Commit 74f160ea authored by Gerd Rausch's avatar Gerd Rausch Committed by Jason Gunthorpe
Browse files

RDMA/cma: Fix rdma_resolve_route() memory leak 

Fix a memory leak when "mda_resolve_route() is called more than once on
the same "rdma_cm_id".

This is possible if cma_query_handler() triggers the
RDMA_CM_EVENT_ROUTE_ERROR flow which puts the state machine back and
allows rdma_resolve_route() to be called again.

Link: https://lore.kernel.org/r/f6662b7b-bdb7-2706-1e12-47c61d3474b6@oracle.com


Signed-off-by: default avatarGerd Rausch <gerd.rausch@oracle.com>
Signed-off-by: default avatarJason Gunthorpe <jgg@nvidia.com>
parent efcbea30

drivers/infiniband/core/cma.c

+2 −1
Original line number Diff line number Diff line
@@ -2814,6 +2814,7 @@ static int cma_resolve_ib_route(struct rdma_id_private *id_priv, 


	cma_init_resolve_route_work(work, id_priv);



	if (!route->path_rec)

		route->path_rec = kmalloc(sizeof *route->path_rec, GFP_KERNEL);

	if (!route->path_rec) {

		ret = -ENOMEM;