Andy Lutomirski 6164331d15 x86/fpu: Rewrite xfpregs_set() ... xfpregs_set() was incomprehensible. Almost all of the complexity was due to trying to support nonsensically sized writes or -EFAULT errors that would have partially or completely overwritten the destination before failing. Nonsensically sized input would only have been possible using PTRACE_SETREGSET on REGSET_XFP. Fortunately, it appears (based on Debian code search results) that no one uses that API at all, let alone with the wrong sized buffer. Failed user access can be handled more cleanly by first copying to kernel memory. Just rewrite it to require sensible input. Signed-off-by: Andy Lutomirski <luto@kernel.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Borislav Petkov <bp@suse.de> Link: https://lkml.kernel.org/r/20210623121452.504234607@linutronix.de		2021-06-23 17:49:46 +02:00
..
acpi	Trivial cleanups and fixes all over the place.	2021-04-26 09:25:47 -07:00
apic	x86/apic: Mark _all_ legacy interrupts when IO/APIC is missing	2021-05-29 11:41:14 +02:00
cpu	x86/fpu: Get rid of fpu__get_supported_xfeatures_mask()	2021-06-23 17:49:46 +02:00
fpu	x86/fpu: Rewrite xfpregs_set()	2021-06-23 17:49:46 +02:00
kprobes	- turn the stack canary into a normal __percpu variable on 32-bit which	2021-04-27 17:45:09 -07:00
.gitignore
alternative.c	x86/alternative: Optimize single-byte NOPs at an arbitrary position	2021-06-03 16:33:09 +02:00
amd_gart_64.c
amd_nb.c	x86: Fix various typos in comments, take #2	2021-03-21 23:50:28 +01:00
aperture_64.c
apm_32.c	x86: Fix various typos in comments, take #2	2021-03-21 23:50:28 +01:00
asm-offsets.c	x86/paravirt: Switch iret pvops to ALTERNATIVE	2021-03-11 19:58:54 +01:00
asm-offsets_32.c	x86/stackprotector/32: Make the canary into a regular percpu variable	2021-03-08 13:19:05 +01:00
asm-offsets_64.c	x86/xen: Drop USERGS_SYSRET64 paravirt call	2021-02-10 12:32:07 +01:00
audit_64.c
bootflag.c
check.c
cpuid.c	smp: Cleanup smp_call_function*()	2020-11-24 16:47:49 +01:00
crash.c	Devicetree updates for v5.13:	2021-04-28 15:50:24 -07:00
crash_core_32.c
crash_core_64.c
crash_dump_32.c	x86/crashdump/32: Simplify copy_oldmem_page()	2020-11-24 14:42:09 +01:00
crash_dump_64.c
devicetree.c
doublefault_32.c	x86/stackprotector/32: Make the canary into a regular percpu variable	2021-03-08 13:19:05 +01:00
dumpstack.c	- Remove all uses of TIF_IA32 and TIF_X32 and reclaim the two bits in the end	2020-12-14 13:45:26 -08:00
dumpstack_32.c
dumpstack_64.c	x86/irq/64: Adjust the per CPU irq stack pointer by 8	2021-02-10 23:34:14 +01:00
e820.c	Power management updates for 5.13-rc1	2021-04-26 15:10:25 -07:00
early-quirks.c	x86/gpu: Add Alderlake-S stolen memory support	2021-01-26 06:55:09 -08:00
early_printk.c
ebda.c
eisa.c
espfix_64.c
ftrace.c	x86: Remove dynamic NOP selection	2021-03-15 16:24:59 +01:00
ftrace_32.S
ftrace_64.S	x86/ftrace: Support objtool vmlinux.o validation in ftrace_64.S	2021-01-26 11:33:02 -06:00
head32.c
head64.c	x86/sev-es: Rename sev-es.{ch} to sev.{ch}	2021-05-10 07:40:27 +02:00
head_32.S	x86/stackprotector/32: Make the canary into a regular percpu variable	2021-03-08 13:19:05 +01:00
head_64.S	- Fix the vmlinux size check on 64-bit along with adding useful clarifications on the topic	2020-12-14 13:54:50 -08:00
hpet.c
hw_breakpoint.c	x86/debug: Prevent data breakpoints on cpu_dr7	2021-02-05 20:13:12 +01:00
i8237.c
i8253.c
i8259.c
idt.c	x86: Fix various typos in comments	2021-03-18 15:31:53 +01:00
io_delay.c
ioport.c
irq.c	x86: Fix various typos in comments	2021-03-18 15:31:53 +01:00
irq_32.c	softirq: Move do_softirq_own_stack() to generic asm header	2021-02-10 23:34:16 +01:00
irq_64.c	x86/softirq/64: Inline do_softirq_own_stack()	2021-02-10 23:34:17 +01:00
irq_work.c
irqflags.S	x86/pv: Rework arch_local_irq_restore() to not use popf	2021-02-10 12:36:45 +01:00
irqinit.c
itmt.c
jailhouse.c
jump_label.c	x86: Remove dynamic NOP selection	2021-03-15 16:24:59 +01:00
kdebugfs.c
kexec-bzimage64.c	x86: Use ELF fields defined in 'struct kimage'	2021-03-08 12:06:29 -07:00
kgdb.c	x86: Fix various typos in comments	2021-03-18 15:31:53 +01:00
ksysfs.c
kvm.c	x86/kvm: Unify kvm_pv_guest_cpu_reboot() with kvm_guest_cpu_offline()	2021-05-07 06:06:11 -04:00
