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-rw-r--r--vm/vm_map.c3
-rw-r--r--vm/vm_user.c3
2 files changed, 6 insertions, 0 deletions
diff --git a/vm/vm_map.c b/vm/vm_map.c
index c46afc0..22fa836 100644
--- a/vm/vm_map.c
+++ b/vm/vm_map.c
@@ -784,6 +784,9 @@ kern_return_t vm_map_enter(
#define RETURN(value) { result = value; goto BailOut; }
+ if (size == 0)
+ return KERN_INVALID_ARGUMENT;
+
StartAgain: ;
start = *address;
diff --git a/vm/vm_user.c b/vm/vm_user.c
index a8ce982..6fe398e 100644
--- a/vm/vm_user.c
+++ b/vm/vm_user.c
@@ -342,6 +342,9 @@ kern_return_t vm_map(
return(KERN_INVALID_ARGUMENT);
}
+ if (size == 0)
+ return KERN_INVALID_ARGUMENT;
+
*address = trunc_page(*address);
size = round_page(size);