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wifi: cfg80211: check BSSID Index against MaxBSSID
Add a verification that the BSSID Index does not exceed the maximum number of BSSIDs in the Multiple-BSSID set. Signed-off-by: Benjamin Berg <benjamin.berg@intel.com> Reviewed-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com> Link: https://msgid.link/20240318184907.a7574d415adc.I02f40c2920a9f602898190679cc27d0c8ee2c67d@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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@ -2447,7 +2447,8 @@ cfg80211_parse_mbssid_data(struct wiphy *wiphy,
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profile, profile_len);
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if (!mbssid_index_ie || mbssid_index_ie[1] < 1 ||
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mbssid_index_ie[2] == 0 ||
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mbssid_index_ie[2] > 46) {
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mbssid_index_ie[2] > 46 ||
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mbssid_index_ie[2] >= (1 << elem->data[0])) {
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/* No valid Multiple BSSID-Index element */
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continue;
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}
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