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 99D2F382F0C for ; Sun, 18 Oct 2026 15:52:57 +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=1792338778; cv=none; b=dMrt2x8qjRSlVpx1JjMG+BihXlceqH0my3D6U/OybWaNtqAut3ksdFgMTi9EfLvCugWr300nOcoj5JPWQen/ZosHc79mhxWteV2QPlnkmkDfQJ8vw5DA4ycS6ebMYA303ryfiKM6koCBrInl9etE0gxWxXI49IPskIwjlF9JFfY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1792338778; c=relaxed/simple; bh=1BZXKNyNhfIy0zpljI868xAHieZ75cFprdMczKNYJwI=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=dmMqK6bKNTb7tm3ITbRrmkj0LVb3WE9cO1+DkWlsu33XhFe+mZi1Xgfx6o3FBL9A0PhxcCUClQEW/vaG8w1NwKWOGzMLzjDOeXULy5PiqZf40/hJE6XYPWWua2MuoXOac5DnIhpCwXnDvbVF9ZW7Z7f2VSsDS00J1yPVUXX5i/4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=NAq5dWhc; 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="NAq5dWhc" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6E6981F000C4; Sun, 18 Oct 2026 15:52:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1792338777; bh=CalP8JIDPSoVPemfgVZd2r9ph/6vu7r66BYv8V/UrSU=; h=From:To:Cc:Subject:Date:Reply-To; b=NAq5dWhcKE0SzXW2uJEWh6vZfuWnFOI3Z/FtyN9warz3nrHt4eTQ6WIefxFA+NI5i XFWbWdcNMzbng8k4r+KGMVSFDp2VzNW5P0BREaaifaB14IWXYPKzZzbIf7erZiTker GFjEDwKdNt7uXaDyLs/09vmhP4mccHptVOV3/BMM= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2026-98662: iio: light: gp2ap020a00f: drain irq_work after free_irq Date: Sun, 18 Oct 2026 17:43:57 +0200 Message-ID: <2026101855-CVE-2026-98662-23a7@gregkh> X-Mailer: git-send-email 2.56.0 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=2847; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=ilTzWK/Qfs3zmJEE9Bz//UeIphlogFRnQ7ZYHXPxN2M=; b=owGbwMvMwCRo6H6F97bub03G02pJDFlXXtrwZlZMqfrTUy+dtzth7Zev0e6Hs273qly8tOrZR m2jnqfMHbEsDIJMDLJiiixftvEc3V9xSNHL0PY0zBxWJpAhDFycAjCRjUUM84tVv0Y1Rbw2nHO2 IPOC24NVURLOXxnmF2Xb9LK6ns9OsDubxefw43fW2+QfAA== 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: iio: light: gp2ap020a00f: drain irq_work after free_irq The threaded IRQ handler queues data->work through irq_work_queue() so the trigger is polled from a per-CPU context. free_irq() does not flush an irq_work the handler already queued, so after gp2ap020a00f_remove() returns that work may still run and call iio_trigger_poll() on data->trig, which the devm cleanup has already freed, causing a use-after-free. Add irq_work_sync(&data->work) after free_irq() in remove() and in the probe error path, mirroring commit 78601726d4a5 ("iio: trigger: sysfs: fix use-after-free on remove"). Found by an in-house static analysis tool, confirmed by manual review. The Linux kernel CVE team has assigned CVE-2026-98662 to this issue. Affected and fixed versions =========================== Issue introduced in 3.13 with commit bf29fbeaa13d3350ca71df70c705d8b883c45692 and fixed in 6.12.113 with commit a36814b9fe00970116d30c3143d81e7425c4d334 Issue introduced in 3.13 with commit bf29fbeaa13d3350ca71df70c705d8b883c45692 and fixed in 6.18.56 with commit cc71400bc965c0d3894a38ead3d71243400c2d5e Issue introduced in 3.13 with commit bf29fbeaa13d3350ca71df70c705d8b883c45692 and fixed in 7.2.10 with commit a1769877ff52a4f1bfb9ca535d1b5113808bd602 Issue introduced in 3.13 with commit bf29fbeaa13d3350ca71df70c705d8b883c45692 and fixed in 7.3-rc6 with commit 63213927b141085b6c8719b8037dab3074b7e0fe 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-2026-98662 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/iio/light/gp2ap020a00f.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/a36814b9fe00970116d30c3143d81e7425c4d334 https://git.kernel.org/stable/c/cc71400bc965c0d3894a38ead3d71243400c2d5e https://git.kernel.org/stable/c/a1769877ff52a4f1bfb9ca535d1b5113808bd602 https://git.kernel.org/stable/c/63213927b141085b6c8719b8037dab3074b7e0fe