diff options
| author | Eliad Peller <eliad@wizery.com> | 2011-11-24 18:13:56 +0200 |
|---|---|---|
| committer | Paul Gortmaker <paul.gortmaker@windriver.com> | 2013-01-16 16:44:59 -0500 |
| commit | 42585bfbff9ad0c9c03e47a1989f911a984ce618 (patch) | |
| tree | c08c4c48d7707a1982716801cc6b6aa5d8b0f98d | |
| parent | 89b56467c5ee10ab80c44aa1fe03d461deaf0c92 (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: Paul Gortmaker <paul.gortmaker@windriver.com>
| -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 fde82a8ac5da..a316e592376b 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -76,8 +76,8 @@ static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = { [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, |