diff options
Diffstat (limited to 'net/wireless/scan.c')
-rw-r--r-- | net/wireless/scan.c | 50 |
1 files changed, 33 insertions, 17 deletions
diff --git a/net/wireless/scan.c b/net/wireless/scan.c index 127853877a0a..2f2a3163968a 100644 --- a/net/wireless/scan.c +++ b/net/wireless/scan.c @@ -812,6 +812,7 @@ static int cfg80211_scan_6ghz(struct cfg80211_registered_device *rdev) LIST_HEAD(coloc_ap_list); bool need_scan_psc = true; const struct ieee80211_sband_iftype_data *iftd; + size_t size, offs_ssids, offs_6ghz_params, offs_ies; rdev_req->scan_6ghz = true; @@ -877,10 +878,15 @@ static int cfg80211_scan_6ghz(struct cfg80211_registered_device *rdev) spin_unlock_bh(&rdev->bss_lock); } - request = kzalloc(struct_size(request, channels, n_channels) + - sizeof(*request->scan_6ghz_params) * count + - sizeof(*request->ssids) * rdev_req->n_ssids, - GFP_KERNEL); + size = struct_size(request, channels, n_channels); + offs_ssids = size; + size += sizeof(*request->ssids) * rdev_req->n_ssids; + offs_6ghz_params = size; + size += sizeof(*request->scan_6ghz_params) * count; + offs_ies = size; + size += rdev_req->ie_len; + + request = kzalloc(size, GFP_KERNEL); if (!request) { cfg80211_free_coloc_ap_list(&coloc_ap_list); return -ENOMEM; @@ -888,8 +894,26 @@ static int cfg80211_scan_6ghz(struct cfg80211_registered_device *rdev) *request = *rdev_req; request->n_channels = 0; - request->scan_6ghz_params = - (void *)&request->channels[n_channels]; + request->n_6ghz_params = 0; + if (rdev_req->n_ssids) { + /* + * Add the ssids from the parent scan request to the new + * scan request, so the driver would be able to use them + * in its probe requests to discover hidden APs on PSC + * channels. + */ + request->ssids = (void *)request + offs_ssids; + memcpy(request->ssids, rdev_req->ssids, + sizeof(*request->ssids) * request->n_ssids); + } + request->scan_6ghz_params = (void *)request + offs_6ghz_params; + + if (rdev_req->ie_len) { + void *ie = (void *)request + offs_ies; + + memcpy(ie, rdev_req->ie, rdev_req->ie_len); + request->ie = ie; + } /* * PSC channels should not be scanned in case of direct scan with 1 SSID @@ -978,17 +1002,8 @@ skip: if (request->n_channels) { struct cfg80211_scan_request *old = rdev->int_scan_req; - rdev->int_scan_req = request; - /* - * Add the ssids from the parent scan request to the new scan - * request, so the driver would be able to use them in its - * probe requests to discover hidden APs on PSC channels. - */ - request->ssids = (void *)&request->channels[request->n_channels]; - request->n_ssids = rdev_req->n_ssids; - memcpy(request->ssids, rdev_req->ssids, sizeof(*request->ssids) * - request->n_ssids); + rdev->int_scan_req = request; /* * If this scan follows a previous scan, save the scan start @@ -2128,7 +2143,8 @@ static bool cfg80211_6ghz_power_type_valid(const u8 *ie, size_t ielen, struct ieee80211_he_operation *he_oper; tmp = cfg80211_find_ext_elem(WLAN_EID_EXT_HE_OPERATION, ie, ielen); - if (tmp && tmp->datalen >= sizeof(*he_oper) + 1) { + if (tmp && tmp->datalen >= sizeof(*he_oper) + 1 && + tmp->datalen >= ieee80211_he_oper_size(tmp->data + 1)) { const struct ieee80211_he_6ghz_oper *he_6ghz_oper; he_oper = (void *)&tmp->data[1]; |