John David Anglin 89f686a0fb parisc: Revise __get_user() to probe user read access ... Because of the way read access support is implemented, read access interruptions are only triggered at privilege levels 2 and 3. The kernel executes at privilege level 0, so __get_user() never triggers a read access interruption (code 26). Thus, it is currently possible for user code to access a read protected address via a system call. Fix this by probing read access rights at privilege level 3 (PRIV_USER) and setting __gu_err to -EFAULT (-14) if access isn't allowed. Note the cmpiclr instruction does a 32-bit compare because COND macro doesn't work inside asm. Signed-off-by: John David Anglin <dave.anglin@bell.net> Signed-off-by: Helge Deller <deller@gmx.de> Cc: stable@vger.kernel.org # v5.12+		2025-07-25 22:45:24 +02:00
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alternative.h	parisc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers	2025-05-04 20:46:27 +02:00
asm-offsets.h	…
asmregs.h	…
assembly.h	parisc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers	2025-05-04 20:46:27 +02:00
atomic.h	…
barrier.h	parisc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers	2025-05-04 20:46:27 +02:00
bitops.h	…
bug.h	…
cache.h	parisc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers	2025-05-04 20:46:27 +02:00
cacheflush.h	…
cachetype.h	…
checksum.h	…
cmpxchg.h	…
compat.h	…
compat_ucontext.h	…
current.h	parisc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers	2025-05-04 20:46:27 +02:00
delay.h	…
dma-mapping.h	…
dma.h	…
dwarf.h	parisc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers	2025-05-04 20:46:27 +02:00
eisa_bus.h	…
eisa_eeprom.h	…
elf.h	…
extable.h	…
fixmap.h	parisc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers	2025-05-04 20:46:27 +02:00
floppy.h	…
ftrace.h	parisc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers	2025-05-04 20:46:27 +02:00
futex.h	…
grfioctl.h	…
hardirq.h	…
hardware.h	…
hash.h	…
hugetlb.h	mm: hugetlb: Add huge page size param to huge_ptep_get_and_clear()	2025-02-27 17:40:57 +00:00
io.h	- The 6 patch series "Enable strict percpu address space checks" from	2025-04-01 09:29:18 -07:00
irq.h	…
irqflags.h	…
jump_label.h	parisc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers	2025-05-04 20:46:27 +02:00
kbdleds.h	…
kexec.h	parisc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers	2025-05-04 20:46:27 +02:00
kfence.h	…
kgdb.h	parisc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers	2025-05-04 20:46:27 +02:00
kprobes.h	…
ldcw.h	…
led.h	…
linkage.h	parisc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers	2025-05-04 20:46:27 +02:00
mman.h	…
mmu.h	…
mmu_context.h	…
mmzone.h	…
module.h	…
page.h	parisc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers	2025-05-04 20:46:27 +02:00
parisc-device.h	…
parport.h	…
pci.h	…
pdc.h	parisc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers	2025-05-04 20:46:27 +02:00
pdc_chassis.h	…
pdcpat.h	parisc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers	2025-05-04 20:46:27 +02:00
perf.h	…
perf_event.h	…
pgalloc.h	mm: pass mm down to pagetable_{pte,pmd}_ctor	2025-05-11 17:48:21 -07:00
pgtable.h	parisc: Define and use set_pte_at()	2025-07-25 22:45:23 +02:00
prefetch.h	parisc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers	2025-05-04 20:46:27 +02:00
processor.h	parisc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers	2025-05-04 20:46:27 +02:00
psw.h	parisc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers	2025-05-04 20:46:27 +02:00
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ropes.h	…
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runway.h	…
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shmparam.h	…
signal.h	parisc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers	2025-05-04 20:46:27 +02:00
smp.h	parisc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers	2025-05-04 20:46:27 +02:00
socket.h	…
sparsemem.h	…
special_insns.h	parisc: Check region is readable by user in raw_copy_from_user()	2025-07-25 22:45:23 +02:00
spinlock.h	…
spinlock_types.h	parisc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers	2025-05-04 20:46:27 +02:00
string.h	…
superio.h	…
switch_to.h	…
syscall.h	syscall.h: introduce syscall_set_nr()	2025-05-11 17:48:15 -07:00
text-patching.h	…
thread_info.h	parisc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers	2025-05-04 20:46:27 +02:00
timex.h	…
tlb.h	…
tlbflush.h	…
topology.h	…
traps.h	parisc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers	2025-05-04 20:46:27 +02:00
uaccess.h	parisc: Revise __get_user() to probe user read access	2025-07-25 22:45:24 +02:00
ucontext.h	…
unistd.h	parisc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers	2025-05-04 20:46:27 +02:00
unwind.h	…
vdso.h	parisc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers	2025-05-04 20:46:27 +02:00
video.h	…
vmalloc.h	…