kvmclock.c	x86/kvm: Disable all PV features on crash	2021-05-07 06:06:10 -04:00
ldt.c	x86/ldt: Use tlb_gather_mmu_fullmm() when freeing LDT page-tables	2021-01-29 20:02:29 +01:00
machine_kexec_32.c
machine_kexec_64.c	Devicetree updates for v5.13:	2021-04-28 15:50:24 -07:00
Makefile	x86/sev-es: Rename sev-es.{ch} to sev.{ch}	2021-05-10 07:40:27 +02:00
mmconf-fam10h_64.c	x86/msr: Rename MSR_K8_SYSCFG to MSR_AMD64_SYSCFG	2021-05-10 07:51:38 +02:00
module.c	x86/build: Treat R_386_PLT32 relocation as R_386_PC32	2021-01-28 12:24:06 +01:00
mpparse.c
msr.c	x86/MSR: Filter MSR writes through X86_IOC_WRMSR_REGS ioctl too	2021-01-27 19:06:47 +01:00
nmi.c	x86/sev-es: Rename sev-es.{ch} to sev.{ch}	2021-05-10 07:40:27 +02:00
nmi_selftest.c
paravirt-spinlocks.c	x86/paravirt: Add new features for paravirt patching	2021-03-11 19:51:49 +01:00
paravirt.c	The x86 MM changes in this cycle were:	2021-04-29 11:41:43 -07:00
pci-dma.c
pci-iommu_table.c	x86: Remove definition of DEBUG	2021-01-15 08:23:10 +01:00
pci-swiotlb.c
pcspeaker.c
perf_regs.c	- Remove all uses of TIF_IA32 and TIF_X32 and reclaim the two bits in the end	2020-12-14 13:45:26 -08:00
platform-quirks.c
pmem.c
probe_roms.c
process.c	x86/process: setup io_threads more like normal user space threads	2021-05-05 17:47:41 -06:00
process.h
process_32.c
process_64.c	x86/irq: Sanitize irq stack tracking	2021-02-10 23:34:13 +01:00
ptrace.c	x86/ptrace: Clean up PTRACE_GETREGS/PTRACE_PUTREGS regset selection	2021-02-04 12:33:15 +01:00
pvclock.c	x86: Fix various typos in comments	2021-03-18 15:31:53 +01:00
quirks.c
reboot.c	x86:	2021-02-21 13:31:43 -08:00
reboot_fixups_32.c
relocate_kernel_32.S	x86: Fix various typos in comments, take #2	2021-03-21 23:50:28 +01:00
relocate_kernel_64.S	x86: Fix various typos in comments, take #2	2021-03-21 23:50:28 +01:00
resource.c
rtc.c
setup.c	x86/setup: Always reserve the first 1M of RAM	2021-06-03 19:57:55 +02:00
setup_percpu.c	x86/stackprotector/32: Make the canary into a regular percpu variable	2021-03-08 13:19:05 +01:00
sev-shared.c	x86/sev-es: Invalidate the GHCB after completing VMGEXIT	2021-05-18 07:06:29 +02:00
sev.c	x86/sev-es: Use __put_user()/__get_user() for data accesses	2021-05-19 18:45:37 +02:00
sev_verify_cbit.S
signal.c	x86/signal: Detect and prevent an alternate signal stack overflow	2021-05-19 12:40:30 +02:00
signal_compat.c	signal: Deliver all of the siginfo perf data in _perf	2021-05-18 16:20:54 -05:00
smp.c	x86: Fix various typos in comments, take #2	2021-03-21 23:50:28 +01:00
smpboot.c	x86, sched: Fix the AMD CPPC maximum performance value on certain AMD Ryzen generations	2021-05-13 12:10:24 +02:00
stacktrace.c	stacktrace: Move documentation for arch_stack_walk_reliable() to header	2021-03-10 15:52:31 +01:00
static_call.c	x86: Remove dynamic NOP selection	2021-03-15 16:24:59 +01:00
step.c	entry: Ensure trap after single-step on system call return	2021-02-06 00:21:42 +01:00
sys_ia32.c
sys_x86_64.c	x86/mm: Refine mmap syscall implementation	2021-01-05 19:07:42 +01:00
sysfb.c
sysfb_efi.c	x86: Fix various typos in comments	2021-03-18 15:31:53 +01:00
sysfb_simplefb.c
tboot.c	x86/boot/tboot: Avoid Wstringop-overread-warning	2021-03-23 00:16:13 +01:00
time.c
tls.c	x86/stackprotector/32: Make the canary into a regular percpu variable	2021-03-08 13:19:05 +01:00
tls.h
topology.c	x86: Fix various typos in comments	2021-03-18 15:31:53 +01:00
trace_clock.c
tracepoint.c
traps.c	- turn the stack canary into a normal __percpu variable on 32-bit which	2021-04-27 17:45:09 -07:00
tsc.c	Trivial cleanups and fixes all over the place.	2021-04-26 09:25:47 -07:00
tsc_msr.c
tsc_sync.c	x86: Fix various typos in comments, take #2	2021-03-21 23:50:28 +01:00
umip.c	- turn the stack canary into a normal __percpu variable on 32-bit which	2021-04-27 17:45:09 -07:00
unwind_frame.c
unwind_guess.c
unwind_orc.c	x86/unwind/orc: Silence warnings caused by missing ORC data	2021-03-06 13:09:45 +01:00
uprobes.c	x86/uprobes: Convert to insn_decode()	2021-03-15 12:05:03 +01:00
verify_cpu.S
vm86_32.c	x86/vm86/32: Remove VM86_SCREEN_BITMAP support	2021-01-21 20:08:53 +01:00
vmlinux.lds.S
vsmp_64.c
x86_init.c