From 9d49cfd00958adab1f734addd0ae1c8ee8267f21 Mon Sep 17 00:00:00 2001 From: "Liam R. Howlett" Date: Thu, 8 Apr 2021 13:26:35 -0400 Subject: [PATCH] x86/sgx: Use vma_lookup() in sgx_encl_find() Use vma_lookup() to find the VMA at a specific address. As vma_lookup() will return NULL if the address is not within any VMA, the start address no longer needs to be validated. Signed-off-by: Liam R. Howlett --- arch/x86/kernel/cpu/sgx/encl.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/x86/kernel/cpu/sgx/encl.h b/arch/x86/kernel/cpu/sgx/encl.h index 6e74f85b6264..fec43ca65065 100644 --- a/arch/x86/kernel/cpu/sgx/encl.h +++ b/arch/x86/kernel/cpu/sgx/encl.h @@ -91,8 +91,8 @@ static inline int sgx_encl_find(struct mm_struct *mm, unsigned long addr, { struct vm_area_struct *result; - result = find_vma(mm, addr); - if (!result || result->vm_ops != &sgx_vm_ops || addr < result->vm_start) + result = vma_lookup(mm, addr); + if (!result || result->vm_ops != &sgx_vm_ops) return -EINVAL; *vma = result; -- 2.50.1