_spin_unlock() 2019-04-08 12:00:21 +01:00
spinlock.h sh: include: convert to SPDX identifiers 2018-12-28 12:11:45 -08:00
spinlock_types.h locking: Allow to include asm/spinlock_types.h from linux/spinlock_types_raw.h 2021-12-07 15:14:12 +01:00
sram.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
stackprotector.h stackprotector: actually use get_random_canary() 2022-11-18 02:18:10 +01:00
stacktrace.h sh: stacktrace: Remove stacktrace_ops.stack() 2020-08-14 22:05:11 -04:00
string.h sh: remove sh5 support 2020-06-01 14:48:52 -04:00
string_32.h Cleanup, SECCOMP_FILTER support, message printing fixes, and other 2020-08-15 18:50:32 -07:00
suspend.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
switch_to.h sh: remove sh5 support 2020-06-01 14:48:52 -04:00
switch_to_32.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
syscall.h sh: remove sh5 support 2020-06-01 14:48:52 -04:00
syscall_32.h arch: remove unused function syscall_set_arguments() 2021-09-14 16:06:20 +02:00
syscalls.h sh: remove sh5 support 2020-06-01 14:48:52 -04:00
syscalls_32.h sh: remove __KERNEL__ ifdefs from non-UAPI headers 2020-08-14 22:05:14 -04:00
thread_info.h flexible-array transformations for 5.18-rc1 2022-03-24 11:39:32 -07:00
timex.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
tlb.h arch/sh/include/asm/tlb.h: remove duplicate include 2021-04-30 11:20:35 -07:00
tlbflush.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
topology.h arch/sh/include/asm/topology.h: remove unused parent_node() macro 2017-11-17 16:10:04 -08:00
traps.h sh: remove sh5 support 2020-06-01 14:48:52 -04:00
traps_32.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
types.h sh: remove sh5 support 2020-06-01 14:48:52 -04:00
uaccess.h sh: remove CONFIG_SET_FS support 2022-02-25 09:36:06 +01:00
uaccess_32.h sh: Implement __get_user_u64() required for 64-bit get_user() 2020-08-14 22:05:04 -04:00
uncached.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
unistd.h sh: remove sh5 support 2020-06-01 14:48:52 -04:00
unwinder.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
user.h asm/user.h: killed unused macros 2022-01-30 21:17:00 -05:00
vermagic.h sh: remove sh5 support 2020-06-01 14:48:52 -04:00
vga.h sh: include: convert to SPDX identifiers 2018-12-28 12:11:45 -08:00
vmalloc.h mm/vmalloc: Add empty <asm/vmalloc.h> headers and use them from <linux/vmalloc.h> 2019-12-10 10:12:55 +01:00
vmlinux.lds.h sh: remove sh5 support 2020-06-01 14:48:52 -04:00
watchdog.h sh: remove __KERNEL__ ifdefs from non-UAPI headers 2020-08-14 22:05:14 -04:00
word-at-a-time.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00