6.8-stable review patch. If anyone has any objections, please let me know.
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From: Dave Hansen dave.hansen@linux.intel.com
commit 532a0c57d7ff75e8f07d4e25cba4184989e2a241 upstream.
This was reverts commit 8009479ee919b9a91674f48050ccbff64eafedaa.
It was originally in x86/urgent, but was deemed wrong so got zapped. But in the meantime, x86/urgent had been merged into x86/apic to resolve a conflict. I didn't notice the merge so didn't zap it from x86/apic and it managed to make it up with the x86/apic material.
The reverted commit is known to cause some KASAN problems.
Signed-off-by: Dave Hansen dave.hansen@linux.intel.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/x86/include/asm/nospec-branch.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/x86/include/asm/nospec-branch.h +++ b/arch/x86/include/asm/nospec-branch.h @@ -332,7 +332,7 @@ * Note: Only the memory operand variant of VERW clears the CPU buffers. */ .macro CLEAR_CPU_BUFFERS - ALTERNATIVE "", __stringify(verw mds_verw_sel), X86_FEATURE_CLEAR_CPU_BUF + ALTERNATIVE "", __stringify(verw _ASM_RIP(mds_verw_sel)), X86_FEATURE_CLEAR_CPU_BUF .endm
#else /* __ASSEMBLY__ */