linux-stable/arch/x86/entry/vsyscall
Andy Lutomirski bf00745e77 x86/vsyscall: Remove CONFIG_LEGACY_VSYSCALL_EMULATE
CONFIG_LEGACY_VSYSCALL_EMULATE is, as far as I know, only needed for the
combined use of exotic and outdated debugging mechanisms with outdated
binaries. At this point, no one should be using it. Eventually, dynamic
switching of vsyscalls will be implemented, but this is much more
complicated to support in EMULATE mode than XONLY mode.

So let's force all the distros off of EMULATE mode. If anyone actually
needs it, they can set vsyscall=emulate, and the kernel can then get
away with refusing to support newer security models if that option is
set.

  [ bp: Remove "we"s. ]

Signed-off-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Kees Cook <keescook@chromium.org>
Acked-by: Florian Weimer <fweimer@redhat.com>
Link: https://lore.kernel.org/r/898932fe61db6a9d61bc2458fa2f6049f1ca9f5c.1652290558.git.luto@kernel.org
2022-05-11 20:39:31 +02:00
..
Makefile x86/vdso: Switch to generic vDSO implementation 2019-06-22 21:21:10 +02:00
vsyscall_64.c x86/vsyscall: Remove CONFIG_LEGACY_VSYSCALL_EMULATE 2022-05-11 20:39:31 +02:00
vsyscall_emu_64.S x86: Prepare asm files for straight-line-speculation 2021-12-08 12:25:37 +01:00
vsyscall_trace.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00