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| author | Bob Pearson <rpearsonhpe@gmail.com> | 2020-10-13 13:42:37 -0500 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2020-10-16 13:57:55 -0300 |
| commit | 71abf20b28ff87fee6951ec2218d5ce7969c4e87 (patch) | |
| tree | 01c132c97eb628885454a3c2a9b2d58c90190bb0 /drivers/infiniband | |
| parent | e0d696d201dd5d31813787d9b61a42fc459eee89 (diff) | |
| download | linux-71abf20b28ff87fee6951ec2218d5ce7969c4e87.tar.bz2 | |
RDMA/rxe: Handle skb_clone() failure in rxe_recv.c
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()")
Addresses-Coverity-ID: 1497804: Null pointer dereferences (NULL_RETURNS)
Link: https://lore.kernel.org/r/20201013184236.5231-1-rpearson@hpe.com
Signed-off-by: Bob Pearson <rpearson@hpe.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'drivers/infiniband')
| -rw-r--r-- | drivers/infiniband/sw/rxe/rxe_recv.c | 3 |
1 files changed, 3 insertions, 0 deletions
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); |