* [PATCH] Staging: rtl8712: fix potential null pointer dereference
@ 2015-03-11 13:31 Matteo Semenzato
0 siblings, 0 replies; only message in thread
From: Matteo Semenzato @ 2015-03-11 13:31 UTC (permalink / raw)
To: gregkh, Larry.Finger, florian.c.schilhabel, shack, vitaly.osipov,
peter.senna, vthakkar1994, cengelma, sudipm.mukherjee,
tapaswenipathak
Cc: devel, linux-kernel, Matteo Semenzato
From: Matteo Semenzato <mattew8898@gmail.com>
Check if kmalloc succeded before using the pointer in memcpy.
Signed-off-by: Matteo Semenzato <mattew8898@gmail.com>
---
drivers/staging/rtl8712/rtl871x_mlme.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/staging/rtl8712/rtl871x_mlme.c b/drivers/staging/rtl8712/rtl871x_mlme.c
index 977a833..c6e9012 100644
--- a/drivers/staging/rtl8712/rtl871x_mlme.c
+++ b/drivers/staging/rtl8712/rtl871x_mlme.c
@@ -727,6 +727,8 @@ void r8712_joinbss_event_callback(struct _adapter *adapter, u8 *pbuf)
if (sizeof(struct list_head) == 4 * sizeof(u32)) {
pnetwork = kmalloc(sizeof(struct wlan_network), GFP_ATOMIC);
+ if (!pnetwork)
+ return;
memcpy((u8 *)pnetwork+16, (u8 *)pbuf + 8,
sizeof(struct wlan_network) - 16);
} else
--
2.3.2
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