Joerg Roedel 63e44bc520 x86/sev: Check for user-space IOIO pointing to kernel space ... Check the memory operand of INS/OUTS before emulating the instruction. The #VC exception can get raised from user-space, but the memory operand can be manipulated to access kernel memory before the emulation actually begins and after the exception handler has run. [ bp: Massage commit message. ] Fixes: 597cfe4821 ("x86/boot/compressed/64: Setup a GHCB-based VC Exception handler") Reported-by: Tom Dohrmann <erbse.13@gmx.de> Signed-off-by: Joerg Roedel <jroedel@suse.de> Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> Cc: <stable@kernel.org>		2023-10-17 10:58:16 +02:00
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compressed	x86/sev: Check for user-space IOIO pointing to kernel space	2023-10-17 10:58:16 +02:00
tools	x86/efi: Make the deprecated EFI handover protocol optional	2022-11-24 08:57:41 +01:00
.gitignore	x86/boot: Modernize genimage script; hdimage+EFI support	2021-05-10 12:27:50 +02:00
a20.c
apm.c
bioscall.S	x86/boot: Avoid using Intel mnemonics in AT&T syntax asm	2023-01-10 13:03:23 +01:00
bitops.h	x86/boot: Remove superfluous type casting from arch/x86/boot/bitops.h	2022-08-15 19:17:43 +02:00
boot.h	- Add a "make x86_debug.config" target which enables a bunch of useful	2022-05-23 18:15:44 -07:00
cmdline.c	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
copy.S
cpu.c	x86/cpu: Remove X86_FEATURE_NAMES	2023-05-15 20:03:08 +02:00
cpucheck.c	x86/boot: Use MSR read/write helpers instead of inline assembly	2022-04-06 13:02:13 +02:00
cpuflags.c	x86/boot: Remove x86_32 PIC using %ebx workaround	2022-11-29 16:26:53 +01:00
cpuflags.h	x86/tdx: Detect TDX at early kernel decompression time	2022-04-07 08:27:51 -07:00
ctype.h
early_serial_console.c
edd.c
genimage.sh	x86/boot: Fix make hdimage with older versions of mtools	2021-09-29 11:06:47 +02:00
header.S	docs: move x86 documentation into Documentation/arch/	2023-03-30 12:58:51 -06:00
install.sh	kbuild: factor out the common installation code into scripts/install.sh	2022-05-11 21:45:53 +09:00
io.h	x86/boot: Port I/O: Allow to hook up alternative helpers	2022-04-07 08:27:52 -07:00
main.c	- Add a "make x86_debug.config" target which enables a bunch of useful	2022-05-23 18:15:44 -07:00
Makefile	x86/cpu: Remove X86_FEATURE_NAMES	2023-05-15 20:03:08 +02:00
memory.c
mkcpustr.c
msr.h	x86/boot: Introduce helpers for MSR reads/writes	2022-04-06 12:59:17 +02:00
mtools.conf.in	x86/boot: Fix make hdimage with older versions of mtools	2021-09-29 11:06:47 +02:00
pm.c
pmjump.S
printf.c
regs.c
setup.ld	x86/boot: Add .text.* to setup.ld	2020-08-14 12:52:35 +02:00
string.c	x86/boot: Repair kernel-doc for boot_kstrtoul()	2022-11-02 10:20:02 +01:00
string.h	x86/boot/string: Add missing function prototypes	2021-12-10 19:49:06 +01:00
tty.c	treewide: Convert macro and uses of __section(foo) to __section("foo")	2020-10-25 14:51:49 -07:00
version.c	kbuild: build init/built-in.a just once	2022-09-29 04:40:15 +09:00
vesa.h
video-bios.c
video-mode.c
video-vesa.c	sysfb: Enable boot time VESA graphic mode selection	2022-03-04 20:55:33 +01:00
video-vga.c
video.c
video.h	treewide: Convert macro and uses of __section(foo) to __section("foo")	2020-10-25 14:51:49 -07:00