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 DA56142AF87; Mon, 17 Aug 2026 14:37:34 +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=1786977456; cv=none; b=X5jWREdmBjn1lm09/3tzWfxS6UrcQuJrsTTJUT+IhBQCse+CA/99tr6w9hLc/Sw24Xj4WJsdkljh2/bvSOjQSvDzAvZoKn1pivd7O4Y5xn+ePjyzhxsW5xp0hUgoAFXtCbx7Y0bMb+DrUxjDDvD64jw6riLnj66UMcnzlv8BgGI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786977456; c=relaxed/simple; bh=yN0BLMwhz9/Phr2vjunSnpW0D/bkB8E3QfteTMJstxM=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=dcwcJrc/ez1KKG70FQMpItQgwV5/QFlpwLl68LbjXb15rjCPmkR79FAEyq0WD9opDhNi3va+YmOjKsd/WZXLMZZkx+annZVIkkzzi+brB4l7rjoMEYIAWAFOFzcgppkxTNENymv9/sQCQdXK7sA5oU+H4CqOanJi1jQSR4Jmx4A= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=N420a/OB; 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="N420a/OB" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2DC9A1F00ACA; Mon, 17 Aug 2026 14:37:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1786977454; bh=C2LDrsO9qf56tyMMbbj59nry/G30KMxETpvsgSIfhAM=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=N420a/OBRJxnan+032cGG/bnjaTXPmZLHK697TUSQ0p0A0Ryy2GGXE28u7ahd6Ghi qjnbHCjt2T7/BoRMupz2OnaYwHsdoXZP/p+qq6GTDDpwIFXGudvlzsvGGxK15JjfjX XsIbdN2baARFQYtIcFt65BjSJ38JQaAoBykVb5KE= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Christian Borntraeger , Alexandra Winter , Aswin Karuvally , Jakub Kicinski Subject: [PATCH 5.15 335/456] s390/qeth: Check CAP_NET_ADMIN for private ioctls Date: Mon, 17 Aug 2026 15:32:05 +0200 Message-ID: <20260817132552.721432712@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260817132539.792407575@linuxfoundation.org> References: <20260817132539.792407575@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 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Aswin Karuvally commit d211028bac1bd0fff0026bfa2a8328e5b78cd0e6 upstream. Gate the SIOCDEVPRIVATE ioctl commands SIOC_QETH_ADP_SET_SNMP_CONTROL, SIOC_QETH_GET_CARD_TYPE and SIOC_QETH_QUERY_OAT with CAP_NET_ADMIN capable check to ensure unprivileged users cannot invoke them. Fixes: 18787eeebd71 ("qeth: use ndo_siocdevprivate") Cc: stable@vger.kernel.org Suggested-by: Christian Borntraeger Reviewed-by: Christian Borntraeger Reviewed-by: Alexandra Winter Signed-off-by: Aswin Karuvally Link: https://patch.msgid.link/20260723140050.762991-1-aswin@linux.ibm.com Signed-off-by: Jakub Kicinski Signed-off-by: Greg Kroah-Hartman --- drivers/s390/net/qeth_core_main.c | 3 +++ 1 file changed, 3 insertions(+) --- a/drivers/s390/net/qeth_core_main.c +++ b/drivers/s390/net/qeth_core_main.c @@ -6609,6 +6609,9 @@ int qeth_siocdevprivate(struct net_devic struct qeth_card *card = dev->ml_priv; int rc = 0; + if (!capable(CAP_NET_ADMIN)) + return -EPERM; + switch (cmd) { case SIOC_QETH_ADP_SET_SNMP_CONTROL: rc = qeth_snmp_command(card, data);