From: Jérôme Pouiller <jerome.pouiller@xxxxxxxxxx>
array_index_nospec() should be applied after a bound check.
Fixes: 9bca45f3d692 ("staging: wfx: allow to send 802.11 frames")
Reported-by: kbuild test robot <lkp@xxxxxxxxx>
Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Signed-off-by: Jérôme Pouiller <jerome.pouiller@xxxxxxxxxx>
---
v2: cut down commit-id to 12 characters
v3: fix missing include
drivers/staging/wfx/wfx.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/staging/wfx/wfx.h b/drivers/staging/wfx/wfx.h
index 489836837b0a..d678b5a08873 100644
--- a/drivers/staging/wfx/wfx.h
+++ b/drivers/staging/wfx/wfx.h
@@ -13,6 +13,7 @@
#include <linux/completion.h>
#include <linux/workqueue.h>
#include <linux/mutex.h>
+#include <linux/nospec.h>
#include <net/mac80211.h>
#include "bh.h"
@@ -138,6 +139,7 @@ static inline struct wfx_vif *wdev_to_wvif(struct wfx_dev *wdev, int vif_id)
dev_dbg(wdev->dev, "requesting non-existent vif: %d\n", vif_id);
return NULL;
}
+ vif_id = array_index_nospec(vif_id, ARRAY_SIZE(wdev->vif));
if (!wdev->vif[vif_id]) {
dev_dbg(wdev->dev, "requesting non-allocated vif: %d\n", vif_id);
return NULL;
--
2.20.1
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