1 files changed, 38 insertions, 1 deletions

diff --git a/fs/exec.c b/fs/exec.c
index 936f5776655c..ea5f748906a8 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -42,7 +42,6 @@
 #include <linux/pid_namespace.h>
 #include <linux/module.h>
 #include <linux/namei.h>
-#include <linux/proc_fs.h>
 #include <linux/mount.h>
 #include <linux/security.h>
 #include <linux/syscalls.h>
@@ -1624,6 +1623,41 @@ expand_fail:
         return ret;
 }
 
+static int cn_print_exe_file(struct core_name *cn)
+{
+        struct file *exe_file;
+        char *pathbuf, *path, *p;
+        int ret;
+
+        exe_file = get_mm_exe_file(current->mm);
+        if (!exe_file)
+                return cn_printf(cn, "(unknown)");
+
+        pathbuf = kmalloc(PATH_MAX, GFP_TEMPORARY);
+        if (!pathbuf) {
+                ret = -ENOMEM;
+                goto put_exe_file;
+        }
+
+        path = d_path(&exe_file->f_path, pathbuf, PATH_MAX);
+        if (IS_ERR(path)) {
+                ret = PTR_ERR(path);
+                goto free_buf;
+        }
+
+        for (p = path; *p; p++)
+                if (*p == '/')
+                        *p = '!';
+
+        ret = cn_printf(cn, "%s", path);
+
+free_buf:
+        kfree(pathbuf);
+put_exe_file:
+        fput(exe_file);
+        return ret;
+}
+
 /* format_corename will inspect the pattern parameter, and output a
  * name into corename, which must have space for at least
  * CORENAME_MAX_SIZE bytes plus one byte for the zero terminator.
@@ -1695,6 +1729,9 @@ static int format_corename(struct core_name *cn, long signr)
                         case 'e':
                                 err = cn_printf(cn, "%s", current->comm);
                                 break;
+                        case 'E':
+                                err = cn_print_exe_file(cn);
+                                break;
                         /* core limit size */
                         case 'c':
                                 err = cn_printf(cn, "%lu",