From: Oscar Carter <oscar.carter@xxxxxxx> [ Upstream commit a4338ed2e1cf724563956ec5f91deeaabfedbe23 ] Increase by one the size of wid_list array as index variable can reach a value of 5. If this happens, an out-of-bounds access is performed. Also, use a #define instead of a hard-coded literal for the new array size. Addresses-Coverity-ID: 1451981 ("Out-of-bounds access") Fixes: f5a3cb90b802d ("staging: wilc1000: add passive scan support") Acked-by: Ajay Singh <ajay.kathat@xxxxxxxxxxxxx> Signed-off-by: Oscar Carter <oscar.carter@xxxxxxx> Link: https://lore.kernel.org/r/20200504150911.4470-1-oscar.carter@xxxxxxx Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- drivers/staging/wilc1000/hif.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/staging/wilc1000/hif.c b/drivers/staging/wilc1000/hif.c index 6c7de2f8d3f26..d025a30930157 100644 --- a/drivers/staging/wilc1000/hif.c +++ b/drivers/staging/wilc1000/hif.c @@ -11,6 +11,8 @@ #define WILC_FALSE_FRMWR_CHANNEL 100 +#define WILC_SCAN_WID_LIST_SIZE 6 + struct wilc_rcvd_mac_info { u8 status; }; @@ -151,7 +153,7 @@ int wilc_scan(struct wilc_vif *vif, u8 scan_source, u8 scan_type, void *user_arg, struct cfg80211_scan_request *request) { int result = 0; - struct wid wid_list[5]; + struct wid wid_list[WILC_SCAN_WID_LIST_SIZE]; u32 index = 0; u32 i, scan_timeout; u8 *buffer; -- 2.25.1