UBUNTU: Ubuntu-2.6.38-12.51

[linux-flexiantxendom0-natty.git] / fs / binfmt_script.c

diff --git a/fs/binfmt_script.c b/fs/binfmt_script.c
index 4d0e0f6..396a988 100644 (file)
--- a/fs/binfmt_script.c
+++ b/fs/binfmt_script.c
@@ -1,14 +1,13 @@
 /*
  *  linux/fs/binfmt_script.c
  *
- *  Copyright (C) 1996  Martin von Löwis
+ *  Copyright (C) 1996  Martin von Löwis
  *  original #!-checking implemented by tytso.
  */
 
 #include <linux/module.h>
 #include <linux/string.h>
 #include <linux/stat.h>
-#include <linux/slab.h>
 #include <linux/binfmts.h>
 #include <linux/init.h>
 #include <linux/file.h>
@@ -17,19 +16,21 @@
 
 static int load_script(struct linux_binprm *bprm,struct pt_regs *regs)
 {
-       char *cp, *i_name, *i_arg;
+       const char *i_arg, *i_name;
+       char *cp;
        struct file *file;
        char interp[BINPRM_BUF_SIZE];
        int retval;
 
-       if ((bprm->buf[0] != '#') || (bprm->buf[1] != '!') || (bprm->sh_bang)) 
+       if ((bprm->buf[0] != '#') || (bprm->buf[1] != '!') ||
+           (bprm->recursion_depth > BINPRM_MAX_RECURSION))
                return -ENOEXEC;
        /*
         * This section does the #! interpretation.
         * Sorta complicated, but hopefully it will work.  -TYT
         */
 
-       bprm->sh_bang++;
+       bprm->recursion_depth++;
        allow_write_access(bprm->file);
        fput(bprm->file);
        bprm->file = NULL;