From: Haoyu Li Date: Tue, 3 Dec 2024 15:20:49 +0000 (+0800) Subject: wifi: cfg80211: sme: init n_channels before channels[] access X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=f1d3334d604cc32db63f6e2b3283011e02294e54;p=users%2Fdwmw2%2Flinux.git wifi: cfg80211: sme: init n_channels before channels[] access With the __counted_by annocation in cfg80211_scan_request struct, the "n_channels" struct member must be set before accessing the "channels" array. Failing to do so will trigger a runtime warning when enabling CONFIG_UBSAN_BOUNDS and CONFIG_FORTIFY_SOURCE. Fixes: e3eac9f32ec0 ("wifi: cfg80211: Annotate struct cfg80211_scan_request with __counted_by") Signed-off-by: Haoyu Li Link: https://patch.msgid.link/20241203152049.348806-1-lihaoyu499@gmail.com Signed-off-by: Johannes Berg --- diff --git a/net/wireless/sme.c b/net/wireless/sme.c index 431da30817a6f..2681716000876 100644 --- a/net/wireless/sme.c +++ b/net/wireless/sme.c @@ -83,6 +83,7 @@ static int cfg80211_conn_scan(struct wireless_dev *wdev) if (!request) return -ENOMEM; + request->n_channels = n_channels; if (wdev->conn->params.channel) { enum nl80211_band band = wdev->conn->params.channel->band; struct ieee80211_supported_band *sband =