Signed-off-by: Badari Pulabarty <pbadari@us.ibm.com>
--- linux-2.6.14-rc3.org/mm/mincore.c	2005-10-10 17:14:30.000000000 -0700
+++ linux-2.6.14-rc3/mm/mincore.c	2005-10-10 17:26:52.000000000 -0700
@@ -115,7 +115,7 @@ asmlinkage long sys_mincore(unsigned lon
 	long error;
 
 	/* check the arguments */
- 	if (start & ~PAGE_CACHE_MASK)
+ 	if ((start & ~PAGE_CACHE_MASK) || ((ssize_t)len < 0))
 		goto einval;
 
 	limit = TASK_SIZE;