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| author | Devesh Sharma <devesh.sharma@emulex.com> | 2014-09-26 20:45:32 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-11-21 09:23:04 -0800 |
| commit | ff1d3b7890f9d58aa057eadad1bb0c9e368091fe (patch) | |
| tree | 53448df31756d75986007c8d1ba96956e4827515 | |
| parent | ce1d89b64cb210b29bd4802549d831577f005816 (diff) | |
| download | lwn-ff1d3b7890f9d58aa057eadad1bb0c9e368091fe.tar.gz lwn-ff1d3b7890f9d58aa057eadad1bb0c9e368091fe.zip | |
IB/core: Clear AH attr variable to prevent garbage data
commit 8b0f93d9490653a7b9fc91f3570089132faed1c0 upstream.
During create-ah from userspace, uverbs is sending garbage data in
attr.dmac and attr.vlan_id. This patch sets attr.dmac and
attr.vlan_id to zero.
Fixes: dd5f03beb4f7 ("IB/core: Ethernet L2 attributes in verbs/cm structures")
Signed-off-by: Devesh Sharma <devesh.sharma@emulex.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/infiniband/core/uverbs_cmd.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c index ea6203ee7bcc..23467a2abd62 100644 --- a/drivers/infiniband/core/uverbs_cmd.c +++ b/drivers/infiniband/core/uverbs_cmd.c @@ -2425,6 +2425,8 @@ ssize_t ib_uverbs_create_ah(struct ib_uverbs_file *file, attr.grh.sgid_index = cmd.attr.grh.sgid_index; attr.grh.hop_limit = cmd.attr.grh.hop_limit; attr.grh.traffic_class = cmd.attr.grh.traffic_class; + attr.vlan_id = 0; + memset(&attr.dmac, 0, sizeof(attr.dmac)); memcpy(attr.grh.dgid.raw, cmd.attr.grh.dgid, 16); ah = ib_create_ah(pd, &attr); |