From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7A8A44FDA57; Thu, 17 Sep 2026 17:08:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789664940; cv=none; b=s4m+Oer0i3HBfAyiRKvggslS/rNuWaiUByqxxG/ah5P7zdTVyoyMk0s+uMhZYNhVcg8FLFJOmhvdRTxXIXeFASDNuI9UHWYclOiWn7aUzfeRFrhNHTd7qSFINoRsJVQfV4P8vZwL1UJ7wHmPib9esMpRKNuP6okCcVWw3PSjsVM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789664940; c=relaxed/simple; bh=gKHmaUecaIVVY7/wTGdXSSytRWvLWU2rux/exRDO2zk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=mOG6FC6zMNV8Dnu54heD1UX6RPEjenmLeIGsYnZ/EniXEcTvOkMOPYYHaBBQzxzQz3yURn41TsgBHv72C8gP4twYpdS9bnGcqpL3S1y7Le3uP5hYoRXGYUJpN6kHpmIhiNoUWTDgPyV+jaYB28HO8nAQvh2Nc4i7mWZPLJfUwhw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=f5qyoyXg; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="f5qyoyXg" Received: by smtp.kernel.org (Postfix) with ESMTPSA id CD0DB1F000FF; Thu, 17 Sep 2026 17:08:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1789664939; bh=OhgtW7Thv/y9nFpKDCOZvXxYPWus3tuTatNBWCrzXfU=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=f5qyoyXgfxaxJHlAngH7mTvGoJUdWNWwDyi3UceSqJxNTl5KUUY3M0Y2yppmBMjwE k7kTb9+GECxKunvieKlPOtT3WMiB+uyrKo71jjjGX3v2KsBxhAZn5pzAyoUgzoZ/cO e9KCP509xi+0cwVAs34Q56tCZwBuT0orucbSCp50= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Georgi Valkov , Francesco Dolcini , Johannes Berg , Sasha Levin Subject: [PATCH 6.18 0539/1250] wifi: mwifiex: replace one-element arrays with flexible array members Date: Thu, 17 Sep 2026 16:05:34 +0100 Message-ID: <20260917151606.551172302@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260917151551.901433442@linuxfoundation.org> References: <20260917151551.901433442@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.18-stable review patch. If anyone has any objections, please let me know. ------------------ From: Georgi Valkov [ Upstream commit 1cb5845a58d8e1f85d5766c6fbcbfddf96c212a1 ] Replace deprecated one-element arrays with flexible array members. CONFIG_FORTIFY_SOURCE reports the following warning when one-element arrays are used as variable-length buffers: sta_cmd.c:1033 mwifiex_sta_prepare_cmd memcpy: detected field-spanning write (size 84) of single field "domain->triplet" at .../marvell/mwifiex/sta_cmd.c:1033 (size 3) Convert affected structs to use flexible array members. - Preserve existing wire layouts. - Use DECLARE_FLEX_ARRAY() for structs inside affected unions. Tested-on: WRT3200ACM, OpenWrt Signed-off-by: Georgi Valkov Reviewed-by: Francesco Dolcini Link: https://patch.msgid.link/20260716001728.57799-1-gvalkov@gmail.com Signed-off-by: Johannes Berg Signed-off-by: Sasha Levin --- drivers/net/wireless/marvell/mwifiex/fw.h | 18 +++++++++--------- drivers/net/wireless/marvell/mwifiex/join.c | 8 ++++---- drivers/net/wireless/marvell/mwifiex/sta_cmd.c | 2 +- 3 files changed, 14 insertions(+), 14 deletions(-) diff --git a/drivers/net/wireless/marvell/mwifiex/fw.h b/drivers/net/wireless/marvell/mwifiex/fw.h index e9e8966069121..93561116959ac 100644 --- a/drivers/net/wireless/marvell/mwifiex/fw.h +++ b/drivers/net/wireless/marvell/mwifiex/fw.h @@ -823,7 +823,7 @@ struct chan_band_param_set { struct mwifiex_ie_types_chan_band_list_param_set { struct mwifiex_ie_types_header header; - struct chan_band_param_set chan_band_param[1]; + struct chan_band_param_set chan_band_param[]; } __packed; struct mwifiex_ie_types_rates_param_set { @@ -886,7 +886,7 @@ struct mwifiex_ie_types_wildcard_ssid_params { #define TSF_DATA_SIZE 8 struct mwifiex_ie_types_tsf_timestamp { struct mwifiex_ie_types_header header; - u8 tsf_data[1]; + u8 