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[92.34.215.146]) by smtp.gmail.com with ESMTPSA id z7sm568979lfc.59.2020.09.01.15.10.10 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 01 Sep 2020 15:10:10 -0700 (PDT) From: Linus Walleij To: Andrew Lunn , Vivien Didelot , Florian Fainelli , netdev@vger.kernel.org, "David S . Miller" Cc: Linus Walleij Subject: [net-next PATCH 1/2 v3] net: dsa: rtl8366: Check validity of passed VLANs Date: Wed, 2 Sep 2020 00:09:34 +0200 Message-Id: <20200901220935.45524-2-linus.walleij@linaro.org> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200901220935.45524-1-linus.walleij@linaro.org> References: <20200901220935.45524-1-linus.walleij@linaro.org> MIME-Version: 1.0 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org The rtl8366_set_vlan() and rtl8366_set_pvid() get invalid VLANs tossed at it, especially VLAN0, something the hardware and driver cannot handle. Check validity and bail out like we do in the other callbacks. Reviewed-by: Florian Fainelli Signed-off-by: Linus Walleij --- ChangeLog v2->v3: - Resending with the other patch. - Collect Florian's review tag. ChangeLog v1->v2: - Resending with the other patch. --- drivers/net/dsa/rtl8366.c | 6 ++++++ 1 file changed, 6 insertions(+) -- 2.26.2 diff --git a/drivers/net/dsa/rtl8366.c b/drivers/net/dsa/rtl8366.c index 8f40fbf70a82..7c34c991c834 100644 --- a/drivers/net/dsa/rtl8366.c +++ b/drivers/net/dsa/rtl8366.c @@ -43,6 +43,9 @@ int rtl8366_set_vlan(struct realtek_smi *smi, int vid, u32 member, int ret; int i; + if (!smi->ops->is_vlan_valid(smi, vid)) + return -EINVAL; + dev_dbg(smi->dev, "setting VLAN%d 4k members: 0x%02x, untagged: 0x%02x\n", vid, member, untag); @@ -118,6 +121,9 @@ int rtl8366_set_pvid(struct realtek_smi *smi, unsigned int port, int ret; int i; + if (!smi->ops->is_vlan_valid(smi, vid)) + return -EINVAL; + /* Try to find an existing MC entry for this VID */ for (i = 0; i < smi->num_vlan_mc; i++) { ret = smi->ops->get_vlan_mc(smi, i, &vlanmc);