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-rw-r--r--kernel/events/uprobes.c13
1 files changed, 4 insertions, 9 deletions
diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c
index a9de408..8d182bd 100644
--- a/kernel/events/uprobes.c
+++ b/kernel/events/uprobes.c
@@ -100,17 +100,12 @@ struct uprobe {
*/
static bool valid_vma(struct vm_area_struct *vma, bool is_register)
{
- if (!vma->vm_file)
- return false;
-
- if (!is_register)
- return true;
+ vm_flags_t flags = VM_HUGETLB | VM_MAYEXEC | VM_SHARED;
- if ((vma->vm_flags & (VM_HUGETLB | VM_WRITE | VM_MAYEXEC | VM_SHARED))
- == VM_MAYEXEC)
- return true;
+ if (is_register)
+ flags |= VM_WRITE;
- return false;
+ return vma->vm_file && (vma->vm_flags & flags) == VM_MAYEXEC;
}
static unsigned long offset_to_vaddr(struct vm_area_struct *vma, loff_t offset)