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- From 1b5e2423164b3670e8bc9174e4762d297990deff Mon Sep 17 00:00:00 2001
- From: Arend van Spriel <[email protected]>
- Date: Thu, 14 Feb 2019 13:43:47 +0100
- Subject: [PATCH] brcmfmac: assure SSID length from firmware is limited
- The SSID length as received from firmware should not exceed
- IEEE80211_MAX_SSID_LEN as that would result in heap overflow.
- Reviewed-by: Hante Meuleman <[email protected]>
- Reviewed-by: Pieter-Paul Giesberts <[email protected]>
- Reviewed-by: Franky Lin <[email protected]>
- Signed-off-by: Arend van Spriel <[email protected]>
- Signed-off-by: Kalle Valo <[email protected]>
- ---
- drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c | 2 ++
- 1 file changed, 2 insertions(+)
- --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
- +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
- @@ -3499,6 +3499,8 @@ brcmf_wowl_nd_results(struct brcmf_if *i
- }
-
- netinfo = brcmf_get_netinfo_array(pfn_result);
- + if (netinfo->SSID_len > IEEE80211_MAX_SSID_LEN)
- + netinfo->SSID_len = IEEE80211_MAX_SSID_LEN;
- memcpy(cfg->wowl.nd->ssid.ssid, netinfo->SSID, netinfo->SSID_len);
- cfg->wowl.nd->ssid.ssid_len = netinfo->SSID_len;
- cfg->wowl.nd->n_channels = 1;
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