[patch] Revised mremap patch to solve patching issues

mremap-CAN-2003-0985.patch (text/plain), 414 bytes, created by kfm on 2004-01-05 10:24:40 UTC

--- linux/mm/mremap.c.orig	2004-01-05 17:01:21.382104120 +0000
+++ linux/mm/mremap.c	2004-01-05 17:15:25.689749848 +0000
@@ -270,6 +270,10 @@
 	old_len = PAGE_ALIGN(old_len);
 	new_len = PAGE_ALIGN(new_len);
 
+	/* Don't allow the degenerate cases */
+	if (!(old_len | new_len))
+		goto out;
+
 	/* new_addr is only valid if MREMAP_FIXED is specified */
 	if (flags & MREMAP_FIXED) {
 		if (new_addr & ~PAGE_MASK)