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| author | Srinivas Dasari <dasaris@qti.qualcomm.com> | 2017-07-07 01:43:41 +0300 |
|---|---|---|
| committer | Adrian Salido <salidoa@google.com> | 2017-09-14 16:03:24 -0700 |
| commit | 920e4c33dea6bfd88343eb88bd0880f6334d9153 (patch) | |
| tree | 6156797112ddbd10d0ef679d1068fad49f2326ab | |
| parent | a427ab01b06a53721b7077f9a9ebf227db8c481e (diff) | |
| download | tegra-920e4c33dea6bfd88343eb88bd0880f6334d9153.tar.gz | |
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>
| -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 c530f587bbb4..f6760249fe0c 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -358,6 +358,7 @@ static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = { [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 }, |