autofs/autofs-5.1.8-fix-loop-under-run-in-cache_get_offset_parent.patch

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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-5.1.7.orig/CHANGELOG
+++ autofs-5.1.7/CHANGELOG
@@ -88,6 +88,7 @@
- fix 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().
25/01/2021 autofs-5.1.7
- make bind mounts propagation slave by default.
--- autofs-5.1.7.orig/lib/cache.c
+++ autofs-5.1.7/lib/cache.c
@@ -710,7 +710,7 @@ struct mapent *cache_get_offset_parent(s
*tail = 0;
tail--;
- if (tail == parent)
+ if (tail <= parent)
break;
me = cache_lookup_distinct(mc, parent);