patch-2.2.16 linux/fs/binfmt_elf.c

• Lines: 10
• Date: Wed Jun 7 14:26:43 2000
• Orig file: v2.2.15/linux/fs/binfmt_elf.c
• Orig date: Wed May 3 17:16:46 2000

diff -urN v2.2.15/linux/fs/binfmt_elf.c linux/fs/binfmt_elf.c
@@ -376,6 +376,9 @@
 		goto out;
 	}
 
+	if ((unsigned long)addr + text_data < text_data)
+		goto out;
+
 	do_mmap(NULL, 0, text_data,
 		PROT_READ|PROT_WRITE|PROT_EXEC, MAP_FIXED|MAP_PRIVATE, 0);
 	retval = read_exec(interpreter_dentry, offset, addr, text_data, 0);