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 0A5DB3A8755 for ; Fri, 4 Sep 2026 15:18:54 +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=1788535135; cv=none; b=Zxr0nQRY5+jUMPP2R/LBCC1PfMqiRXKPeyEIGkfUPlkMSxBNOpy4s7LqUN7R+AatRS60MNLozT0naiuV9/p4zmRvAF8h+2l7jhp23lKDMAkQ5NSsuJ183cSPualtoWoR6goxbJpq96eAPLBXEHq/s2ACgWXt72B3NgvzSRUqT6k= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788535135; c=relaxed/simple; bh=/inc7jkw1CGVk4mpFUkduyEnNXtvqFMWyA5dd4zpABs=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=lYFJaIb2BstnWS5xnKc3TggeJfREdNX9ystSpITlXAeXlkcCv+vEV9qQE5XQ4z78Ec39vHgl+tK15qCTBVQD927NHqAS8+r4+0sjkxIFKUumo9F5D7IuA4IJshVMhpwbIaznnFGzXbOwtZiqTomLOfntdThLVygeO3GVqYA4a+o= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=qXop24DV; 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="qXop24DV" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 286931F00A3D; Fri, 4 Sep 2026 15:18:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1788535133; bh=fIqbwYcWX2sULA5r1yZQiwACtbH8F99Sswsj7MJoL8g=; h=From:To:Cc:Subject:Date:Reply-To; b=qXop24DVI8oKqyqTYTQuZFSP4OJu1Oj+SLdBC2GeJkcbMsZMJa1u5AKu3mnQQBe+e S+B87qkHlE0pXpDeyxrUAQzW+4To88BiIfTm61ebqjxM0rJ9qyyxmXiNUCMDU8KbvO +smCZ/9x6gR4chK+SIVBIwXSyCQIiGY4LRE7dpfw= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2026-80814: rndis_host: add overflow check in rndis_rx_fixup() Date: Fri, 4 Sep 2026 17:11:53 +0200 Message-ID: <2026090412-CVE-2026-80814-4889@gregkh> X-Mailer: git-send-email 2.55.0 Reply-To: , Precedence: bulk X-Mailing-List: linux-cve-announce@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=2765; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=48ZG15iVpGmm6lF15hlN8K56sokDaCACRL2NsZU6AIw=; b=owGbwMvMwCRo6H6F97bub03G02pJDFmz7k+YK32vI+KR++SF/S37fq4wZXfNOiqvyqvK2a3wL cpx3XqnjlgWBkEmBlkxRZYv23iO7q84pOhlaHsaZg4rE8gQBi5OAZjINnGGeXb79j6RnFgaPPGz 1R0XzwPpsuKfLBgW7FdiWbrs+Nfukr6i+Wwvq99dsJbIAQA= X-Developer-Key: i=gregkh@linuxfoundation.org; a=openpgp; fpr=F4B60CC5BF78C2214A313DCB3147D40DDB2DFB29 Content-Transfer-Encoding: 8bit From: Greg Kroah-Hartman Description =========== In the Linux kernel, the following vulnerability has been resolved: rndis_host: add overflow check in rndis_rx_fixup() Add an overflow check to ensure that data_offset + data_len + 8 does not wrap, which would enable an OOB read of the USB data buffer. The Linux kernel CVE team has assigned CVE-2026-80814 to this issue. Affected and fixed versions =========================== Fixed in 5.10.267 with commit 2140db1232af04b92faa6c4a2a40df6371ea89ff Fixed in 5.15.218 with commit 8ca3bd404d076495ed0b274b65971c57b6fd5ac0 Fixed in 6.1.185 with commit f8e6fde5db87f855e99b200e392467274f0eb9d7 Fixed in 6.6.154 with commit 10a6b99079697c5027b25352e882bdf54fef702a Fixed in 6.12.106 with commit c5398ce6db7647b7004d73a3102ccc25fb4bb596 Fixed in 6.18.47 with commit e971d956353d382ee2185d71c47b538501a43f76 Fixed in 7.1.11 with commit be7dc3650f799a253df4edd4fe230fc9ea4be063 Fixed in 7.2.1 with commit 2ded89ca77fae1da6886fe94831acfe4d6aa80b1 Fixed in 7.3-rc1 with commit 965a251f23ff69cfb4486974d4532e9bb551c7fc Please see https://www.kernel.org for a full list of currently supported kernel versions by the kernel community. Unaffected versions might change over time as fixes are backported to older supported kernel versions. The official CVE entry at https://cve.org/CVERecord/?id=CVE-2026-80814 will be updated if fixes are backported, please check that for the most up to date information about this issue. Affected files ============== The file(s) affected by this issue are: drivers/net/usb/rndis_host.c Mitigation ========== The Linux kernel CVE team recommends that you update to the latest stable kernel version for this, and many other bugfixes. Individual changes are never tested alone, but rather are part of a larger kernel release. Cherry-picking individual commits is not recommended or supported by the Linux kernel community at all. If however, updating to the latest release is impossible, the individual changes to resolve this issue can be found at these commits: https://git.kernel.org/stable/c/2140db1232af04b92faa6c4a2a40df6371ea89ff https://git.kernel.org/stable/c/8ca3bd404d076495ed0b274b65971c57b6fd5ac0 https://git.kernel.org/stable/c/f8e6fde5db87f855e99b200e392467274f0eb9d7 https://git.kernel.org/stable/c/10a6b99079697c5027b25352e882bdf54fef702a https://git.kernel.org/stable/c/c5398ce6db7647b7004d73a3102ccc25fb4bb596 https://git.kernel.org/stable/c/e971d956353d382ee2185d71c47b538501a43f76 https://git.kernel.org/stable/c/be7dc3650f799a253df4edd4fe230fc9ea4be063 https://git.kernel.org/stable/c/2ded89ca77fae1da6886fe94831acfe4d6aa80b1 https://git.kernel.org/stable/c/965a251f23ff69cfb4486974d4532e9bb551c7fc