[PATCH] iw_cxgb4: do not crash when peer address is 0.0.0.0
From: Thadeu Lima de Souza Cascardo <hidden>
Date: 2012-05-17 20:51:53
Subsystem:
cxgb4 iwarp rnic driver (iw_cxgb4), infiniband subsystem, the rest · Maintainers:
Potnuri Bharat Teja, Jason Gunthorpe, Leon Romanovsky, Linus Torvalds
When using rping -c -a 0.0.0.0 with iw_cxgb4, the system crashes when rdma_connect is called. ip_dev_find will return NULL, but pdev is accessed anyway. Checking that pdev is NULL and returning -ENODEV prevents the system from crashing. Signed-off-by: Thadeu Lima de Souza Cascardo <redacted> --- drivers/infiniband/hw/cxgb4/cm.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/drivers/infiniband/hw/cxgb4/cm.c b/drivers/infiniband/hw/cxgb4/cm.c
index 92b4c2b..0e75e30 100644
--- a/drivers/infiniband/hw/cxgb4/cm.c
+++ b/drivers/infiniband/hw/cxgb4/cm.c@@ -1572,6 +1572,10 @@ static int import_ep(struct c4iw_ep *ep, __be32 peer_ip, struct dst_entry *dst, struct net_device *pdev; pdev = ip_dev_find(&init_net, peer_ip); + if (!pdev) { + err = -ENODEV; + goto out; + } ep->l2t = cxgb4_l2t_get(cdev->rdev.lldi.l2t, n, pdev, 0); if (!ep->l2t)
--
1.7.4.4
--
To unsubscribe from this list: send the line "unsubscribe linux-rdma" in
the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
More majordomo info at http://vger.kernel.org/majordomo-info.html