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 E422542AF98 for ; Thu, 3 Sep 2026 08:27:25 +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=1788424047; cv=none; b=sWNOOFZ0fmX7WXJt4nX5+90Nbyx6ZDJy1raPxmAR0klb0Hk+hpKsXn5zxIXFvsbqxIsB81HDWb74a8EpiXX6DQo6pYM/oX39L85ABqB7A8KSCB+baQL0u5D093cd+TG8YpaiWi71BrTLWvYt4zDyWu3bnFXBNDb6t5bzigS3kWQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788424047; c=relaxed/simple; bh=P2fqiXZsxAObHkIBTh55cF3vtoRE5qrYq6zrneO9j5c=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=rE1HMztk+szkP7mdtFU24tY+jle0rW0saYJt09zlhvFsnQlzlAqWYXjHr/f3PURo4PskazXrEXtcVcasZVOm1b4wSGbBqNZg//IHBwE/6IZjQLnM/j2rqwkW4CbbN0djR8TWom7GaEi9v9wJ3EeXlxGxvzwVRA6PRmEmFtApb1E= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=jU4l+/7X; 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="jU4l+/7X" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4C82B1F000E9; Thu, 3 Sep 2026 08:27:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1788424045; bh=Z4crdJrBIPyptPXDu9dnoiWgu9NIIkzijWCAyr0QC4k=; h=From:To:Cc:Subject:Date:Reply-To; b=jU4l+/7XaWzSd0QkW1UrcsuVwR0A61EMMwpPganQAJd5qY583rAUq260HHfFRJjxU /E0m/kz1GCqVEsrksnNUJvPHiVcQAAjZUYljQT3oJYs+fSNcvgZQeC1MBtGwR91Wa7 EvH6YRDqidfFuuobf9MwMTvOhdlyOeWJt0enOIno= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2026-80745: regulator: fp9931: Fix VPOS/VNEG voltage selector table Date: Thu, 3 Sep 2026 10:26:42 +0200 Message-ID: <2026090337-CVE-2026-80745-d5c6@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=2596; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=4s6+fNGlnQLuaQlv/teBWuYi0mvxGGn7aSdECXXw9Ws=; b=owGbwMvMwCRo6H6F97bub03G02pJDFkz9e0MjZPjT7s6ioTe0qrnsPANXXDm+wvXhPOJn19pV IkFbbXsiGVhEGRikBVTZPmyjefo/opDil6Gtqdh5rAygQxh4OIUgIn05DHM90k7IOnIsi55QnBC Jp9jpu+6zbmvGRb0+l87pv7+I9O+cxXHJiR2FgvWtO4DAA== 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: regulator: fp9931: Fix VPOS/VNEG voltage selector table The VPOSNEG_table[] mapping does not match the FP9931 datasheet. The datasheet defines the VPOS/VNEG voltage mapping as: 00h-04h -> 7.04V (-7.04V) 05h -> 7.26V (-7.26V) 06h -> 7.49V (-7.49V) ... 28h-3Fh -> 15.06V (-15.06V) However, VPOSNEG_table[] has two issues: 1. Selector 0x00~0x04 should all map to 7.04V (5 entries), but the table has 6 entries of 7.04V, causing all subsequent entries to be shifted by one position. 2. Selectors 0x29~0x3F should all clamp to 15.06V (23 entries), but the table has only 41 entries. Any selector value above 0x28 would result in an out-of-bounds table access. Fix both issues by removing the duplicate 7.04V entry and appending the missing 23 clamped 15.06V entries, bringing the table to the correct size of 64 entries (0x00~0x3F). The Linux kernel CVE team has assigned CVE-2026-80745 to this issue. Affected and fixed versions =========================== Issue introduced in 6.19 with commit 12d821bd13d42e6de3ecb1c13918b1f06a3ee213 and fixed in 7.1.10 with commit 92a9594053831bf4c5886519688e155912befaee Issue introduced in 6.19 with commit 12d821bd13d42e6de3ecb1c13918b1f06a3ee213 and fixed in 7.2 with commit 66694b5f90f3876fccb87bbd02b453cdc33b3ae4 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-2026-80745 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/regulator/fp9931.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/92a9594053831bf4c5886519688e155912befaee https://git.kernel.org/stable/c/66694b5f90f3876fccb87bbd02b453cdc33b3ae4