diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2013-03-27 14:30:12 +0100 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2013-04-08 09:16:56 +0200 |
| commit | 1cd8e88e17729f57a9c7f751103e522596bb5de2 (patch) | |
| tree | c20e4a7bed65480cea84f6a38bb4d0d44dd115f0 /net/mac80211/util.c | |
| parent | a6dfba841c4d38312115dc6b08d86cc496af7e88 (diff) | |
mac80211: check DSSS params IE length in parser
It's always just one byte, so check for that and
remove the length field from the parser struct.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/util.c')
| -rw-r--r-- | net/mac80211/util.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/net/mac80211/util.c b/net/mac80211/util.c index 2708b270e94..0f7d1c20f8a 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -739,8 +739,10 @@ u32 ieee802_11_parse_elems_crc(u8 *start, size_t len, elems->supp_rates_len = elen; break; case WLAN_EID_DS_PARAMS: - elems->ds_params = pos; - elems->ds_params_len = elen; + if (elen >= 1) + elems->ds_params = pos; + else + elem_parse_failed = true; break; case WLAN_EID_TIM: if (elen >= sizeof(struct ieee80211_tim_ie)) { |