diff options
Diffstat (limited to 'net/wireless')
| -rw-r--r-- | net/wireless/scan.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/net/wireless/scan.c b/net/wireless/scan.c index abdf651a70d9..ef2955c89a00 100644 --- a/net/wireless/scan.c +++ b/net/wireless/scan.c @@ -364,13 +364,16 @@ const u8 *cfg80211_find_ie(u8 eid, const u8 *ies, int len) } EXPORT_SYMBOL(cfg80211_find_ie); -const u8 *cfg80211_find_vendor_ie(unsigned int oui, u8 oui_type, +const u8 *cfg80211_find_vendor_ie(unsigned int oui, int oui_type, const u8 *ies, int len) { struct ieee80211_vendor_ie *ie; const u8 *pos = ies, *end = ies + len; int ie_oui; + if (WARN_ON(oui_type > 0xff)) + return NULL; + while (pos < end) { pos = cfg80211_find_ie(WLAN_EID_VENDOR_SPECIFIC, pos, end - pos); @@ -386,7 +389,8 @@ const u8 *cfg80211_find_vendor_ie(unsigned int oui, u8 oui_type, goto cont; ie_oui = ie->oui[0] << 16 | ie->oui[1] << 8 | ie->oui[2]; - if (ie_oui == oui && ie->oui_type == oui_type) + if (ie_oui == oui && + (oui_type < 0 || ie->oui_type == oui_type)) return pos; cont: pos += 2 + ie->len; |