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| author | Thadeu Lima de Souza Cascardo <cascardo@linux.vnet.ibm.com> | 2012-05-17 17:51:53 -0300 |
|---|---|---|
| committer | Roland Dreier <roland@purestorage.com> | 2012-06-03 22:59:15 -0700 |
| commit | 71b43fd573a60972b2175df4927c4ee10d757004 (patch) | |
| tree | 405a41b627653697587b2286b362d40fad3e55d2 /drivers/infiniband | |
| parent | c23ddf7857bdb2e8001b0a058603497c765a580d (diff) | |
| download | linux-71b43fd573a60972b2175df4927c4ee10d757004.tar.gz linux-71b43fd573a60972b2175df4927c4ee10d757004.tar.bz2 linux-71b43fd573a60972b2175df4927c4ee10d757004.zip | |
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.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 55ab284e22f2..b18870c455ad 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) |