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authorThadeu Lima de Souza Cascardo <cascardo@linux.vnet.ibm.com>2012-05-17 17:51:53 -0300
committerRoland Dreier <roland@purestorage.com>2012-06-03 22:59:15 -0700
commit71b43fd573a60972b2175df4927c4ee10d757004 (patch)
tree405a41b627653697587b2286b362d40fad3e55d2 /drivers/infiniband
parentc23ddf7857bdb2e8001b0a058603497c765a580d (diff)
downloadop-kernel-dev-71b43fd573a60972b2175df4927c4ee10d757004.zip
op-kernel-dev-71b43fd573a60972b2175df4927c4ee10d757004.tar.gz
RDMA/cxgb4: Fix crash when peer address is 0.0.0.0
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 <cascardo@linux.vnet.ibm.com> Acked-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
Diffstat (limited to 'drivers/infiniband')
-rw-r--r--drivers/infiniband/hw/cxgb4/cm.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/cxgb4/cm.c b/drivers/infiniband/hw/cxgb4/cm.c
index 55ab284e..b18870c 100644
--- a/drivers/infiniband/hw/cxgb4/cm.c
+++ b/drivers/infiniband/hw/cxgb4/cm.c
@@ -1593,6 +1593,10 @@ 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)
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