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 78C2933F368 for ; Sat, 22 Aug 2026 15:34:03 +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=1787412844; cv=none; b=dYOAvoAGBAIhTKXMNNtSEuH40qZdSlYHuzYDVzYuqTJoReJFQMBmB2B4SlCd1o7zpUVCAvqzR7uHfPwNojG199pR+jZeq9fu3GerYCknkDSfEsZDpGca1mxhfAP3kptpa2YXGBEj95OaLr4e8sEvgnYvhtnqAHY/sGSffMwCVco= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787412844; c=relaxed/simple; bh=b/1kvkdDXFXbz+7UN3sHnH65/lZA7yQhFwov1uSR+ls=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=mbZw6uULgOGsdk1OsStpH8JNXhnALkZJ7pQ07FRtyA3yCsuXjbmuzZtO/+AXjT6t9Mo3Ps5h26ZnQtQKC1IRSC2G4pHwgZ5xTXs1OdB51nzj+xsAaPZr0YVfh7uQOd6+30PAIhh/jIZA0J2em58wUg/awPDjFEzmSk/yfUV3MBo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=VG8qX0vX; 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="VG8qX0vX" Received: by smtp.kernel.org (Postfix) with ESMTPSA id BA8FF1F000E9; Sat, 22 Aug 2026 15:34:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1787412843; bh=nmFa4s3XR6mc4xL67d0prUvLp4rMs4e9hUzi6LhOUAo=; h=From:To:Cc:Subject:Date:Reply-To; b=VG8qX0vXuOFe7Zirt9Ng7Fr6Sh7QvFPRBhCArC8V4JTXJY4taszlpGWTyA42DRIml ldM1rbtSIcl4ao9+ZmFs3ar/oC09f71COz/goZva7kxC2F2mJqVxFALsw4vK9GExwz e+4r1VHSABnDQ6iccNA0+1ztC0+koObAa+OY6G70= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2026-74603: ptp: ocp: Fix board ID over-read Date: Sat, 22 Aug 2026 17:31:27 +0200 Message-ID: <2026082215-CVE-2026-74603-955f@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=3062; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=vwlMRArF4krIbsM9tYMWvwhLUwRA9rwWzKLbLXpzjgA=; b=owGbwMvMwCRo6H6F97bub03G02pJDFmdBw4ny4kf1bm1p/Lwmwx+ecVtC99FXFuffUe9/NKWy LoPrK9zO2JZGASZGGTFFFm+bOM5ur/ikKKXoe1pmDmsTCBDGLg4BWAi/2QZ5rvfmb+9Y8qXAk3V FYcvmD7+2OY3uZNhwbTQqSrOh1+fLwtlkD5reer0NY+WZQA= 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: ptp: ocp: Fix board ID over-read The EEPROM board ID is a fixed 13-byte field and is not guaranteed to contain a NUL terminator. Passing it directly to devlink_info_version_fixed_put() treats it as a C string and may read beyond the field. Format at most OCP_BOARD_ID_LEN bytes into the existing local buffer before reporting the ID. Use a precision limit because the snprintf() output size alone does not bound the source string scan. The Linux kernel CVE team has assigned CVE-2026-74603 to this issue. Affected and fixed versions =========================== Issue introduced in 5.18 with commit 0cfcdd1ebcfe1a9b262f6ad8419580720dc843c4 and fixed in 6.1.183 with commit 72ef3ce80078199bfad32f98d055f44ba7cd0c3d Issue introduced in 5.18 with commit 0cfcdd1ebcfe1a9b262f6ad8419580720dc843c4 and fixed in 6.6.152 with commit 3d965811be78473654e6e8cc8e4fb7b6b87aa6c1 Issue introduced in 5.18 with commit 0cfcdd1ebcfe1a9b262f6ad8419580720dc843c4 and fixed in 6.12.104 with commit f92558bbe78d6284fedd053900f82a70f0aa8707 Issue introduced in 5.18 with commit 0cfcdd1ebcfe1a9b262f6ad8419580720dc843c4 and fixed in 6.18.45 with commit 5fd91dd4a143479b0575fb1f202ec1c501e71fd5 Issue introduced in 5.18 with commit 0cfcdd1ebcfe1a9b262f6ad8419580720dc843c4 and fixed in 7.1.9 with commit f8d7e5751267637190eff887c971d5b468106213 Issue introduced in 5.18 with commit 0cfcdd1ebcfe1a9b262f6ad8419580720dc843c4 and fixed in 7.2 with commit 6b69f2ef10cdb018c0b127a7cab88e590bbddba4 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-2026-74603 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/ptp/ptp_ocp.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/72ef3ce80078199bfad32f98d055f44ba7cd0c3d https://git.kernel.org/stable/c/3d965811be78473654e6e8cc8e4fb7b6b87aa6c1 https://git.kernel.org/stable/c/f92558bbe78d6284fedd053900f82a70f0aa8707 https://git.kernel.org/stable/c/5fd91dd4a143479b0575fb1f202ec1c501e71fd5 https://git.kernel.org/stable/c/f8d7e5751267637190eff887c971d5b468106213 https://git.kernel.org/stable/c/6b69f2ef10cdb018c0b127a7cab88e590bbddba4