Kirill A. Shutemov 74c228d20a x86/uaccess: Provide untagged_addr() and remove tags before address check ... untagged_addr() is a helper used by the core-mm to strip tag bits and get the address to the canonical shape based on rules of the current thread. It only handles userspace addresses. The untagging mask is stored in per-CPU variable and set on context switching to the task. The tags must not be included into check whether it's okay to access the userspace address. Strip tags in access_ok(). Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Tested-by: Alexander Potapenko <glider@google.com> Link: https://lore.kernel.org/all/20230312112612.31869-7-kirill.shutemov%40linux.intel.com		2023-03-16 13:08:39 -07:00
..
acpi	Changes in this cycle:	2023-02-20 18:32:55 -08:00
apic	x86/ioapic: Use irq_domain_create_hierarchy()	2023-02-13 19:31:24 +00:00
cpu	- Disable XSAVES on AMD Zen1 and Zen2 machines due to an erratum. No	2023-03-12 09:12:03 -07:00
fpu	Updates in this cycle:	2023-02-20 18:50:02 -08:00
kprobes	probes updates for 6.3:	2023-02-23 13:03:08 -08:00
.gitignore
alternative.c	x86/alternatives: Teach text_poke_bp() to patch Jcc.d32 instructions	2023-01-31 15:05:31 +01:00
amd_gart_64.c	x86/mm: Remove P*D_PAGE_MASK and P*D_PAGE_SIZE macros	2022-12-15 10:37:27 -08:00
amd_nb.c	x86/amd_nb: Add AMD PCI IDs for SMN communication	2022-07-20 17:35:40 +02:00
aperture_64.c	x86: Fix various duplicate-word comment typos	2022-08-15 19:17:52 +02:00
apm_32.c	efi: x86: Wire up IBT annotation in memory attributes table	2023-02-09 19:30:54 +01:00
asm-offsets_32.c
asm-offsets_64.c	x86: Fixup asm-offsets duplicate	2022-10-17 16:41:06 +02:00
asm-offsets.c	- Fixup comment typo	2023-02-25 09:11:30 -08:00
audit_64.c
bootflag.c
callthunks.c	x86/calldepth: Fix incorrect init section references	2022-12-27 12:51:58 +01:00
cfi.c	x86: Add support for CONFIG_CFI_CLANG	2022-09-26 10:13:16 -07:00
check.c
cpuid.c	driver core: make struct class.devnode() take a const *	2022-11-24 17:12:27 +01:00
crash_core_32.c
crash_core_64.c
crash_dump_32.c	vmcore: convert copy_oldmem_page() to take an iov_iter	2022-04-29 14:37:59 -07:00
crash_dump_64.c	use less confusing names for iov_iter direction initializers	2022-11-25 13:01:55 -05:00
crash.c	x86/crash: Disable virt in core NMI crash handler to avoid double shootdown	2023-01-24 10:05:21 -08:00
devicetree.c	x86/of: Add support for boot time interrupt delivery mode configuration	2022-12-02 14:57:14 +01:00
doublefault_32.c
dumpstack_32.c	x86/percpu: Move irq_stack variables next to current_task	2022-10-17 16:41:05 +02:00
dumpstack_64.c	x86/percpu: Move irq_stack variables next to current_task	2022-10-17 16:41:05 +02:00
dumpstack.c	- Yu Zhao's Multi-Gen LRU patches are here. They've been under test in	2022-10-10 17:53:04 -07:00
e820.c	x86/setup: Move duplicate boot_cpu_data definition out of the ifdeffery	2023-01-11 12:45:16 +01:00
early_printk.c	x86/earlyprintk: Clean up pciserial	2022-08-29 12:19:25 +02:00
early-quirks.c	drm/i915/rpl-p: Add PCI IDs	2022-04-19 17:14:09 -07:00
ebda.c
eisa.c
