From 904f137d478215b7c5c1daabae03618ed2f703cf Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Wed, 28 Nov 2012 21:53:45 +0100 Subject: [PATCH] mwifiex: fix struct member mismatch Using bss->information_elements and treating bss->len_beacon_ies as its size is wrong, the real size is len_information_elements. Found while I was reviewing the use of this cfg80211 API (as it is actually potentially broken due to races.) Signed-off-by: Johannes Berg Acked-by: Bing Zhao Signed-off-by: John W. Linville --- drivers/net/wireless/mwifiex/sta_ioctl.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/mwifiex/sta_ioctl.c b/drivers/net/wireless/mwifiex/sta_ioctl.c index 237c8d2ba9f2..cf8918c044bb 100644 --- a/drivers/net/wireless/mwifiex/sta_ioctl.c +++ b/drivers/net/wireless/mwifiex/sta_ioctl.c @@ -161,8 +161,9 @@ int mwifiex_fill_new_bss_desc(struct mwifiex_private *priv, int ret; u8 *beacon_ie; struct mwifiex_bss_priv *bss_priv = (void *)bss->priv; + size_t beacon_ie_len = bss->len_information_elements; - beacon_ie = kmemdup(bss->information_elements, bss->len_beacon_ies, + beacon_ie = kmemdup(bss->information_elements, beacon_ie_len, GFP_KERNEL); if (!beacon_ie) { dev_err(priv->adapter->dev, " failed to alloc beacon_ie\n"); @@ -172,7 +173,7 @@ int mwifiex_fill_new_bss_desc(struct mwifiex_private *priv, memcpy(bss_desc->mac_address, bss->bssid, ETH_ALEN); bss_desc->rssi = bss->signal; bss_desc->beacon_buf = beacon_ie; - bss_desc->beacon_buf_size = bss->len_beacon_ies; + bss_desc->beacon_buf_size = beacon_ie_len; bss_desc->beacon_period = bss->beacon_interval; bss_desc->cap_info_bitmap = bss->capability; bss_desc->bss_band = bss_priv->band; -- 2.30.2