prima: Fix possible integer underflow in cfg80211_rx_mgmt
propagation from qcacld-3.0 to qcacld-2.0
Further adapted from qcacld-2.0 to prima.
In the function cfg80211_rx_mgmt, data_len is calculated as
len - ieee80211_hdrlen(mgmt->frame_control). Len is not
validated before this calculation. So a possible integer
underflow will occur if len value is less than the value of
ieee80211_hdrlen(mgmt->frame_control).
Validate the value of len against
ieee80211_hdrlen(mgmt->frame_control) in the caller.
Issue: SEC-1940
Bug: 129850941
Change-Id: Iae776daf37b0c052bd4ce4da44ea728d121eae51
CRs-Fixed: 2337425
Signed-off-by: hsuvictor <hsuvictor@google.com>
(adapted from commit 0da2144509ad97742e3319a3771cc0425d79c4d0)
1 file changed