patch-2.3.11 linux/kernel/ptrace.c

• Lines: 9
• Date: Mon Jul 19 12:29:05 1999
• Orig file: v2.3.10/linux/kernel/ptrace.c
• Orig date: Thu Jul 8 15:42:21 1999

diff -u --recursive --new-file v2.3.10/linux/kernel/ptrace.c linux/kernel/ptrace.c
@@ -39,6 +39,8 @@
 	if (!pte_present(*pgtable))
 		goto fault_in_page;
 	page = pte_page(*pgtable);
+	if (write && (!pte_write(*pgtable) || !pte_dirty(*pgtable)))
+		goto fault_in_page;
 	if (MAP_NR(page) >= max_mapnr)
 		return 0;
 	flush_cache_page(vma, addr);