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kernel_samsung_a53x/arch/x86/kernel
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Borislav Petkov (AMD) 3e4bf1a5e2 x86/mce: Make sure to grab mce_sysfs_mutex in set_bank() 
commit 3ddf944b32f88741c303f0b21459dbb3872b8bc5 upstream.

Modifying a MCA bank's MCA_CTL bits which control which error types to
be reported is done over

  /sys/devices/system/machinecheck/
  ├── machinecheck0
  │   ├── bank0
  │   ├── bank1
  │   ├── bank10
  │   ├── bank11
  ...

sysfs nodes by writing the new bit mask of events to enable.

When the write is accepted, the kernel deletes all current timers and
reinits all banks.

Doing that in parallel can lead to initializing a timer which is already
armed and in the timer wheel, i.e., in use already:

  ODEBUG: init active (active state 0) object: ffff888063a28000 object
  type: timer_list hint: mce_timer_fn+0x0/0x240 arch/x86/kernel/cpu/mce/core.c:2642
  WARNING: CPU: 0 PID: 8120 at lib/debugobjects.c:514
  debug_print_object+0x1a0/0x2a0 lib/debugobjects.c:514

Fix that by grabbing the sysfs mutex as the rest of the MCA sysfs code
does.

Reported by: Yue Sun <samsun1006219@gmail.com>
Reported by: xingwei lee <xrivendell7@gmail.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Cc: <stable@kernel.org>
Link: https://lore.kernel.org/r/CAEkJfYNiENwQY8yV1LYJ9LjJs%2Bx_-PqMv98gKig55=2vbzffRw@mail.gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-19 09:23:10 +01:00
..
acpi x86/i8259: Skip probing when ACPI/MADT advertises PCAT compatibility 2024-11-18 10:58:32 +01:00
apic Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
cpu x86/mce: Make sure to grab mce_sysfs_mutex in set_bank() 2024-11-19 09:23:10 +01:00
fpu Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
kprobes x86/kprobes: fix incorrect return address calculation in kprobe_emulate_call_indirect 2024-11-18 12:12:08 +01:00
alternative.c x86/alternative: Make custom return thunk unconditional 2024-11-18 22:25:38 +01:00
amd_gart_64.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
amd_nb.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
apb_timer.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
aperture_64.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
apm_32.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
asm-offsets.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
asm-offsets_32.c x86/stackprotector/32: Make the canary into a regular percpu variable 2024-11-19 09:22:37 +01:00
asm-offsets_64.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
audit_64.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
bootflag.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
cc_platform.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
check.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
cpuid.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
crash.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
crash_core_32.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
crash_core_64.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
crash_dump_32.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
crash_dump_64.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
devicetree.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
doublefault_32.c x86/stackprotector/32: Make the canary into a regular percpu variable 2024-11-19 09:22:37 +01:00
dumpstack.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dumpstack_32.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dumpstack_64.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
e820.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
early-quirks.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
early_printk.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ebda.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
eisa.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
espfix_64.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ftrace.c x86/returnthunk: Allow different return thunks 2024-11-18 22:25:38 +01:00
ftrace_32.S Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ftrace_64.S Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
head32.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
head64.c x86/boot: Fix incorrect startup_gdt_descr.size 2024-11-18 11:42:47 +01:00
head_32.S x86/stackprotector/32: Make the canary into a regular percpu variable 2024-11-19 09:22:37 +01:00
head_64.S Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
hpet.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
hw_breakpoint.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
i8237.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
i8253.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
i8259.c x86/i8259: Skip probing when ACPI/MADT advertises PCAT compatibility 2024-11-18 10:58:32 +01:00
idt.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ima_arch.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
io_delay.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ioport.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
irq.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
irq_32.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
irq_64.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
irq_work.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
irqflags.S Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
irqinit.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
itmt.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
jailhouse.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
jump_label.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
kdebugfs.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
kexec-bzimage64.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
kgdb.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ksysfs.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
kvm.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
kvmclock.c x86/kvm: Do not try to disable kvmclock if it was not enabled 2024-11-18 12:12:48 +01:00
ldt.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
machine_kexec_32.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
machine_kexec_64.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
Makefile Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
mmconf-fam10h_64.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
module.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
mpparse.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
msr.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
nmi.c x86/bugs: Use ALTERNATIVE() instead of mds_user_clear static key 2024-11-19 09:22:40 +01:00
nmi_selftest.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
paravirt-spinlocks.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
paravirt.c x86/paravirt: Fix build due to __text_gen_insn() backport 2024-11-19 08:44:37 +01:00
paravirt_patch.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
pci-dma.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
pci-iommu_table.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
pci-swiotlb.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
pcspeaker.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
perf_regs.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
platform-quirks.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
pmem.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
probe_roms.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
process.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
process.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
process_32.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
process_64.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ptrace.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
pvclock.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
quirks.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
reboot.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
reboot_fixups_32.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
relocate_kernel_32.S Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
relocate_kernel_64.S Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
resource.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
rtc.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
setup.c x86/mm: Fix RESERVE_BRK() for older binutils 2024-11-18 10:58:45 +01:00
setup_percpu.c x86/stackprotector/32: Make the canary into a regular percpu variable 2024-11-19 09:22:37 +01:00
sev-es-shared.c x86/sev: Check for user-space IOIO pointing to kernel space 2024-11-08 11:26:09 +01:00
sev-es.c x86/sev: Check IOBM for IOIO exceptions from user-space 2024-11-08 11:26:09 +01:00
sev_verify_cbit.S Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
signal.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
signal_compat.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
smp.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
smpboot.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
stacktrace.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
static_call.c x86/returnthunk: Allow different return thunks 2024-11-18 22:25:38 +01:00
step.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
sys_ia32.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
sys_x86_64.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
sysfb.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
sysfb_efi.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
sysfb_simplefb.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
tboot.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
time.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
tls.c x86/stackprotector/32: Make the canary into a regular percpu variable 2024-11-19 09:22:37 +01:00
tls.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
topology.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
trace_clock.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
tracepoint.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
traps.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
tsc.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
tsc_msr.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
tsc_sync.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
umip.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
unwind_frame.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
unwind_guess.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
unwind_orc.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
uprobes.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
verify_cpu.S Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
vm86_32.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
vmlinux.lds.S x86: Fix .brk attribute in linker script 2024-11-18 10:58:46 +01:00
vsmp_64.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
x86_init.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00