autofs-5.1.8 - fix loop under run in cache_get_offset_parent()

From: Frank Sorenson <sorenson@redhat.com>

To avoid reading memory outside of the the string

allocated for parent, tail needs to stop when it

reaches or passes parent, even if it doesn't

actually equal parent.

Signed-off-by: Frank Sorenson <sorenson@redhat.com>

---

 CHANGELOG   |    1 +

 lib/cache.c |    2 +-

 2 files changed, 2 insertions(+), 1 deletion(-)

--- autofs-5.1.4.orig/CHANGELOG

+++ autofs-5.1.4/CHANGELOG

@@ -86,6 +86,7 @@

 - fix root offset error handling.

 - fix nonstrict fail handling of last offset mount.

 - dont fail on duplicate offset entry tree add.

+- fix loop under run in cache_get_offset_parent().

 xx/xx/2018 autofs-5.1.5

 - fix flag file permission.

--- autofs-5.1.4.orig/lib/cache.c

+++ autofs-5.1.4/lib/cache.c

@@ -680,7 +680,7 @@ struct mapent *cache_get_offset_parent(s

 		*tail = 0;

 		tail--;

-		if (tail == parent)

+		if (tail <= parent)

 			break;

 		me = cache_lookup_distinct(mc, parent);