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authorSiddhesh Poyarekar <siddhesh@redhat.com>2014-01-02 10:03:12 +0530
committerSiddhesh Poyarekar <siddhesh@redhat.com>2014-01-02 10:04:21 +0530
commitd41242129ba693cdbc8db85b846fcaccf9f0b7c4 (patch)
tree6134954f6153a4ada1c1785e7423c327615f56af /nscd
parentac49ddc4958009fb05ee759be3dfe731d041ca3e (diff)
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Fix infinite loop in nscd when netgroup is empty (bz #16365)
Currently, when a user looks up a netgroup that does not have any members, nscd goes into an infinite loop trying to find members in the group. This is because it does not handle cases when getnetgrent returns an NSS_STATUS_NOTFOUND (which is what it does on empty group). Fixed to handle this in the same way as NSS_STATUS_RETURN, similar to what getgrent does by itself.
Diffstat (limited to 'nscd')
-rw-r--r--nscd/netgroupcache.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/nscd/netgroupcache.c b/nscd/netgroupcache.c
index baebdd7..50936ee 100644
--- a/nscd/netgroupcache.c
+++ b/nscd/netgroupcache.c
@@ -180,9 +180,10 @@ addgetnetgrentX (struct database_dyn *db, int fd, request_header *req,
int e;
status = getfct.f (&data, buffer + buffilled,
buflen - buffilled, &e);
- if (status == NSS_STATUS_RETURN)
- /* This was the last one for this group. Look
- at next group if available. */
+ if (status == NSS_STATUS_RETURN
+ || status == NSS_STATUS_NOTFOUND)
+ /* This was either the last one for this group or the
+ group was empty. Look at next group if available. */
break;
if (status == NSS_STATUS_SUCCESS)
{