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47a60391ae0ed04ffbb9bd8dcd94ad9d08b41288
linux/include/asm-generic
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Jann Horn 47a60391ae rwonce: fix crash by removing READ_ONCE() for unaligned read 
When arm64 is built with LTO, it upgrades READ_ONCE() to ldar / ldapr
(load-acquire) to avoid issues that can be caused by the compiler
optimizing away implicit address dependencies.

Unlike plain loads, these load-acquire instructions actually require an
aligned address.

For now, fix it by removing the READ_ONCE() that the buggy commit
introduced.

Fixes: ece69af2ed ("rwonce: handle KCSAN like KASAN in read_word_at_a_time()")
Reported-by: Nathan Chancellor <nathan@kernel.org>
Closes: https://lore.kernel.org/r/20250326203926.GA10484@ax162
Signed-off-by: Jann Horn <jannh@google.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2025-03-26 22:16:50 +01:00
..
bitops
bitops: Change function return types from long to int
2024-05-03 17:04:50 +02:00
vdso
vdso: Remove timekeeper argument of __arch_update_vsyscall()
2024-10-15 17:50:28 +02:00
access_ok.h
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agp.h
…
archrandom.h
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asm-offsets.h
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asm-prototypes.h
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atomic64.h
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atomic.h
locking/atomic: make atomic*_{cmp,}xchg optional
2023-06-05 09:57:14 +02:00
audit_change_attr.h
fs/xattr: add *at family syscalls
2024-11-06 12:59:44 -05:00
audit_dir_write.h
…
audit_read.h
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audit_signal.h
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audit_write.h
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barrier.h
sched: Add missing memory barrier in switch_mm_cid
2024-04-16 13:59:45 +02:00
bitops.h
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bitsperlong.h
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bug.h
bug: Improve comment
2024-05-07 14:20:48 +02:00
cache.h
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cacheflush.h
mm: Introduce flush_cache_vmap_early()
2023-12-14 00:23:17 -08:00
cfi.h
cfi: Flip headers
2023-12-15 16:25:55 -08:00
checksum.h
asm-generic: Improve csum_fold
2024-01-17 17:52:29 -08:00
cmpxchg-local.h
asm-generic: Fix 32 bit __generic_cmpxchg_local
2024-01-05 23:19:14 +01:00
cmpxchg.h
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codetag.lds.h
alloc_tag: load module tags into separate contiguous memory
2024-11-07 14:25:16 -08:00
compat.h
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current.h
asm-generic: current: Don't include thread-info.h if building asm
2023-08-26 22:38:49 +02:00
delay.h
delay: Fix ndelay() spuriously treated as udelay()
2024-11-29 11:40:22 +01:00
device.h
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div64.h
__arch_xprod64(): make __always_inline when optimizing for performance
2024-10-28 21:44:28 +00:00
dma-mapping.h
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dma.h
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early_ioremap.h
mm/early_ioremap: add null pointer checks to prevent NULL-pointer dereference
2025-01-13 22:40:59 -08:00
emergency-restart.h
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error-injection.h
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exec.h
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extable.h
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fixmap.h
fixmap: Remove unused set_fixmap_offset_io()
2024-07-11 17:41:23 +02:00
flat.h
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fprobe.h
fprobe: Add fprobe_header encoding feature
2024-12-26 10:50:05 -05:00
ftrace.h
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futex.h
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getorder.h
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hardirq.h
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hugetlb.h
mm: consolidate common checks in hugetlb_get_unmapped_area
2024-11-06 20:11:10 -08:00
hw_irq.h
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int-ll64.h
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io.h
New implementation for IO memcpy and IO memset
2024-10-28 21:44:29 +00:00
ioctl.h
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iomap.h
asm-generic/io.h: rework split ioread64/iowrite64 helpers
2025-03-01 21:00:22 +01:00
irq_regs.h
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irq_work.h
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irq.h
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irqflags.h
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Kbuild
move asm/unaligned.h to linux/unaligned.h
2024-10-02 17:23:23 -04:00
kdebug.h
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kmap_size.h
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kprobes.h
