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-rw-r--r--net/ceph/auth_x.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/net/ceph/auth_x.c b/net/ceph/auth_x.c
index 2034fb926670..d0126df33f1f 100644
--- a/net/ceph/auth_x.c
+++ b/net/ceph/auth_x.c
@@ -215,6 +215,9 @@ static int process_one_ticket(struct ceph_auth_client *ac,
dout(" ticket blob is %d bytes\n", dlen);
ceph_decode_need(ptp, tpend, 1 + sizeof(u64), bad);
blob_struct_v = ceph_decode_8(ptp);
+ if (blob_struct_v != 1)
+ goto bad;
+
new_secret_id = ceph_decode_64(ptp);
ret = ceph_decode_buffer(&new_ticket_blob, ptp, tpend);
if (ret)