linux-stable/arch/x86/kernel
Kirill A. Shutemov 70539e9bc0 x86/traps: Fix load_unaligned_zeropad() handling for shared TDX memory
[ Upstream commit 9f91164061 ]

Commit c4e34dd99f ("x86: simplify load_unaligned_zeropad()
implementation") changes how exceptions around load_unaligned_zeropad()
handled.  The kernel now uses the fault_address in fixup_exception() to
verify the address calculations for the load_unaligned_zeropad().

It works fine for #PF, but breaks on #VE since no fault address is
passed down to fixup_exception().

Propagating ve_info.gla down to fixup_exception() resolves the issue.

See commit 1e7769653b ("x86/tdx: Handle load_unaligned_zeropad()
page-cross to a shared page") for more context.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Reported-by: Michael Kelley <mikelley@microsoft.com>
Fixes: c4e34dd99f ("x86: simplify load_unaligned_zeropad() implementation")
Acked-by: Dave Hansen <dave.hansen@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-08-03 10:25:52 +02:00
..
acpi x86 APIC updates: 2023-04-25 11:39:45 -07:00
apic x86/apic: Fix kernel panic when booting with intremap=off and x2apic_phys 2023-06-19 20:59:40 +02:00
cpu x86/cpu/amd: Add a Zenbleed fix 2023-07-24 18:56:41 +02:00
fpu fork, vhost: Use CLONE_THREAD to fix freezer/ps regression 2023-06-01 17:15:33 -04:00
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 PCI ID for family 19h model 78h 2023-05-08 11:25:19 +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.c x86/smpboot: Remove initial_stack on 64-bit 2023-03-21 13:35:53 +01:00
asm-offsets_32.c
asm-offsets_64.c x86: Fixup asm-offsets duplicate 2022-10-17 16:41:06 +02:00
audit_64.c
bootflag.c
callthunks.c module: replace module_layout with module_memory 2023-03-09 12:55:15 -08:00
cfi.c x86: Add support for CONFIG_CFI_CLANG 2022-09-26 10:13:16 -07:00
check.c
cpuid.c driver core: class: remove module * from class_create() 2023-03-17 15:16:33 +01:00
crash.c x86/crash: Disable virt in core NMI crash handler to avoid double shootdown 2023-01-24 10:05:21 -08:00
crash_core_32.c
crash_core_64.c
crash_dump_32.c
crash_dump_64.c use less confusing names for iov_iter direction initializers 2022-11-25 13:01:55 -05:00
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.c x86/show_trace_log_lvl: Ensure stack pointer is aligned, again 2023-05-16 06:31:04 -07:00
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
e820.c x86/setup: Move duplicate boot_cpu_data definition out of the ifdeffery 2023-01-11 12:45:16 +01:00
early-quirks.c
early_printk.c x86/earlyprintk: Clean up pciserial 2022-08-29 12:19:25 +02:00
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.c New Feature: 2022-12-17 14:06:53 -06:00
ftrace_32.S ftrace: selftest: remove broken trace_direct_tramp 2023-03-21 13:59:29 -04:00
ftrace_64.S Objtool changes for v6.4: 2023-04-28 14:02:54 -07:00
head32.c x86/head: Mark *_start_kernel() __noreturn 2023-04-14 17:31:24 +02:00
head64.c x86/head: Mark *_start_kernel() __noreturn 2023-04-14 17:31:24 +02:00
head_32.S x86/asm/32: Remove setup_once() 2022-12-02 14:06:34 +01:00
head_64.S x86/head/64: Switch to KERNEL_CS as soon as new GDT is installed 2023-06-02 16:59:57 -07:00
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
io_delay.c
ioport.c
irq.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
irqflags.S
irqinit.c x86/i8259: Mark legacy PIC interrupts with IRQ_LEVEL 2023-01-16 17:24:56 +01:00
itmt.c x86: Simplify one-level sysctl registration for itmt_kern_table 2023-03-22 11:47:21 -07:00
jailhouse.c
jump_label.c
kdebugfs.c
kexec-bzimage64.c docs: move x86 documentation into Documentation/arch/ 2023-03-30 12:58:51 -06:00
kgdb.c
ksysfs.c
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: remove unnecessary arch_kexec_kernel_image_load() 2023-04-08 13:45:38 -07:00
Makefile rethook, fprobe: do not trace rethook related functions 2023-05-18 07:08:01 +09:00
mmconf-fam10h_64.c
module.c module: replace module_layout with module_memory 2023-03-09 12:55:15 -08:00
mpparse.c
msr.c driver core: class: remove module * from class_create() 2023-03-17 15:16:33 +01:00
nmi.c ARM: 2023-02-25 11:30:21 -08:00
nmi_selftest.c
paravirt-spinlocks.c
paravirt.c x86/paravirt: Convert simple paravirt functions to asm 2023-03-17 13:29:47 +01:00
pci-dma.c docs: move x86 documentation into Documentation/arch/ 2023-03-30 12:58:51 -06:00
pcspeaker.c
perf_regs.c
platform-quirks.c
pmem.c
probe_roms.c
process.c x86/smp: Dont access non-existing CPUID leaf 2023-07-01 13:12:37 +02:00
process.h
process_32.c x86/resctl: fix scheduler confusion with 'current' 2023-03-08 11:48:11 -08:00
process_64.c IOMMU Updates for Linux 6.4 2023-04-30 13:00:38 -07:00
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.c cpu: Mark nmi_panic_self_stop() __noreturn 2023-04-14 17:31:26 +02:00
reboot_fixups_32.c
relocate_kernel_32.S
relocate_kernel_64.S x86,objtool: Split UNWIND_HINT_EMPTY in two 2023-03-23 23:18:58 +01:00
resource.c x86/PCI: Tidy E820 removal messages 2022-12-10 10:33:11 -06:00
rethook.c
rtc.c x86/rtc: Simplify PNP ids check 2023-01-06 04:22:34 +01:00
setup.c x86/mtrr: Support setting MTRR state for software defined MTRRs 2023-07-19 16:35:18 +02:00
setup_percpu.c - Add the call depth tracking mitigation for Retbleed which has 2022-12-14 15:03:00 -08:00
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/sev: Fix calculation of end address based on number of pages 2023-07-19 16:35:08 +02:00
sev_verify_cbit.S
signal.c x86/signal: Fix the value returned by strict_sas_size() 2023-01-15 09:54:27 +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
smp.c x86/smp: Cure kexec() vs. mwait_play_dead() breakage 2023-07-01 13:12:38 +02:00
smpboot.c x86/smp: Cure kexec() vs. mwait_play_dead() breakage 2023-07-01 13:12:38 +02:00
stacktrace.c
static_call.c x86/static_call: Add support for Jcc tail-calls 2023-01-31 15:05:31 +01:00
step.c
sys_ia32.c
sys_x86_64.c
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.c
trace_clock.c
tracepoint.c
traps.c x86/traps: Fix load_unaligned_zeropad() handling for shared TDX memory 2023-08-03 10:25:52 +02:00
tsc.c Updates for timekeeping, timers and clockevent/source drivers: 2023-02-21 09:45:13 -08:00
tsc_msr.c
tsc_sync.c
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 ELF section with ORC version identifier 2023-06-16 17:17:42 +02:00
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
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/mm: Allow guest.enc_status_change_prepare() to fail 2023-07-19 16:35:14 +02:00