4.9-stable review patch. If anyone has any objections, please let me know.
------------------
From: Colin Ian King <colin.king@xxxxxxxxxxxxx>
[ Upstream commit 6cc0c259d034c6ab48f4e12f505213988e73d380 ]
Add a sanity check that wid.val has been allocated, fixes a null
pointer deference on stamac when calling ether_add_copy.
Detected by CoverityScan, CID#1369537 ("Dereference null return value")
Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/staging/wilc1000/host_interface.c | 2 ++
1 file changed, 2 insertions(+)
--- a/drivers/staging/wilc1000/host_interface.c
+++ b/drivers/staging/wilc1000/host_interface.c
@@ -1930,6 +1930,8 @@ static s32 Handle_Get_InActiveTime(struc
wid.type = WID_STR;
wid.size = ETH_ALEN;
wid.val = kmalloc(wid.size, GFP_KERNEL);
+ if (!wid.val)
+ return -ENOMEM;
stamac = wid.val;
memcpy(stamac, strHostIfStaInactiveT->mac, ETH_ALEN);