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authorKees Cook <keescook@chromium.org>2018-02-25 17:50:56 +0100
committerThomas Gleixner <tglx@linutronix.de>2018-02-28 15:18:40 +0100
commitcb097be7036aa325adba33d8c41fe77b980b0e77 (patch)
treeb6dc5b37447e0f04c2f100e6e0d43e3506710ee2 /arch/x86/include/asm/refcount.h
parentMerge branch 'fixes-v4.16-rc4' of git://git.kernel.org/pub/scm/linux/kernel/g... (diff)
downloadlinux-cb097be7036aa325adba33d8c41fe77b980b0e77.tar.xz
linux-cb097be7036aa325adba33d8c41fe77b980b0e77.zip
x86/refcounts: Switch to UD2 for exceptions
As done in commit 3b3a371cc9bc ("x86/debug: Use UD2 for WARN()"), this switches to UD2 from UD0 to keep disassembly readable. Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lkml.kernel.org/r/20180225165056.GA11719@beast
Diffstat (limited to 'arch/x86/include/asm/refcount.h')
-rw-r--r--arch/x86/include/asm/refcount.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/include/asm/refcount.h b/arch/x86/include/asm/refcount.h
index d65171120e90..4cf11d88d3b3 100644
--- a/arch/x86/include/asm/refcount.h
+++ b/arch/x86/include/asm/refcount.h
@@ -17,7 +17,7 @@
#define _REFCOUNT_EXCEPTION \
".pushsection .text..refcount\n" \
"111:\tlea %[counter], %%" _ASM_CX "\n" \
- "112:\t" ASM_UD0 "\n" \
+ "112:\t" ASM_UD2 "\n" \
ASM_UNREACHABLE \
".popsection\n" \
"113:\n" \