From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 572891624C0 for ; Thu, 27 Feb 2025 02:13:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740622401; cv=none; b=jCFN/EGBTBXPaK1spoJBW1elNXi7DdUZHlPM5n04vaI7ABsu8NT26+HxLmYtXStzyDUauiX1dPRat6pcWLoiyWS4XI9o2RBu12n6KBkYHwMV7YYk7farlVGpy9HEwWI19v4mHUIKRedkaCFMxceGbf1EvB1NOtLNa1+1HiMPxhc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740622401; c=relaxed/simple; bh=msuAlSfiHs+hjyXY+Vj6ypiJh/CZjXp4ho6BBT6YDPA=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=eZnUVjYdIKk1V1aW+0dqQzozjpPz70v1Zv/22L4W740F4ymtar/Y/SvdU702120tf2iKX6EpDhgGL88RL4pB8jNLhPXUyz5WNbQwEvRt08ZKP04pLbDopKq/4laXa24ofoIhAiE1c/b/KiRYjPSueccGy6cjZcAUGIO0azicn9U= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=fZ1U7VPj; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="fZ1U7VPj" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1EAF5C4CED6; Thu, 27 Feb 2025 02:13:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1740622401; bh=msuAlSfiHs+hjyXY+Vj6ypiJh/CZjXp4ho6BBT6YDPA=; h=From:To:Cc:Subject:Date:Reply-to:From; b=fZ1U7VPjpgNG8m6fy8u027TVztpNb23TDlijAK5Mzdf/Z+ZuRapqItSSGqOSYAJRK 32+Oy459Yc0SGtlKrda/GRdzirBha4mWRkOvXMYNI4TKgFnzCikPNjGLmagbsmihSU XCxBOLke41boq8H+Bb9ZqmrRqLB1q7HCOt5Br04E= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2025-21743: usbnet: ipheth: fix possible overflow in DPE length check Date: Wed, 26 Feb 2025 18:11:25 -0800 Message-ID: <2025022600-CVE-2025-21743-c67f@gregkh> X-Mailer: git-send-email 2.48.1 Precedence: bulk X-Mailing-List: linux-cve-announce@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Reply-to: , X-Developer-Signature: v=1; a=openpgp-sha256; l=2511; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=msuAlSfiHs+hjyXY+Vj6ypiJh/CZjXp4ho6BBT6YDPA=; b=owGbwMvMwCRo6H6F97bub03G02pJDOn7T275dtqRv/6H1YFZr5u+nosVFvx4X3fnz+aGY5LBT Z//r0/N7YhlYRBkYpAVU2T5so3n6P6KQ4pehranYeawMoEMYeDiFICJrK9mWHDF3TTgWahofZn1 7Gz173X9Lm/i+BkWNElPTFH9z2O6UOf5xJVT30ycFcxqAgA= X-Developer-Key: i=gregkh@linuxfoundation.org; a=openpgp; fpr=F4B60CC5BF78C2214A313DCB3147D40DDB2DFB29 Content-Transfer-Encoding: 8bit Description =========== In the Linux kernel, the following vulnerability has been resolved: usbnet: ipheth: fix possible overflow in DPE length check Originally, it was possible for the DPE length check to overflow if wDatagramIndex + wDatagramLength > U16_MAX. This could lead to an OoB read. Move the wDatagramIndex term to the other side of the inequality. An existing condition ensures that wDatagramIndex < urb->actual_length. The Linux kernel CVE team has assigned CVE-2025-21743 to this issue. Affected and fixed versions =========================== Issue introduced in 6.5 with commit a2d274c62e44b1995c170595db3865c6fe701226 and fixed in 6.6.78 with commit 18bf6f5cce3172cb303c3f0551aa9443d5ed74f8 Issue introduced in 6.5 with commit a2d274c62e44b1995c170595db3865c6fe701226 and fixed in 6.12.14 with commit d677e7dd59ad6837496f5a02d8e5d39824278dfd Issue introduced in 6.5 with commit a2d274c62e44b1995c170595db3865c6fe701226 and fixed in 6.13.3 with commit d824a964185910e317287f034c0a439c08b4fe49 Issue introduced in 6.5 with commit a2d274c62e44b1995c170595db3865c6fe701226 and fixed in 6.14-rc1 with commit c219427ed296f94bb4b91d08626776dc7719ee27 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-2025-21743 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/ipheth.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/18bf6f5cce3172cb303c3f0551aa9443d5ed74f8 https://git.kernel.org/stable/c/d677e7dd59ad6837496f5a02d8e5d39824278dfd https://git.kernel.org/stable/c/d824a964185910e317287f034c0a439c08b4fe49 https://git.kernel.org/stable/c/c219427ed296f94bb4b91d08626776dc7719ee27