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[01/32] staging: wfx: add sanity checks to hif_join()

Message ID 20200401110405.80282-2-Jerome.Pouiller@silabs.com
State New
Headers show
Series [01/32] staging: wfx: add sanity checks to hif_join() | expand

Commit Message

Jérôme Pouiller April 1, 2020, 11:03 a.m. UTC 
From: Jérôme Pouiller <jerome.pouiller@silabs.com>

Add a few check on start of hif_join().

Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
---
 drivers/staging/wfx/hif_tx.c | 2 ++
 1 file changed, 2 insertions(+)
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Patch

diff --git a/drivers/staging/wfx/hif_tx.c b/drivers/staging/wfx/hif_tx.c
index 77bca43aca42..445906035e9d 100644
--- a/drivers/staging/wfx/hif_tx.c
+++ b/drivers/staging/wfx/hif_tx.c
@@ -297,6 +297,8 @@  int hif_join(struct wfx_vif *wvif, const struct ieee80211_bss_conf *conf,
 	struct hif_req_join *body = wfx_alloc_hif(sizeof(*body), &hif);
 
 	WARN_ON(!conf->basic_rates);
+	WARN_ON(sizeof(body->ssid) < ssidlen);
+	WARN(!conf->ibss_joined && !ssidlen, "joining an unknown BSS");
 	body->infrastructure_bss_mode = !conf->ibss_joined;
 	body->short_preamble = conf->use_short_preamble;
 	if (channel && channel->flags & IEEE80211_CHAN_NO_IR)