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kvm_para.h
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kvm_types.h
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linkage.h
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local64.h
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local.h
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logic_io.h
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mcs_spinlock.h
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memory_model.h
asm-generic: add an optional pfn_valid check to page_to_phys
2024-10-28 21:44:28 +00:00
mm_hooks.h
mm: remove arch_unmap()
2024-09-01 20:26:13 -07:00
mmiowb_types.h
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mmiowb.h
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mmu_context.h
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mmu.h
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mmzone.h
arch, mm: move definition of node_data to generic code
2024-09-03 21:15:28 -07:00
module.h
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module.lds.h
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mshyperv.h
hyperv: Switch from hyperv-tlfs.h to hyperv/hvhdk.h
2025-01-10 00:54:21 +00:00
msi.h
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nommu_context.h
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numa.h
arch_numa: switch over to numa_memblks
2024-09-03 21:15:32 -07:00
param.h
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parport.h
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pci_iomap.h
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pci.h
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percpu.h
percpu: Fix self-assignment of __old in raw_cpu_generic_try_cmpxchg()
2023-06-08 10:28:39 +02:00
pgalloc.h
mm: introduce ctor/dtor at PGD level
2025-01-25 20:22:24 -08:00
pgtable_uffd.h
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pgtable-nop4d.h
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pgtable-nopmd.h
mm: recover pud_leaf() definitions in nopmd case
2024-03-13 12:12:21 -07:00
pgtable-nopud.h
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preempt.h
riscv: support PREEMPT_DYNAMIC with static keys
2023-08-31 00:18:34 -07:00
qrwlock_types.h
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qrwlock.h
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qspinlock_types.h
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qspinlock.h
riscv: Add qspinlock support
2024-11-11 07:33:20 -08:00
resource.h
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runtime-const.h
runtime constants: add default dummy infrastructure
2024-06-19 12:34:34 -07:00
rwonce.h
rwonce: fix crash by removing READ_ONCE() for unaligned read
2025-03-26 22:16:50 +01:00
seccomp.h
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sections.h
jump_label,module: Don't alloc static_key_mod for __ro_after_init keys
2024-03-22 11:18:16 +01:00
serial.h
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set_memory.h
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shmparam.h
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signal.h
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simd.h
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softirq_stack.h
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spinlock_types.h
asm-generic: ticket-lock: Reuse arch_spinlock_t of qspinlock
2024-11-11 07:33:16 -08:00
spinlock.h
asm-generic: ticket-lock: Add separate ticket-lock.h
2024-11-11 07:33:17 -08:00
statfs.h
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string.h
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switch_to.h
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syscall.h
include: update references to include/asm-<arch>
2025-01-12 20:20:59 -08:00
syscalls.h
syscalls: mmap(): use unsigned offset type consistently
2024-06-25 15:57:38 +02:00
text-patching.h
asm-generic: introduce text-patching.h
2024-11-07 14:25:15 -08:00
ticket_spinlock.h
riscv: Add qspinlock support
2024-11-11 07:33:20 -08:00
timex.h
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tlb.h
mm: pgtable: introduce generic pagetable_dtor_free()
2025-01-25 20:22:23 -08:00
tlbflush.h
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topology.h
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trace_clock.h
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uaccess.h
move asm/unaligned.h to linux/unaligned.h
2024-10-02 17:23:23 -04:00
user.h
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vermagic.h
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vga.h
empty include/asm-generic/vga.h
2024-11-11 21:51:42 +01:00
video.h
arch: Rename fbdev header and source files
2024-05-03 17:07:50 +02:00
vmlinux.lds.h
Rename .data.once to .data..once to fix resetting WARN*_ONCE
2024-11-27 09:38:27 +09:00
word-at-a-time.h
kernel.h: removed REPEAT_BYTE from kernel.h
2024-02-01 09:47:59 -08:00
xor.h
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