[PATCH 5.5 136/151] nl80211: add missing attribute validation for critical protocol indication

From: Greg Kroah-Hartman
Date: Tue Mar 17 2020 - 07:14:10 EST


From: Jakub Kicinski <kuba@xxxxxxxxxx>

commit 0e1a1d853ecedc99da9d27f9f5c376935547a0e2 upstream.

Add missing attribute validation for critical protocol fields
to the netlink policy.

Fixes: 5de17984898c ("cfg80211: introduce critical protocol indication from user-space")
Signed-off-by: Jakub Kicinski <kuba@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20200303051058.4089398-2-kuba@xxxxxxxxxx
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
net/wireless/nl80211.c | 2 ++
1 file changed, 2 insertions(+)

--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -530,6 +530,8 @@ const struct nla_policy nl80211_policy[N
[NL80211_ATTR_MDID] = { .type = NLA_U16 },
[NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
.len = IEEE80211_MAX_DATA_LEN },
+ [NL80211_ATTR_CRIT_PROT_ID] = { .type = NLA_U16 },
+ [NL80211_ATTR_MAX_CRIT_PROT_DURATION] = { .type = NLA_U16 },
[NL80211_ATTR_PEER_AID] =
NLA_POLICY_RANGE(NLA_U16, 1, IEEE80211_MAX_AID),
[NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 },