Josh Poimboeuf 4d7f72b6e1 x86/speculation: Fill RSB on vmexit for IBRS ... commit 9756bba284 upstream. Prevent RSB underflow/poisoning attacks with RSB. While at it, add a bunch of comments to attempt to document the current state of tribal knowledge about RSB attacks and what exactly is being mitigated. Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Borislav Petkov <bp@suse.de> Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com> Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2022-07-25 11:26:49 +02:00
..
boot	x86: Prepare asm files for straight-line-speculation	2022-07-25 11:26:28 +02:00
configs	x86/kbuild: Enable CONFIG_KALLSYMS_ALL=y in the defconfigs	2022-01-27 10:54:21 +01:00
crypto	crypto: x86/poly1305 - Fixup SLS	2022-07-25 11:26:32 +02:00
entry	x86/speculation: Fix RSB filling with CONFIG_RETPOLINE=n	2022-07-25 11:26:46 +02:00
events	perf/amd/ibs: Use interrupt regs ip for stack unwinding	2022-06-09 10:21:07 +02:00
hyperv	x86/hyperv: Fix NULL deref in set_hv_tscchange_cb() if Hyper-V setup fails	2021-11-26 10:39:19 +01:00
ia32	x86: remove address space overrides using set_fs()	2020-09-08 22:21:36 -04:00
include	x86/speculation: Fill RSB on vmexit for IBRS	2022-07-25 11:26:49 +02:00
kernel	x86/speculation: Fill RSB on vmexit for IBRS	2022-07-25 11:26:49 +02:00
kvm	x86/speculation: Fill RSB on vmexit for IBRS	2022-07-25 11:26:49 +02:00
lib	x86: Add magic AMD return-thunk	2022-07-25 11:26:40 +02:00
math-emu	x86: Prepare asm files for straight-line-speculation	2022-07-25 11:26:28 +02:00
mm	objtool: Update Retpoline validation	2022-07-25 11:26:44 +02:00
net	x86/bpf: Use alternative RET encoding	2022-07-25 11:26:38 +02:00
oprofile
pci	x86/pci/xen: Disable PCI/MSI[-X] masking for XEN_HVM guests	2022-05-09 09:05:00 +02:00
platform	x86: Prepare asm files for straight-line-speculation	2022-07-25 11:26:28 +02:00
power	x86: Prepare asm files for straight-line-speculation	2022-07-25 11:26:28 +02:00
purgatory	treewide: Convert macro and uses of __section(foo) to __section("foo")	2020-10-25 14:51:49 -07:00
ras	treewide: replace '---help---' in Kconfig files with 'help'	2020-06-14 01:57:21 +09:00
realmode	x86/mm: Flush global TLB when switching to trampoline page-table	2022-01-27 10:54:14 +01:00
tools	x86/tools: Fix objdump version check again	2021-08-18 08:59:15 +02:00
um	x86: Prepare asm files for straight-line-speculation	2022-07-25 11:26:28 +02:00
video
xen	objtool: Add entry UNRET validation	2022-07-25 11:26:45 +02:00
.gitignore
Kbuild
Kconfig	x86/bugs: Add AMD retbleed= boot parameter	2022-07-25 11:26:40 +02:00
Kconfig.assembler
Kconfig.cpu	treewide: replace '---help---' in Kconfig files with 'help'	2020-06-14 01:57:21 +09:00
Kconfig.debug	x86, powerpc: Rename memcpy_mcsafe() to copy_mc_to_{user, kernel}()	2020-10-06 11:18:04 +02:00
Makefile	x86/realmode: build with -D__DISABLE_EXPORTS	2022-07-25 11:26:33 +02:00
Makefile_32.cpu
Makefile.um