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[86.49.245.188]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-43d1e4e221bsm1317924f8f.29.2026.04.01.10.39.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 01 Apr 2026 10:39:59 -0700 (PDT) From: Joshua David Crofts To: gregkh@linuxfoundation.org Cc: joshua.crofts1@gmail.com, grondon@gmail.com, linux-staging@lists.linux.dev, linux-kernel@vger.kernel.org Subject: [PATCH] staging: rtl8723bs: Use array_size() in rtw_spt_band_alloc Date: Wed, 1 Apr 2026 19:39:17 +0200 Message-Id: <20260401173917.2946-1-joshua.crofts1@gmail.com> X-Mailer: git-send-email 2.39.5 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Replaced raw multiplication with array_size() macro to prevent integer overflows. Found using Coccinelle. Signed-off-by: Joshua David Crofts --- drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c b/drivers/st= aging/rtl8723bs/os_dep/ioctl_cfg80211.c index 098456e97..7f0ca5a5e 100644 --- a/drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c +++ b/drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c @@ -128,7 +128,8 @@ static struct ieee80211_supported_band *rtw_spt_band_al= loc( goto exit; =20 spt_band->channels =3D (struct ieee80211_channel *)(((u8 *)spt_band) + si= zeof(struct ieee80211_supported_band)); - spt_band->bitrates =3D (struct ieee80211_rate *)(((u8 *)spt_band->channel= s) + sizeof(struct ieee80211_channel) * n_channels); + spt_band->bitrates =3D (struct ieee80211_rate *)(((u8 *)spt_band->channel= s) + + array_size(n_channels, sizeof(struct ieee80211_channel))); spt_band->band =3D band; spt_band->n_channels =3D n_channels; spt_band->n_bitrates =3D n_bitrates; --=20 2.47.3