autofs-5.0.8 - check for bind onto self in mount_bind.c
From: Ian Kent <raven@themaw.net>
Check for an obviously impossible request to bind or symlink to the
same patch for source and target.
---
CHANGELOG | 1 +
modules/mount_bind.c | 6 ++++++
2 files changed, 7 insertions(+)
--- autofs-5.0.7.orig/CHANGELOG
+++ autofs-5.0.7/CHANGELOG
@@ -85,6 +85,7 @@
- fix compilation of lookup_ldap.c without sasl.
- fix undefined authtype_requires_creds err if ldap enabled but without sasl.
- pass map_source as function paramter where possible.
+- check for bind onto self in mount_bind.c.
25/07/2012 autofs-5.0.7
=======================
--- autofs-5.0.7.orig/modules/mount_bind.c
+++ autofs-5.0.7/modules/mount_bind.c
@@ -135,6 +135,12 @@ int mount_mount(struct autofs_point *ap,
if (options == NULL || *options == '\0')
options = "defaults";
+ if (!strcmp(what, fullpath)) {
+ debug(ap->logopt, MODPREFIX
+ "cannot mount or symlink %s to itself", fullpath);
+ return 1;
+ }
+
if (!symlnk && bind_works) {
int status, existed = 1;