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linux-stable/arch/x86/boot
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Joerg Roedel 11b975cb82 x86/sev: Check for user-space IOIO pointing to kernel space 
Upstream commit: 63e44bc52047f182601e7817da969a105aa1f721

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: 597cfe48212a ("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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-10-25 12:16:10 +02:00
..
compressed
x86/sev: Check for user-space IOIO pointing to kernel space
2023-10-25 12:16:10 +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
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 497
2019-06-19 17:09:53 +02:00
apm.c
x86/boot: Fix comment spelling
2020-03-17 20:52:52 +01:00
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
x86/asm: Do not annotate functions with GLOBAL
2019-10-18 11:25:58 +02:00
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
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
early_serial_console.c
x86: Clean up 'sizeof x' => 'sizeof(x)'
2018-10-29 07:13:28 +01:00
edd.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 497
2019-06-19 17:09:53 +02:00
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
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 497
2019-06-19 17:09:53 +02:00
mkcpustr.c
x86/cpu: Print VMX flags in /proc/cpuinfo using VMX_FEATURES_*
2020-01-13 18:36:02 +01:00
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
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 497
2019-06-19 17:09:53 +02:00
pmjump.S
x86/asm: Do not annotate functions with GLOBAL
2019-10-18 11:25:58 +02:00
printf.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 497
2019-06-19 17:09:53 +02:00
regs.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 83
2019-05-24 17:37:52 +02:00
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
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 48
2019-05-24 17:27:13 +02:00
video-bios.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 497
2019-06-19 17:09:53 +02:00
video-mode.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 497
2019-06-19 17:09:53 +02:00
video-vesa.c
sysfb: Enable boot time VESA graphic mode selection
2022-03-04 20:55:33 +01:00
video-vga.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 497
2019-06-19 17:09:53 +02:00
video.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 497
2019-06-19 17:09:53 +02:00
video.h
treewide: Convert macro and uses of __section(foo) to __section("foo")
2020-10-25 14:51:49 -07:00