espfix_64.c	x86/espfix: Use get_random_long() rather than archrandom	2022-10-31 20:12:50 +01:00
ftrace_32.S
ftrace_64.S	Merge branch 'x86/urgent' into x86/core, to resolve conflict	2022-10-22 10:06:18 +02:00
ftrace.c	New Feature:	2022-12-17 14:06:53 -06:00
head32.c
head64.c	x86/mm: Remove P*D_PAGE_MASK and P*D_PAGE_SIZE macros	2022-12-15 10:37:27 -08:00
head_32.S	x86/asm/32: Remove setup_once()	2022-12-02 14:06:34 +01:00
head_64.S	x86/callthunks: Add call patching for call depth tracking	2022-10-17 16:41:13 +02:00
hpet.c	clocksource: Verify HPET and PMTMR when TSC unverified	2023-02-02 14:23:02 -08:00
hw_breakpoint.c	x86/amd: Cache debug register values in percpu variables	2023-01-31 20:09:26 +01:00
i8237.c
i8253.c
i8259.c	x86/i8259: Mark legacy PIC interrupts with IRQ_LEVEL	2023-01-16 17:24:56 +01:00
idt.c	x86/traps: Add #VE support for TDX guest	2022-04-07 08:27:51 -07:00
io_delay.c
ioport.c
irq_32.c	x86/percpu: Move irq_stack variables next to current_task	2022-10-17 16:41:05 +02:00
irq_64.c	x86/percpu: Move irq_stack variables next to current_task	2022-10-17 16:41:05 +02:00
irq_work.c
irq.c
irqflags.S
irqinit.c	x86/i8259: Mark legacy PIC interrupts with IRQ_LEVEL	2023-01-16 17:24:56 +01:00
itmt.c
jailhouse.c
jump_label.c	jump_label: make initial NOP patching the special case	2022-06-24 09:48:55 +02:00
kdebugfs.c	x86/boot: Fix memremap of setup_indirect structures	2022-03-09 12:49:44 +01:00
kexec-bzimage64.c	integrity-v6.0	2022-08-02 15:21:18 -07:00
kgdb.c
ksysfs.c	x86/boot: Fix memremap of setup_indirect structures	2022-03-09 12:49:44 +01:00
kvm.c	ARM64:	2022-12-15 11:12:21 -08:00
kvmclock.c	sched/clock/x86: Mark sched_clock() noinstr	2023-01-31 15:01:47 +01:00
ldt.c
machine_kexec_32.c
machine_kexec_64.c	x86/kexec: fix memory leak of elf header buffer	2022-06-01 15:57:16 -07:00
Makefile	x86/signal/compat: Move sigaction_compat_abi() to signal_64.c	2023-01-06 04:16:02 +01:00
mmconf-fam10h_64.c
module.c	Livepatching changes for 6.3	2023-02-23 14:00:10 -08:00
mpparse.c
msr.c	driver core: make struct class.devnode() take a const *	2022-11-24 17:12:27 +01:00
nmi_selftest.c
nmi.c	ARM:	2023-02-25 11:30:21 -08:00
paravirt-spinlocks.c
paravirt.c	- Cache the AMD debug registers in per-CPU variables to avoid MSR writes	2023-02-21 14:51:40 -08:00
pci-dma.c	swiotlb: merge swiotlb-xen initialization into swiotlb	2022-04-18 07:21:13 +02:00
pcspeaker.c
perf_regs.c
platform-quirks.c
pmem.c	x86/pmem: Fix platform-device leak in error path	2022-06-20 18:01:16 +02:00
probe_roms.c	x86/kernel: Validate ROM memory before accessing when SEV-SNP is active	2022-04-06 13:23:09 +02:00
process_32.c	x86/resctl: fix scheduler confusion with 'current'	2023-03-08 11:48:11 -08:00
process_64.c	x86: Allow atomic MM_CONTEXT flags setting	2023-03-16 13:08:39 -07:00
process.c	x86/uaccess: Provide untagged_addr() and remove tags before address check	2023-03-16 13:08:39 -07:00
process.h
ptrace.c	x86: Improve formatting of user_regset arrays	2022-11-01 15:36:52 -07:00
pvclock.c	sched/clock/x86: Mark sched_clock() noinstr	2023-01-31 15:01:47 +01:00
quirks.c
