diff options
| author | Srinivas Dasari <dasaris@qti.qualcomm.com> | 2017-07-07 01:43:39 +0300 |
|---|---|---|
| committer | Moyster <oysterized@gmail.com> | 2017-11-06 15:33:02 +0100 |
| commit | 993150b4d8f925835eac813aeff6985da156f23b (patch) | |
| tree | e315c1afdf94f1c978d20cce9196cef68e7ddf6e /drivers/android | |
| parent | 5b220c079e941233c980f728ad4b61a445697e35 (diff) | |
cfg80211: Check if PMKID attribute is of expected size
commit 9361df14d1cbf966409d5d6f48bb334384fbe138 upstream.
nla policy checks for only maximum length of the attribute data
when the attribute type is NLA_BINARY. If userspace sends less
data than specified, the wireless drivers may access illegal
memory. When type is NLA_UNSPEC, nla policy check ensures that
userspace sends minimum specified length number of bytes.
Remove type assignment to NLA_BINARY from nla_policy of
NL80211_ATTR_PMKID to make this NLA_UNSPEC and to make sure minimum
WLAN_PMKID_LEN bytes are received from userspace with
NL80211_ATTR_PMKID.
Fixes: 67fbb16be69d ("nl80211: PMKSA caching support")
Cc: stable@vger.kernel.org
Signed-off-by: Srinivas Dasari <dasaris@qti.qualcomm.com>
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Willy Tarreau <w@1wt.eu>
Diffstat (limited to 'drivers/android')
0 files changed, 0 insertions, 0 deletions