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 373924CCDC8 for ; Thu, 3 Sep 2026 08:27:05 +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=1788424027; cv=none; b=MPWGN1AV0oOCZNfQhjjR7fYF9GP0+E4D2Urx/2M/MMqHJtlj6FvyxT8baxPLGSAK9m8yg8J1c5iFIE+yEBQx5X0wvqMR3d9qSsAa+PULZJE8jSh8R0EPa/oh31LuQ2e2yJiUDqkmXaLc4y5t5oK/T7Sssj0hcU+BfAYEBQUP4XM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788424027; c=relaxed/simple; bh=ibtqR3GTPgy31tv4YeJGT2wjP3sTY4gyCMAnT/S+6SM=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=cLi1hD2G+vxqeMB/aUHvhDiH7lJrDtwNq714dudRnjN1XEzJIUB1LG4bqAjCVmpa8BOfxtt9Fo9ot5X41cyFqH84QtjkMvXDvCpK4C7yCjJ2F7MYX+7gbVXsluTs5lVebSbVLCJk2t6GENhtyLuaKrn9uHxVk28b7CyL+Nyh1qw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=oJggjbbj; 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="oJggjbbj" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 315821F000E9; Thu, 3 Sep 2026 08:27:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1788424025; bh=y/EMu8RJos0EOVQ0rZiKykD2JbPjKJHH/+Zo7HHcdoU=; h=From:To:Cc:Subject:Date:Reply-To; b=oJggjbbjuxIzrE3qtwIb+MUCf6zq7yA/z4nibM6inEXYewzu1ZRlMPFee2ndrMO/B UrzZUAxyJTGsH6JBrF/u7IFloBzK8SbJtx8ghT6ccp39g+cA12NvfDJrjaInBgksOF QdcL/yP9KLItRAscF0tAVNjXroFsT0cHi05usjCY= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2026-80754: Input: synaptics-rmi4 - fix F55 transmitter electrode count typo Date: Thu, 3 Sep 2026 10:26:51 +0200 Message-ID: <2026090340-CVE-2026-80754-d0c3@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=3679; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=kjXI/WfewAAcneHCQbzsDvzwVrtPwawt/K3kaUGP8lY=; b=owGbwMvMwCRo6H6F97bub03G02pJDFkz9R0kHE4rPWBvuNt8VaF86c7d0dOqI3RYPZMsTeauO N5c8rmkI5aFQZCJQVZMkeXLNp6j+ysOKXoZ2p6GmcPKBDKEgYtTACayJ4lhrswlY/8VDBf4ngXn PY7WUVg+f0ufAsOCBVGHVU6f3nnhdMKpe26B6YpZLtxrAA== 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: Input: synaptics-rmi4 - fix F55 transmitter electrode count typo During F55 sensor detection, the transmitter (TX) electrode count was incorrectly assigned the value of the receiver (RX) electrode count due to copy-paste typos. This incorrect value was then propagated to the driver data and used by F54 to determine the diagnostics report size. On devices with more RX than TX electrodes, this inflated the perceived TX count, leading to incorrect report size calculations and potential out-of-bounds buffer accesses. Fix the typos by correctly assigning the TX electrode counts. The Linux kernel CVE team has assigned CVE-2026-80754 to this issue. Affected and fixed versions =========================== Issue introduced in 4.10 with commit 6adba43fd222ea362c36296d1a6897c2e28fdc8e and fixed in 5.10.266 with commit 6484e00d6778fdf2209cd75940bc3902b276457f Issue introduced in 4.10 with commit 6adba43fd222ea362c36296d1a6897c2e28fdc8e and fixed in 5.15.217 with commit db4e20265ebda729610ca5cf45ca9437462c3f36 Issue introduced in 4.10 with commit 6adba43fd222ea362c36296d1a6897c2e28fdc8e and fixed in 6.1.184 with commit a6d9646e77da7cab2dff7043a8e9f75e23b836bc Issue introduced in 4.10 with commit 6adba43fd222ea362c36296d1a6897c2e28fdc8e and fixed in 6.6.153 with commit 0739c65e799d4a93fe573ed23255a71fcfcc5438 Issue introduced in 4.10 with commit 6adba43fd222ea362c36296d1a6897c2e28fdc8e and fixed in 6.12.105 with commit 9759502f5cd71805923457f183ae5b9533e20c7b Issue introduced in 4.10 with commit 6adba43fd222ea362c36296d1a6897c2e28fdc8e and fixed in 6.18.46 with commit 9b184c8337c6e12df129399007735a7fbcbbcb7b Issue introduced in 4.10 with commit 6adba43fd222ea362c36296d1a6897c2e28fdc8e and fixed in 7.1.10 with commit a81cafe3c3c2f8494063385a7b0ea7ff407bf19f Issue introduced in 4.10 with commit 6adba43fd222ea362c36296d1a6897c2e28fdc8e and fixed in 7.2 with commit 6058f0fea10f3caf63a435677358d1b8e9325114 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-2026-80754 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/input/rmi4/rmi_f55.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/6484e00d6778fdf2209cd75940bc3902b276457f https://git.kernel.org/stable/c/db4e20265ebda729610ca5cf45ca9437462c3f36 https://git.kernel.org/stable/c/a6d9646e77da7cab2dff7043a8e9f75e23b836bc https://git.kernel.org/stable/c/0739c65e799d4a93fe573ed23255a71fcfcc5438 https://git.kernel.org/stable/c/9759502f5cd71805923457f183ae5b9533e20c7b https://git.kernel.org/stable/c/9b184c8337c6e12df129399007735a7fbcbbcb7b https://git.kernel.org/stable/c/a81cafe3c3c2f8494063385a7b0ea7ff407bf19f https://git.kernel.org/stable/c/6058f0fea10f3caf63a435677358d1b8e9325114