[PATCH v2] wlags49_h2: Fix overflow in wireless_set_essid()

From: Maurizio Lombardi
Date: Thu Nov 28 2013 - 07:53:09 EST


This patch prevents the wireless_set_essid() function from overwriting
the last byte of the NetworkName buffer which must be NULL.

Signed-off-by: Maurizio Lombardi <mlombard@xxxxxxxxxx>
---
drivers/staging/wlags49_h2/wl_wext.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/wlags49_h2/wl_wext.c b/drivers/staging/wlags49_h2/wl_wext.c
index c731ff2..62ad158 100644
--- a/drivers/staging/wlags49_h2/wl_wext.c
+++ b/drivers/staging/wlags49_h2/wl_wext.c
@@ -1127,7 +1127,7 @@ static int wireless_set_essid(struct net_device *dev, struct iw_request_info *in
goto out;
}

- if (data->flags != 0 && data->length > HCF_MAX_NAME_LEN + 1) {
+ if (data->flags != 0 && data->length > HCF_MAX_NAME_LEN) {
ret = -EINVAL;
goto out;
}
--
1.8.3.1



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