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 CA3042D7DC8; Mon, 17 Aug 2026 15:02:03 +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=1786978924; cv=none; b=niKZ2VK6FMIWxDTGOFgVOOlbyV7Wky/A2soyHY1Xjlg1HxXlIM0hj7huXIAqmwdjCEC+BAHhgvx1wXHdydsYHodoTloRR4MLKxaLEeLA0KcodggJlsjHj+VYthhJknel5Aum3NMI8am8Q8rMQkAW61kos+nftJV1L3pKqrNrQjM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786978924; c=relaxed/simple; bh=NhShG01wE93Iu0BWcsTPOlfWrt47Vc/ik+UKEcKh1k8=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=qYU2MOHlbt57CB3GIa8ncsdysgW0eXCxv9/HEPoyX4MBe3A54cjoH3Y9I5tWoKmNHy6scxEHxi1xTDVTWnlZCiwJXQuHMa/XwGrRfRa19/cYXbRatzpsyOE3qwgZ0RTNX3DCp96E3/QISp9ywTBISpYKfGNkRkw2r5XDUEDZ1oA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=1i5tDFRw; 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="1i5tDFRw" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2EAE11F000E9; Mon, 17 Aug 2026 15:02:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1786978923; bh=MEySm1tg47OfIuxcfq9W3ZRA/+AQU6LPG5UFjC/9Gdw=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=1i5tDFRw7ctcNitzPO9MLufmrBRNty0HDqZEGQUDNn5jAhVDiaLQSO66/RwWYiFmy Q5ckeiYJ7WBNasBChDvyn4UnZm4kLP7hIN4XaWowMgI21iEwJspJvmU8MGFNO1Shyg wbRPb4+IFnlWGlED9fAEV+W0ZzJ1rrD0Bk2S0+HA= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Zhao Li , Johannes Berg , Sasha Levin Subject: [PATCH 6.1 047/609] wifi: cfg80211: validate PMSR measurement type data Date: Mon, 17 Aug 2026 15:25:43 +0200 Message-ID: <20260817132544.927047425@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260817132543.039278408@linuxfoundation.org> References: <20260817132543.039278408@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 6.1-stable review patch. If anyone has any objections, please let me know. ------------------ From: Zhao Li [ Upstream commit 41aa973eb05922848dded26875c55ef982ac1c49 ] PMSR request parsing accepts missing or duplicated measurement type entries in NL80211_PMSR_REQ_ATTR_DATA. Track whether one measurement type was already provided, reject a second one immediately, and return an error if the request data block contains no measurement type at all. Fixes: 9bb7e0f24e7e7 ("cfg80211: add peer measurement with FTM initiator API") Assisted-by: Codex:gpt-5.5 Assisted-by: Claude:claude-opus-4.8 Signed-off-by: Zhao Li Link: https://patch.msgid.link/20260612133656.92900-2-enderaoelyther@gmail.com Signed-off-by: Johannes Berg Signed-off-by: Sasha Levin --- net/wireless/pmsr.c | 19 +++++++++++++++++-- 1 file changed, 17 insertions(+), 2 deletions(-) diff --git a/net/wireless/pmsr.c b/net/wireless/pmsr.c index 656464f2de516c..647ca369caf994 100644 --- a/net/wireless/pmsr.c +++ b/net/wireless/pmsr.c @@ -188,6 +188,7 @@ static int pmsr_parse_peer(struct cfg80211_registered_device *rdev, { struct nlattr *tb[NL80211_PMSR_PEER_ATTR_MAX + 1]; struct nlattr *req[NL80211_PMSR_REQ_ATTR_MAX + 1]; + bool have_measurement_type = false; struct nlattr *treq; int err, rem; @@ -240,6 +241,14 @@ static int pmsr_parse_peer(struct cfg80211_registered_device *rdev, } nla_for_each_nested(treq, req[NL80211_PMSR_REQ_ATTR_DATA], rem) { + if (have_measurement_type) { + NL_SET_ERR_MSG_ATTR(info->extack, treq, + "multiple measurement types in request data"); + return -EINVAL; + } + + have_measurement_type = true; + switch (nla_type(treq)) { case NL80211_PMSR_TYPE_FTM: err = pmsr_parse_ftm(rdev, treq, out, info); @@ -249,10 +258,16 @@ static int pmsr_parse_peer(struct cfg80211_registered_device *rdev, "unsupported measurement type"); err = -EINVAL; } + if (err) + return err; } - if (err) - return err; + if (!have_measurement_type) { + NL_SET_ERR_MSG_ATTR(info->extack, + req[NL80211_PMSR_REQ_ATTR_DATA], + "missing measurement type in request data"); + return -EINVAL; + } return 0; } -- 2.53.0