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 82FD11A5BAE for ; Sun, 19 Jul 2026 15:04:05 +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=1784473446; cv=none; b=Q1iExiutHsa9g/VI9MVXoYwzsGzQaOyBLpNv2zYQPv97wHRpDooOAPG/Ia2wxgKocac+M/0ZvMEBfMBmOcnrIuVtb05DuQZyOJwZ+KruSX+lcAbCh2G7GSj1OhOxHLdRF0+Wxk3W5OpdA0MJspXmBbl6yVJaYjc8BT9yvfYJpOg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784473446; c=relaxed/simple; bh=UOFX3O+KzXgbwUcX3F2JJh+uOrVlNTm4sKOJt0/Nxtk=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=uv1lxJxRSvwex/ec8AWvoc/mJmAL/GoPBehkL1D8S4jtVxAHiJA+GuT1mNy1oBxEuLiFj+bxuy+VLnRhpI4DUJ6eVQ7fLLq1ziNpFMAJo0D+SokhUbdSgVVtQEjGdGgxo7mkQ8k8ddIUYUE/nCrVR1+O5Zd1kRQmEBYILCnW5L8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=DuByb2uf; 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="DuByb2uf" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A18251F000E9; Sun, 19 Jul 2026 15:04:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1784473445; bh=eC4sskBwQZmO6nQ1C9pXQy+u/KxEUfy6JMhixcYKd5U=; h=From:To:Cc:Subject:Date:Reply-To; b=DuByb2ufzlgYZIVONxNPIZcHYOg4RahwlKuo2kC5/KO5gzoASel1pm8IA6rDe92Oz 8+h6b3/ey1kATlYu8TA5ql+S3Zx+aWnnS9kXXinh4HwhwHJnRkBNluo9yNY2HmS7xt 3pZ8mcYbqp89I+hp3cIBYfrdUimqNvamkiaQrouM= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2026-63997: ethtool: module: avoid leaking a netdev ref on module flash errors Date: Sun, 19 Jul 2026 16:57:37 +0200 Message-ID: <2026071905-CVE-2026-63997-c99c@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=2419; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=UY3vhcOFbcvuN0oj3cjsK14ZneZOsYuOg3rZy1kFrX4=; b=owGbwMvMwCRo6H6F97bub03G02pJDFkxT9t4H21/t9lF8ftc8Y3R/ZbhxikWgWtOz628ULRzp svFW1wbOmJZGASZGGTFFFm+bOM5ur/ikKKXoe1pmDmsTCBDGLg4BWAi+dsY5qktmM3At9T4it2m zhcvtSwv7crSnM0wV7TEelntX93t9jKzCtet/Pfrscz2PQA= 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: ethtool: module: avoid leaking a netdev ref on module flash errors module_flash_fw_schedule() is missing undo for setting the "in_progress" flag and taking the netdev reference. Delay taking these, the device can't disappear while we are holding rtnl_lock. The Linux kernel CVE team has assigned CVE-2026-63997 to this issue. Affected and fixed versions =========================== Issue introduced in 6.11 with commit 32b4c8b53ee7799e34a2b1634d32d3ce1e36c44e and fixed in 6.12.93 with commit f7b4513e77f9571dc1041a798b93b5c4a4bfc191 Issue introduced in 6.11 with commit 32b4c8b53ee7799e34a2b1634d32d3ce1e36c44e and fixed in 6.18.35 with commit 61848c83b9132ab839809fe415ba7802a0aca4f6 Issue introduced in 6.11 with commit 32b4c8b53ee7799e34a2b1634d32d3ce1e36c44e and fixed in 7.0.12 with commit 956b134d917fd7e014dc7e39a9b7610c04fcc9ba Issue introduced in 6.11 with commit 32b4c8b53ee7799e34a2b1634d32d3ce1e36c44e and fixed in 7.1 with commit fb7f511d62692661846c47f199e0afe25c2982db 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-2026-63997 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: net/ethtool/module.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/f7b4513e77f9571dc1041a798b93b5c4a4bfc191 https://git.kernel.org/stable/c/61848c83b9132ab839809fe415ba7802a0aca4f6 https://git.kernel.org/stable/c/956b134d917fd7e014dc7e39a9b7610c04fcc9ba https://git.kernel.org/stable/c/fb7f511d62692661846c47f199e0afe25c2982db