diff options
Diffstat (limited to 'x86-entry-compat-Add-missing-CLAC-to-entry_INT80_32.patch')
-rw-r--r-- | x86-entry-compat-Add-missing-CLAC-to-entry_INT80_32.patch | 46 |
1 files changed, 0 insertions, 46 deletions
diff --git a/x86-entry-compat-Add-missing-CLAC-to-entry_INT80_32.patch b/x86-entry-compat-Add-missing-CLAC-to-entry_INT80_32.patch deleted file mode 100644 index 0b4be7b73..000000000 --- a/x86-entry-compat-Add-missing-CLAC-to-entry_INT80_32.patch +++ /dev/null @@ -1,46 +0,0 @@ -From 3d44d51bd339766f0178f0cf2e8d048b4a4872aa Mon Sep 17 00:00:00 2001 -From: Andy Lutomirski <luto@kernel.org> -Date: Wed, 24 Feb 2016 12:18:49 -0800 -Subject: [PATCH] x86/entry/compat: Add missing CLAC to entry_INT80_32 - -This doesn't seem to fix a regression -- I don't think the CLAC was -ever there. - -I double-checked in a debugger: entries through the int80 gate do -not automatically clear AC. - -Stable maintainers: I can provide a backport to 4.3 and earlier if -needed. This needs to be backported all the way to 3.10. - -Reported-by: Brian Gerst <brgerst@gmail.com> -Signed-off-by: Andy Lutomirski <luto@kernel.org> -Cc: Andy Lutomirski <luto@amacapital.net> -Cc: Borislav Petkov <bp@alien8.de> -Cc: Denys Vlasenko <dvlasenk@redhat.com> -Cc: H. Peter Anvin <hpa@zytor.com> -Cc: Linus Torvalds <torvalds@linux-foundation.org> -Cc: Peter Zijlstra <peterz@infradead.org> -Cc: Thomas Gleixner <tglx@linutronix.de> -Cc: <stable@vger.kernel.org> # v3.10 and later -Fixes: 63bcff2a307b ("x86, smap: Add STAC and CLAC instructions to control user space access") -Link: http://lkml.kernel.org/r/b02b7e71ae54074be01fc171cbd4b72517055c0e.1456345086.git.luto@kernel.org -Signed-off-by: Ingo Molnar <mingo@kernel.org> ---- - arch/x86/entry/entry_64_compat.S | 1 + - 1 file changed, 1 insertion(+) - -diff --git a/arch/x86/entry/entry_64_compat.S b/arch/x86/entry/entry_64_compat.S -index ff1c6d61f332..3c990eeee40b 100644 ---- a/arch/x86/entry/entry_64_compat.S -+++ b/arch/x86/entry/entry_64_compat.S -@@ -261,6 +261,7 @@ ENTRY(entry_INT80_compat) - * Interrupts are off on entry. - */ - PARAVIRT_ADJUST_EXCEPTION_FRAME -+ ASM_CLAC /* Do this early to minimize exposure */ - SWAPGS - - /* --- -2.5.0 - |