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 0150F3CAE93 for ; Mon, 10 Aug 2026 12:07:26 +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=1786363647; cv=none; b=Y7bFvgNkUfeJrxavbreSlc7vg6DdiwoxQ/z6GH1lmzWDllNtC7aCnLZFxdgiV54LEXzTmqh75Uk34q7RkKPivMJUAPfvdTrNHtu1AwBgUzoJrysd73e85lawKZvt7xTPZQP7+siCbii91cGAKMjNP4NZgxiyL99+75mk5H3kSSY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786363647; c=relaxed/simple; bh=FJPnbimfbtQWB0Na8ILG2RQ8Q9/HhJbCFrHQhMW8AsQ=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version:Content-Type; b=upwmjP3TMYhjtLxOrWihv9Pa+wFyNwFnESyVznX4ZkSI/V8kFTN3zA7Zkm014iiTxz2SJaUCYiH/fkj3aTPeyTyQnrjr61avJzhYyisnC+stP1sNWsCcW8NB/r8t9MrHWZ++R2P2EeqsCO+KhzKQm/m+kXed38UdPNsxCbMl6sM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=HWGXgFtS; 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="HWGXgFtS" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 795FA1F000E9; Mon, 10 Aug 2026 12:07:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1786363645; bh=UTiRUuUyme1m3rX51/0D5EnBMRUZuVIH+XftTF2rP7o=; h=From:To:Cc:Subject:Date:Reply-To; b=HWGXgFtSu/o2w68Y1HZL1tYeRDMDND+VnNF2qwMUstmjtYUfVDocRmL5yg7YScbzY ijp735wE3V76QLugUFtl54MqJt2VwEmUgdrt1IKXSneCOmtCqEdCSPbvSfIwZUdcdm Nl2pW9nDYslEL4UyLD4qc8a/X07fDJOy/64e/hFM= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2026-68247: drm/i915/bios: range check LFP Data Block panel_type2 Date: Mon, 10 Aug 2026 13:59:24 +0200 Message-ID: <2026081019-CVE-2026-68247-429d@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=2705; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=ehyHcD+icEkrVNNBcb9HRByN/vEMuJX/G7yzo7xQ/0E=; b=owGbwMvMwCRo6H6F97bub03G02pJDFmVexasVikXezQ1VL2lyepHkoQF57E8xlnSc9TU7GUPf Up5uz6nI5aFQZCJQVZMkeXLNp6j+ysOKXoZ2p6GmcPKBDKEgYtTACZiN49hvtuRg9ETxB5bPM93 Vfsye+/LVcd55zIsOGxVdl9pyu+JClf3FKo5LOYPM/2xDQA= X-Developer-Key: i=gregkh@linuxfoundation.org; a=openpgp; fpr=F4B60CC5BF78C2214A313DCB3147D40DDB2DFB29 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Greg Kroah-Hartman Description =========== In the Linux kernel, the following vulnerability has been resolved: drm/i915/bios: range check LFP Data Block panel_type2 While the panel_type from LFP Data Block is range checked, panel_type2 is not. Add a few helpers for range checking, and use them to not only check panel_type2, but also improve clarity and correctness in the panel type selection. Discovered using AI-assisted static analysis confirmed by Intel Product Security. v2: - Fix commit message typo (Michał) - Add is_panel_type_pnp() (Ville) (cherry picked from commit c9ebe5d2f25729d6cfbbb1235d640bf67f9275df) The Linux kernel CVE team has assigned CVE-2026-68247 to this issue. Affected and fixed versions =========================== Issue introduced in 6.0 with commit 6434cf630086eea2d091f122f5802582a05d9d1c and fixed in 6.12.101 with commit e7b5694645b03e80830dc141b59fc65aac693c70 Issue introduced in 6.0 with commit 6434cf630086eea2d091f122f5802582a05d9d1c and fixed in 6.18.42 with commit 8b2da44446f9dce2ae50fee78bac2734d4277143 Issue introduced in 6.0 with commit 6434cf630086eea2d091f122f5802582a05d9d1c and fixed in 7.1.6 with commit 8887b94d2fc93071bf6ff09c39d474510e6f582f Issue introduced in 6.0 with commit 6434cf630086eea2d091f122f5802582a05d9d1c and fixed in 7.2-rc2 with commit 2084503f2d087bf956198e7f6eb25b03a7049cb2 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-2026-68247 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/gpu/drm/i915/display/intel_bios.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/e7b5694645b03e80830dc141b59fc65aac693c70 https://git.kernel.org/stable/c/8b2da44446f9dce2ae50fee78bac2734d4277143 https://git.kernel.org/stable/c/8887b94d2fc93071bf6ff09c39d474510e6f582f https://git.kernel.org/stable/c/2084503f2d087bf956198e7f6eb25b03a7049cb2