tsf_data[]; } __packed; struct mwifiex_cf_param_set { @@ -903,8 +903,8 @@ struct mwifiex_ibss_param_set { struct mwifiex_ie_types_ss_param_set { struct mwifiex_ie_types_header header; union { - struct mwifiex_cf_param_set cf_param_set[1]; - struct mwifiex_ibss_param_set ibss_param_set[1]; + DECLARE_FLEX_ARRAY(struct mwifiex_cf_param_set, cf_param_set); + DECLARE_FLEX_ARRAY(struct mwifiex_ibss_param_set, ibss_param_set); } cf_ibss; } __packed; @@ -922,8 +922,8 @@ struct mwifiex_ds_param_set { struct mwifiex_ie_types_phy_param_set { struct mwifiex_ie_types_header header; union { - struct mwifiex_fh_param_set fh_param_set[1]; - struct mwifiex_ds_param_set ds_param_set[1]; + DECLARE_FLEX_ARRAY(struct mwifiex_fh_param_set, fh_param_set); + DECLARE_FLEX_ARRAY(struct mwifiex_ds_param_set, ds_param_set); } fh_ds; } __packed; @@ -1383,7 +1383,7 @@ struct host_cmd_ds_802_11_snmp_mib { __le16 query_type; __le16 oid; __le16 buf_size; - u8 value[1]; + u8 value[]; } __packed; struct mwifiex_rate_scope { @@ -1551,7 +1551,7 @@ struct mwifiex_scan_cmd_config { * TLV_TYPE_CHANLIST, mwifiex_ie_types_chan_list_param_set * WLAN_EID_SSID, mwifiex_ie_types_ssid_param_set */ - u8 tlv_buf[1]; /* SSID TLV(s) and ChanList TLVs are stored + u8 tlv_buf[]; /* SSID TLV(s) and ChanList TLVs are stored here */ } __packed; @@ -1683,7 +1683,7 @@ struct host_cmd_ds_802_11_bg_scan_query_rsp { struct mwifiex_ietypes_domain_param_set { struct mwifiex_ie_types_header header; u8 country_code[IEEE80211_COUNTRY_STRING_LEN]; - struct ieee80211_country_ie_triplet triplet[1]; + struct ieee80211_country_ie_triplet triplet[]; } __packed; struct host_cmd_ds_802_11d_domain_info { diff --git a/drivers/net/wireless/marvell/mwifiex/join.c b/drivers/net/wireless/marvell/mwifiex/join.c index b48f7febaf03f..259140395d353 100644 --- a/drivers/net/wireless/marvell/mwifiex/join.c +++ b/drivers/net/wireless/marvell/mwifiex/join.c @@ -421,15 +421,15 @@ int mwifiex_cmd_802_11_associate(struct mwifiex_private *priv, phy_tlv = (struct mwifiex_ie_types_phy_param_set *) pos; phy_tlv->header.type = cpu_to_le16(WLAN_EID_DS_PARAMS); - phy_tlv->header.len = cpu_to_le16(sizeof(phy_tlv->fh_ds.ds_param_set)); - memcpy(&phy_tlv->fh_ds.ds_param_set, + phy_tlv->header.len = cpu_to_le16(sizeof(*phy_tlv->fh_ds.ds_param_set)); + memcpy(phy_tlv->fh_ds.ds_param_set, &bss_desc->phy_param_set.ds_param_set.current_chan, - sizeof(phy_tlv->fh_ds.ds_param_set)); + sizeof(*phy_tlv->fh_ds.ds_param_set)); pos += sizeof(phy_tlv->header) + le16_to_cpu(phy_tlv->header.len); ss_tlv = (struct mwifiex_ie_types_ss_param_set *) pos; ss_tlv->header.type = cpu_to_le16(WLAN_EID_CF_PARAMS); - ss_tlv->header.len = cpu_to_le16(sizeof(ss_tlv->cf_ibss.cf_param_set)); + ss_tlv->header.len = cpu_to_le16(sizeof(*ss_tlv->cf_ibss.cf_param_set)); pos += sizeof(ss_tlv->header) + le16_to_cpu(ss_tlv->header.len); /* Get the common rates supported between the driver and the BSS Desc */ diff --git a/drivers/net/wireless/marvell/mwifiex/sta_cmd.c b/drivers/net/wireless/marvell/mwifiex/sta_cmd.c index dcca71158fc68..0a0458e15e289 100644 --- a/drivers/net/wireless/marvell/mwifiex/sta_cmd.c +++ b/drivers/net/wireless/marvell/mwifiex/sta_cmd.c @@ -108,7 +108,7 @@ static int mwifiex_cmd_802_11_snmp_mib(struct mwifiex_private *priv, "cmd: SNMP_CMD: cmd_oid = 0x%x\n", cmd_oid); cmd->command = cpu_to_le16(HostCmd_CMD_802_11_SNMP_MIB); cmd->size = cpu_to_le16(sizeof(struct host_cmd_ds_802_11_snmp_mib) - - 1 + S_DS_GEN); + + S_DS_GEN); snmp_mib->oid = cpu_to_le16((u16)cmd_oid); if (cmd_action == HostCmd_ACT_GEN_GET) { -- 2.53.0