diff options
| author | Srinivas Dasari <dasaris@qti.qualcomm.com> | 2017-07-07 01:43:41 +0300 |
|---|---|---|
| committer | Mister Oyster <oysterized@gmail.com> | 2017-12-08 17:14:38 +0100 |
| commit | 62fb9f8b97d0cd3efa682fc7f53095f08b421708 (patch) | |
| tree | 23391df9ae78b6cbde36f267155010565ada4230 /net/wireless | |
| parent | e17fca6a8459d306dc40ab203c52f2f165234417 (diff) | |
cfg80211: Define nla_policy for NL80211_ATTR_LOCAL_MESH_POWER_MODE
Buffer overread may happen as nl80211_set_station() reads 4 bytes
from the attribute NL80211_ATTR_LOCAL_MESH_POWER_MODE without
validating the size of data received when userspace sends less
than 4 bytes of data with NL80211_ATTR_LOCAL_MESH_POWER_MODE.
Define nla_policy for NL80211_ATTR_LOCAL_MESH_POWER_MODE to avoid
the buffer overread.
Fixes: 3b1c5a5307f ("{cfg,nl}80211: mesh power mode primitives and userspace access")
Cc: stable@vger.kernel.org
Bug: 36819059
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: 8feb69c7bd89513be80eb19198d48f154b254021
Change-Id: Ie20993309501fd242782311b9fe787931f716116
CRs-Fixed: 2055013
Signed-off-by: Srinivas Dasari <dasaris@codeaurora.org>
(cherry picked from commit ac4f175b41aef6a924d0a8f1a79bca89b6ea62e0)
Diffstat (limited to 'net/wireless')
| -rw-r--r-- | net/wireless/nl80211.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 2ea547def..fee27f002 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -365,6 +365,7 @@ static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = { [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 }, [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 }, [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 }, + [NL80211_ATTR_LOCAL_MESH_POWER_MODE] = {. type = NLA_U32 }, [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 }, [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED }, [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 }, |