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[PATCH] Check ieee80211softmac_auth_resp kmalloc result 

And use kmemdup and kzalloc where applicable

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2006-11-21 01:26:49 -02:00 committed by Jeff Garzik
parent 8e87295b95
commit 571d6eee9b
3 changed files with 14 additions and 12 deletions
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5
net/ieee80211/ieee80211_module.c
View File

@ -67,7 +67,7 @@ static int ieee80211_networks_allocate(struct ieee80211_device *ieee)
return 0;
ieee->networks =
kmalloc(MAX_NETWORK_COUNT * sizeof(struct ieee80211_network),
kzalloc(MAX_NETWORK_COUNT * sizeof(struct ieee80211_network),
GFP_KERNEL);
if (!ieee->networks) {
printk(KERN_WARNING "%s: Out of memory allocating beacons\n",
@ -75,9 +75,6 @@ static int ieee80211_networks_allocate(struct ieee80211_device *ieee)
return -ENOMEM;
}
memset(ieee->networks, 0,
MAX_NETWORK_COUNT * sizeof(struct ieee80211_network));
return 0;
}

7
net/ieee80211/ieee80211_rx.c
View File

@ -1304,12 +1304,11 @@ static int ieee80211_parse_info_param(struct ieee80211_info_element
case MFIE_TYPE_IBSS_DFS:
if (network->ibss_dfs)
break;
network->ibss_dfs =
kmalloc(info_element->len, GFP_ATOMIC);
network->ibss_dfs = kmemdup(info_element->data,
info_element->len,
GFP_ATOMIC);
if (!network->ibss_dfs)
return 1;
memcpy(network->ibss_dfs, info_element->data,
info_element->len);
network->flags |= NETWORK_HAS_IBSS_DFS;
break;

14
net/ieee80211/softmac/ieee80211softmac_auth.c
View File

@ -216,10 +216,16 @@ ieee80211softmac_auth_resp(struct net_device *dev, struct ieee80211_auth *auth)
net->challenge_len = *data++;
if (net->challenge_len > WLAN_AUTH_CHALLENGE_LEN)
net->challenge_len = WLAN_AUTH_CHALLENGE_LEN;
if (net->challenge != NULL)
kfree(net->challenge);
net->challenge = kmalloc(net->challenge_len, GFP_ATOMIC);
memcpy(net->challenge, data, net->challenge_len);
kfree(net->challenge);
net->challenge = kmemdup(data, net->challenge_len,
GFP_ATOMIC);
if (net->challenge == NULL) {
printkl(KERN_NOTICE PFX "Shared Key "
"Authentication failed due to "
"memory shortage.\n");
spin_unlock_irqrestore(&mac->lock, flags);
break;
}
aq->state = IEEE80211SOFTMAC_AUTH_SHARED_RESPONSE;
/* We reuse the work struct from the auth request here.