diff options
| author | Srinivas Dasari <dasaris@qti.qualcomm.com> | 2017-07-07 01:43:40 +0300 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2017-07-07 11:22:21 +0200 |
| commit | 0a27844ce86d039d74221dd56cd8c0349b146b63 (patch) | |
| tree | 8ed068b10a4d3bdd751e335265173e76a123ba56 /kernel/jump_label.c | |
| parent | 9361df14d1cbf966409d5d6f48bb334384fbe138 (diff) | |
cfg80211: Check if NAN service ID is of expected size
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, cfg80211 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_NAN_FUNC_SERVICE_ID to make these NLA_UNSPEC and to make sure
minimum NL80211_NAN_FUNC_SERVICE_ID_LEN bytes are received from
userspace with NL80211_NAN_FUNC_SERVICE_ID.
Fixes: a442b761b24 ("cfg80211: add add_nan_func / del_nan_func")
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>
Diffstat (limited to 'kernel/jump_label.c')
0 files changed, 0 insertions, 0 deletions