From patchwork Tue Nov 8 18:56:26 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bitterblue Smith X-Patchwork-Id: 622905 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E7753C433FE for ; Tue, 8 Nov 2022 18:56:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229557AbiKHS4b (ORCPT ); Tue, 8 Nov 2022 13:56:31 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49784 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229530AbiKHS4a (ORCPT ); Tue, 8 Nov 2022 13:56:30 -0500 Received: from mail-ej1-x636.google.com (mail-ej1-x636.google.com [IPv6:2a00:1450:4864:20::636]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 524816A682 for ; Tue, 8 Nov 2022 10:56:29 -0800 (PST) Received: by mail-ej1-x636.google.com with SMTP id t25so41006907ejb.8 for ; Tue, 08 Nov 2022 10:56:29 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-transfer-encoding:in-reply-to:references:cc:to:from :content-language:subject:user-agent:mime-version:date:message-id :from:to:cc:subject:date:message-id:reply-to; bh=2btLF8jbiCminjKUScT17x40EjHZF8d0H12GZhCjv6A=; b=mGveFu752j7HsymORU4PtaGhhqd6y7vQzXXOk6sEO/0cEbv8Kw9E9D8eMPSQM1J9y5 GMobLGO3DuQ0Yag37bCviVTyFTyVyeqK/zo+t/1AuPUQKlk0MBggwIoxs50Ik8wB8RCQ D65Lk0KTq4tSrAyyyufyEWQFnvdWM4wHFIN0ScA34FHg1Zz46wJ13CXtuSNLVV4SwUs0 vIGPuhzkdJTfgHKPg4hIMa9xHQxPLbrXpvYTSDZA3abrIDKOTxZ010oaQclXL/QJvXgk +ZGJ09xlT4PRqJgQySM2Y1RbGJNtA6cRi2LkM+ZEfvqMkcKtmqjQJ/r9Qsi42chdvbKl lG7A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:in-reply-to:references:cc:to:from :content-language:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=2btLF8jbiCminjKUScT17x40EjHZF8d0H12GZhCjv6A=; b=GSIHJtU2ji76VoPH2XmMmwTljRgXkWiAM4OJOWR3ILbk6D7U6NQ9sPqk8uPaXeUb7T IS9D+t9Vfs56QoqZgFEqGdn5dCVWWMGkZ3TBM/ctA+TA1G5xf17tJHu0Oy0YNSSGnmwL VmSFhAlnasl41A/3IBPSyjn+N3L7Gngd+zg5TaBV0D8fFTjaL/ICgkBu/REYeWlgo7TC rH535RcVRbsWsbKFfBLEh2t0gN+iAPYoCmWvjle+npA7XZPsBXsl1/P4oY8s+iXLuaSs BsUf11cFPchbb7BOxtdkekflQTfrOm5gQuoIfU2ji3/nZdnAgEzpV3xKrIR1irMaef50 x5Ew== X-Gm-Message-State: ACrzQf3tZdqNxwcl4C2H6dhUPqoV+gatWMkIIVbO4P77qQmKT9Z/ut7E tp45rOwvZwzskb1TizLeoO04GVvOVzc= X-Google-Smtp-Source: AA0mqf6TCjDMBFpbg6PBxH1LMdWZ/nbrgA1s4VevI7KlIulUjSwdPpmLUmDNFpWWkDjggYaUN73oVw== X-Received: by 2002:a17:907:162b:b0:7ae:4ed4:1503 with SMTP id hb43-20020a170907162b00b007ae4ed41503mr17539688ejc.485.1667933787709; Tue, 08 Nov 2022 10:56:27 -0800 (PST) Received: from [192.168.1.50] ([81.196.40.23]) by smtp.gmail.com with ESMTPSA id la24-20020a170907781800b00770812e2394sm4950487ejc.160.2022.11.08.10.56.26 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 08 Nov 2022 10:56:27 -0800 (PST) Message-ID: <1db11152-efc1-2027-565a-a0373cccd117@gmail.com> Date: Tue, 8 Nov 2022 20:56:26 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.3.3 Subject: [PATCH 2/3] wifi: rtl8xxxu: Use strscpy instead of sprintf Content-Language: en-US From: Bitterblue Smith To: "linux-wireless@vger.kernel.org" Cc: Jes Sorensen , Ping-Ke Shih References: <91f59414-86f7-f0ed-a138-19f0ab63bb0b@gmail.com> In-Reply-To: <91f59414-86f7-f0ed-a138-19f0ab63bb0b@gmail.com> Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org Fill priv->chip_name and priv->chip_vendor with strscpy instead of sprintf. This is just to prevent future bugs in case the name of a chip/vendor becomes longer than the size of chip_name/chip_vendor. Suggested-by: Ping-Ke Shih Signed-off-by: Bitterblue Smith Reviewed-by: Ping-Ke Shih --- This patch should be applied after my older patch: "[PATCH v2 2/3] wifi: rtl8xxxu: Split up rtl8xxxu_identify_chip" --- .../net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188f.c | 2 +- .../net/wireless/realtek/rtl8xxxu/rtl8xxxu_8192c.c | 8 ++++---- .../net/wireless/realtek/rtl8xxxu/rtl8xxxu_8192e.c | 4 ++-- .../net/wireless/realtek/rtl8xxxu/rtl8xxxu_8723a.c | 2 +- .../net/wireless/realtek/rtl8xxxu/rtl8xxxu_8723b.c | 2 +- .../net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c | 12 ++++++------ 6 files changed, 15 insertions(+), 15 deletions(-) diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188f.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188f.c index 0f77312dd0ca..ef38891ddbd1 100644 --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188f.c +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188f.c @@ -327,7 +327,7 @@ static int rtl8188fu_identify_chip(struct rtl8xxxu_priv *priv) u32 sys_cfg, vendor; int ret = 0; - sprintf(priv->chip_name, "8188FU"); + strscpy(priv->chip_name, "8188FU", sizeof(priv->chip_name)); priv->rtl_chip = RTL8188F; priv->rf_paths = 1; priv->rx_paths = 1; diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8192c.