1 files changed, 1 insertions, 1 deletions
diff --git a/syscall.c b/syscall.c
index 16c5b47..f6550a1 100644
--- a/syscall.c
+++ b/syscall.c
@@ -57,7 +57,7 @@ argptr(int n, char **pp, int size)
   
   if(argint(n, &i) < 0)
     return -1;
-  if((uint)i >= proc->sz || (uint)i+size >= proc->sz)
+  if((uint)i >= proc->sz || (uint)i+size > proc->sz)
     return -1;
   *pp = (char*)i;
   return 0;