If skb_clone is unable to allocate memory for a new
sk_buff this is not detected by the current code.
Check for a NULL return and continue. This is similar to
other errors in this loop over QPs attached to the multicast address
and consistent with the unreliable UD transport.
Fixes: e7ec96fc7932f ("RDMA/rxe: Fix skb lifetime in rxe_rcv_mcast_pkt()")
Signed-off-by: Bob Pearson <rpearson@xxxxxxx>
---
drivers/infiniband/sw/rxe/rxe_recv.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/infiniband/sw/rxe/rxe_recv.c b/drivers/infiniband/sw/rxe/rxe_recv.c
index 11f3daf20768..c9984a28eecc 100644
--- a/drivers/infiniband/sw/rxe/rxe_recv.c
+++ b/drivers/infiniband/sw/rxe/rxe_recv.c
@@ -271,6 +271,9 @@ static void rxe_rcv_mcast_pkt(struct rxe_dev *rxe, struct sk_buff *skb)
else
per_qp_skb = skb;
+ if (unlikely(!per_qp_skb))
+ continue;
+
per_qp_pkt = SKB_TO_PKT(per_qp_skb);
per_qp_pkt->qp = qp;
rxe_add_ref(qp);
--
2.25.1
