get_current_cred() increments the reference counter, but the
put_cred() call was missing.
Fixes: 596afb0b8933 ("ceph: add ceph_mds_check_access() helper")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Max Kellermann <max.kellermann@xxxxxxxxx>
---
fs/ceph/mds_client.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index e8a5994de8b6..35d83c8c2874 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -5742,6 +5742,7 @@ int ceph_mds_check_access(struct ceph_mds_client *mdsc, char *tpath, int mask)
err = ceph_mds_auth_match(mdsc, s, cred, tpath);
if (err < 0) {
+ put_cred(cred);
return err;
} else if (err > 0) {
/* always follow the last auth caps' permision */
@@ -5757,6 +5758,8 @@ int ceph_mds_check_access(struct ceph_mds_client *mdsc, char *tpath, int mask)
}
}
+ put_cred(cred);
+
doutc(cl, "root_squash_perms %d, rw_perms_s %p\n", root_squash_perms,
rw_perms_s);
if (root_squash_perms && rw_perms_s == NULL) {
--
2.45.2