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8192c.c index 815c1e278e4e..6c443e4822d8 100644 --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8192c.c +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8192c.c @@ -345,12 +345,12 @@ int rtl8192cu_identify_chip(struct rtl8xxxu_priv *priv) bonding = rtl8xxxu_read32(priv, REG_HPON_FSM); bonding &= HPON_FSM_BONDING_MASK; if (bonding == HPON_FSM_BONDING_1T2R) { - sprintf(priv->chip_name, "8191CU"); + strscpy(priv->chip_name, "8191CU", sizeof(priv->chip_name)); priv->tx_paths = 1; priv->usb_interrupts = 1; priv->rtl_chip = RTL8191C; } else { - sprintf(priv->chip_name, "8192CU"); + strscpy(priv->chip_name, "8192CU", sizeof(priv->chip_name)); priv->tx_paths = 2; priv->usb_interrupts = 0; priv->rtl_chip = RTL8192C; @@ -358,7 +358,7 @@ int rtl8192cu_identify_chip(struct rtl8xxxu_priv *priv) priv->rf_paths = 2; priv->rx_paths = 2; } else { - sprintf(priv->chip_name, "8188CU"); + strscpy(priv->chip_name, "8188CU", sizeof(priv->chip_name)); priv->rf_paths = 1; priv->rx_paths = 1; priv->tx_paths = 1; @@ -451,7 +451,7 @@ static int rtl8192cu_parse_efuse(struct rtl8xxxu_priv *priv) priv->power_base = &rtl8192c_power_base; if (efuse->rf_regulatory & 0x20) { - sprintf(priv->chip_name, "8188RU"); + strscpy(priv->chip_name, "8188RU", sizeof(priv->chip_name)); priv->rtl_chip = RTL8188R; priv->hi_pa = 1; priv->no_pape = 1; diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8192e.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8192e.c index 7a182073832b..fc3336f18892 100644 --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8192e.c +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8192e.c @@ -496,11 +496,11 @@ int rtl8192eu_identify_chip(struct rtl8xxxu_priv *priv) bonding = rtl8xxxu_read32(priv, REG_HPON_FSM); bonding &= HPON_FSM_BONDING_MASK; if (bonding == HPON_FSM_BONDING_1T2R) { - sprintf(priv->chip_name, "8191EU"); + strscpy(priv->chip_name, "8191EU", sizeof(priv->chip_name)); priv->tx_paths = 1; priv->rtl_chip = RTL8191E; } else { - sprintf(priv->chip_name, "8192EU"); + strscpy(priv->chip_name, "8192EU", sizeof(priv->chip_name)); priv->tx_paths = 2; priv->rtl_chip = RTL8192E; } diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8723a.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8723a.c index 33a1114a5853..c8ab71ed4ff4 100644 --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8723a.c +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8723a.c @@ -144,7 +144,7 @@ static int rtl8723au_identify_chip(struct rtl8xxxu_priv *priv) goto out; } - sprintf(priv->chip_name, "8723AU"); + strscpy(priv->chip_name, "8723AU", sizeof(priv->chip_name)); priv->usb_interrupts = 1; priv->rtl_chip = RTL8723A; diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8723b.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8723b.c index 558572bdd2c8..ece82e613bf0 100644 --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8723b.c +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8723b.c @@ -319,7 +319,7 @@ static int rtl8723bu_identify_chip(struct rtl8xxxu_priv *priv) goto out; } - sprintf(priv->chip_name, "8723BU"); + strscpy(priv->chip_name, "8723BU", sizeof(priv->chip_name)); priv->rtl_chip = RTL8723B; priv->rf_paths = 1; priv->rx_paths = 1; diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c index e4eb17d03cd7..e8fcd531c437 100644 --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c @@ -1592,10 +1592,10 @@ static void rtl8xxxu_print_chipinfo(struct rtl8xxxu_priv *priv) void rtl8xxxu_identify_vendor_1bit(struct rtl8xxxu_priv *priv, u32 vendor) { if (vendor) { - sprintf(priv->chip_vendor, "UMC"); + strscpy(priv->chip_vendor, "UMC", sizeof(priv->chip_vendor)); priv->vendor_umc = 1; } else { - sprintf(priv->chip_vendor, "TSMC"); + strscpy(priv->chip_vendor, "TSMC", sizeof(priv->chip_vendor)); } } @@ -1603,18 +1603,18 @@ void rtl8xxxu_identify_vendor_2bits(struct rtl8xxxu_priv *priv, u32 vendor) { switch (vendor) { case SYS_CFG_VENDOR_ID_TSMC: - sprintf(priv->chip_vendor, "TSMC"); + strscpy(priv->chip_vendor, "TSMC", sizeof(priv->chip_vendor)); break; case SYS_CFG_VENDOR_ID_SMIC: - sprintf(priv->chip_vendor, "SMIC"); + strscpy(priv->chip_vendor, "SMIC", sizeof(priv->chip_vendor)); priv->vendor_smic = 1; break; case SYS_CFG_VENDOR_ID_UMC: - sprintf(priv->chip_vendor, "UMC"); + strscpy(priv->chip_vendor, "UMC", sizeof(priv->chip_vendor)); priv->vendor_umc = 1; break; default: - sprintf(priv->chip_vendor, "unknown"); + strscpy(priv->chip_vendor, "unknown", sizeof(priv->chip_vendor)); } }