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From: Florian Fainelli <f.fainelli@gmail.com>
To: brcm80211-dev-list.pdl@broadcom.com
Cc: linux-wireless@vger.kernel.org, pieterpg@broadcom.com,
	kvalo@codeaurora.org, arend.vanspriel@broadcom.com,
	hante.meuleman@broadcom.com,
	Florian Fainelli <f.fainelli@gmail.com>
Subject: [PATCH 3/4] brcmsmac: Fix invalid memcpy() size in brcms_c_d11hdrs_mac80211
Date: Mon, 18 Jul 2016 16:24:36 -0700	[thread overview]
Message-ID: <1468884277-18606-4-git-send-email-f.fainelli@gmail.com> (raw)
In-Reply-To: <1468884277-18606-1-git-send-email-f.fainelli@gmail.com>

struct ieee80211_rts::ra is only ETH_ALEN wide, yet we attempt to copy 2
* ETH_ALEN, which will potentially overrun the destination buffer.

Reported-by: coverity (CID 145657)
Fixes: 5b435de0d7868 ("net: wireless: add brcm80211 drivers")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
 drivers/net/wireless/broadcom/brcm80211/brcmsmac/main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/main.c b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/main.c
index c2a938b59044..59813a3666eb 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/main.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/main.c
@@ -6671,7 +6671,7 @@ brcms_c_d11hdrs_mac80211(struct brcms_c_info *wlc, struct ieee80211_hw *hw,
 			rts->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
 							 IEEE80211_STYPE_RTS);
 
-			memcpy(&rts->ra, &h->addr1, 2 * ETH_ALEN);
+			memcpy(&rts->ra, &h->addr1, ETH_ALEN);
 		}
 
 		/* mainrate
-- 
2.7.4


  parent reply	other threads:[~2016-07-18 23:24 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-07-18 23:24 [PATCH 0/4] brcm80211: Misc coverity fixes Florian Fainelli
2016-07-18 23:24 ` [PATCH 1/4] brcmfmac: Fix glob_skb leak in brcmf_sdiod_recv_chain Florian Fainelli
2016-07-19 10:19   ` Arend Van Spriel
2016-07-19 18:14   ` [1/4] " Kalle Valo
2016-07-18 23:24 ` [PATCH 2/4] brcmsmac: Free packet if dma_mapping_error() fails in dma_rxfill Florian Fainelli
2016-07-19  9:25   ` Arend Van Spriel
2016-07-18 23:24 ` Florian Fainelli [this message]
2016-07-19 10:38   ` [PATCH 3/4] brcmsmac: Fix invalid memcpy() size in brcms_c_d11hdrs_mac80211 Arend Van Spriel
2016-07-19 12:40     ` Kalle Valo
2016-07-19 16:42     ` Florian Fainelli
2016-07-19 18:26       ` Arend Van Spriel
2016-07-18 23:24 ` [PATCH 4/4] brcmsmac: Initialize power in brcms_c_stf_ss_algo_channel_get() Florian Fainelli
2016-07-19 10:26   ` Arend Van Spriel
2016-07-19  9:20 ` [PATCH 0/4] brcm80211: Misc coverity fixes Arend Van Spriel
2016-07-19 16:41   ` Florian Fainelli
2016-07-19 18:21     ` Arend Van Spriel
2016-07-19 18:30       ` Florian Fainelli
2016-07-19 19:36         ` Arend Van Spriel
2016-07-19 20:09           ` Florian Fainelli

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