reboot_fixups_32.c
reboot.c	x86/reboot: Disable virtualization in an emergency if SVM is supported	2023-01-24 10:05:22 -08:00
relocate_kernel_32.S	x86/kexec: Disable RET on kexec	2022-07-09 13:12:32 +02:00
relocate_kernel_64.S	x86/callthunks: Add call patching for call depth tracking	2022-10-17 16:41:13 +02:00
resource.c	x86/PCI: Tidy E820 removal messages	2022-12-10 10:33:11 -06:00
rethook.c	x86,rethook: Fix arch_rethook_trampoline() to generate a complete pt_regs	2022-03-28 19:38:51 -07:00
rtc.c	x86/rtc: Simplify PNP ids check	2023-01-06 04:22:34 +01:00
setup_percpu.c	- Add the call depth tracking mitigation for Retbleed which has	2022-12-14 15:03:00 -08:00
setup.c	x86/setup: Move duplicate boot_cpu_data definition out of the ifdeffery	2023-01-11 12:45:16 +01:00
sev_verify_cbit.S
sev-shared.c	Revert "x86/sev: Expose sev_es_ghcb_hv_call() for use by HyperV"	2022-07-27 18:09:13 +02:00
sev.c	x86/insn: Avoid namespace clash by separating instruction decoder MMIO type from MMIO trace type	2023-01-03 18:46:06 +01:00
signal_32.c	- Cache the AMD debug registers in per-CPU variables to avoid MSR writes	2023-02-21 14:51:40 -08:00
signal_64.c	x86/signal/compat: Move sigaction_compat_abi() to signal_64.c	2023-01-06 04:16:02 +01:00
signal.c	x86/signal: Fix the value returned by strict_sas_size()	2023-01-15 09:54:27 +01:00
smp.c	x86/reboot: Disable SVM, not just VMX, when stopping CPUs	2023-01-24 10:05:22 -08:00
smpboot.c	x86/hotplug: Remove incorrect comment about mwait_play_dead()	2023-02-14 23:44:34 +01:00
stacktrace.c	x86: remove __range_not_ok()	2022-02-25 09:36:05 +01:00
static_call.c	x86/static_call: Add support for Jcc tail-calls	2023-01-31 15:05:31 +01:00
step.c	ptrace: Reimplement PTRACE_KILL by always sending SIGKILL	2022-05-11 14:34:28 -05:00
sys_ia32.c
sys_x86_64.c	x86/mm: Cleanup the control_va_addr_alignment() __setup handler	2022-05-04 18:20:42 +02:00
tboot.c	mm: remove rb tree.	2022-09-26 19:46:16 -07:00
time.c
tls.c	x86/gsseg: Move load_gs_index() to its own new header file	2023-01-12 13:06:36 +01:00
tls.h
topology.c	x86/cpu: Switch to cpu_feature_enabled() for X86_FEATURE_XENPV	2022-11-22 16:18:19 +01:00
trace_clock.c
trace.c
tracepoint.c	x86/traceponit: Fix comment about irq vector tracepoints	2022-05-26 22:03:52 -04:00
traps.c	- Add the call depth tracking mitigation for Retbleed which has	2022-12-14 15:03:00 -08:00
tsc_msr.c
tsc_sync.c
tsc.c	Updates for timekeeping, timers and clockevent/source drivers:	2023-02-21 09:45:13 -08:00
umip.c
unwind_frame.c	x86: kmsan: don't instrument stack walking functions	2022-10-03 14:03:25 -07:00
unwind_guess.c
unwind_orc.c	x86/unwind/orc: Add 'signal' field to ORC metadata	2023-02-11 12:37:51 +01:00
uprobes.c	uprobes/x86: Allow to probe a NOP instruction with 0x66 prefix	2022-12-05 11:55:18 +01:00
verify_cpu.S
vm86_32.c	x86/32: Remove lazy GS macros	2022-04-14 14:09:43 +02:00
vmlinux.lds.S	objtool/idle: Validate __cpuidle code as noinstr	2023-01-13 11:48:15 +01:00
vsmp_64.c
x86_init.c	x86/boot: Skip realmode init code when running as Xen PV guest	2022-11-25 12:05:22 +01:00