diff options
| author | Eliad Peller <eliad@wizery.com> | 2011-11-24 18:13:56 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-12-09 09:21:40 -0800 |
| commit | a1b4c8a58d2b14f1900861ff91b29d7724be3f18 (patch) | |
| tree | 73d3754d1e271d0e335341cf274fdf0975070f77 | |
| parent | 92afd4898af2cb25b0d99ed23ddb3ae119007e62 (diff) | |
nl80211: fix MAC address validation
commit e007b857e88097c96c45620bf3b04a4e309053d1 upstream.
MAC addresses have a fixed length. The current
policy allows passing < ETH_ALEN bytes, which
might result in reading beyond the buffer.
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | net/wireless/nl80211.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index dbb6dde6b305..bf08d1de1f3d 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -74,8 +74,8 @@ static struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] __read_mostly = { [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 }, [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 }, - [NL80211_ATTR_MAC] = { .type = NLA_BINARY, .len = ETH_ALEN }, - [NL80211_ATTR_PREV_BSSID] = { .type = NLA_BINARY, .len = ETH_ALEN }, + [NL80211_ATTR_MAC] = { .len = ETH_ALEN }, + [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN }, [NL80211_ATTR_KEY] = { .type = NLA_NESTED, }, [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY, |