tree 9cbe0d8566b890f43cd8d9f884f8b78104775f29
parent 4a4f1a5808c8bb0b72a4f6e5904c53fb8c9cd966
author Johannes Berg <johannes.berg@intel.com> 1351204600 +0200
committer Johannes Berg <johannes.berg@intel.com> 1351284762 +0200

mac80211: verify that skb data is present

A number of places in the mesh code don't check that
the frame data is present and in the skb header when
trying to access. Add those checks and the necessary
pskb_may_pull() calls. This prevents accessing data
that doesn't actually exist.

To do this, export ieee80211_get_mesh_hdrlen() to be
able to use it in mac80211.

Cc: stable@vger.kernel.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>