diff options
| author | Srinivas Dasari <dasaris@qti.qualcomm.com> | 2017-07-07 01:43:39 +0300 |
|---|---|---|
| committer | Gerrit - the friendly Code Review server <code-review@localhost> | 2017-08-02 18:03:45 -0700 |
| commit | 3cbe913661eb97e3b8e635b921f04a6653159d45 (patch) | |
| tree | 2a3f4264de72ccf7e76e86b7dc5496a167e8235f /lib/mpi/mpi-cmp.c | |
| parent | 560d31410c7a0eaf2eb37d9e0a020563f6524815 (diff) | |
cfg80211: Check if PMKID attribute 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, 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>
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211.git
Git-commit: 9361df14d1cbf966409d5d6f48bb334384fbe138
Change-Id: I5feb729a9ef48f67c4ee460e7e133d5fc8cecd4f
CRs-Fixed: 2061676
Signed-off-by: Srinivas Dasari <dasaris@codeaurora.org>
Diffstat (limited to 'lib/mpi/mpi-cmp.c')
0 files changed, 0 insertions, 0 deletions