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Diffstat (limited to 'lib/libpam/modules/pam_group')
-rw-r--r--lib/libpam/modules/pam_group/pam_group.c10
1 files changed, 4 insertions, 6 deletions
diff --git a/lib/libpam/modules/pam_group/pam_group.c b/lib/libpam/modules/pam_group/pam_group.c
index a6e32cd..5b918c0 100644
--- a/lib/libpam/modules/pam_group/pam_group.c
+++ b/lib/libpam/modules/pam_group/pam_group.c
@@ -96,14 +96,12 @@ pam_sm_authenticate(pam_handle_t *pamh, int flags __unused,
if ((grp = getgrnam(group)) == NULL || grp->gr_mem == NULL)
goto failed;
- /* check if the group is empty */
- if (*grp->gr_mem == NULL)
- goto failed;
-
- /* check membership */
+ /* check if user's own primary group */
if (pwd->pw_gid == grp->gr_gid)
goto found;
- for (list = grp->gr_mem; *list != NULL; ++list)
+
+ /* iterate over members */
+ for (list = grp->gr_mem; list != NULL && *list != NULL; ++list)
if (strcmp(*list, pwd->pw_name) == 0)
goto found;
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