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 E94FF376BCC for ; Sat, 15 Aug 2026 06:25:33 +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=1786775135; cv=none; b=BXEXJJa/xjAbF9lWWmYWs8ryHFh/n7Jx+dbuH+9aSwznoLZneC3uDDBmUucBtI40dZE2fJjKOcTx5iRoLaPGvBzpZtas5M8iT5SPWIJnpddVfJ4VHFOwl2Q5b2MCWwynGbLIZO51E3/EHxyZmKYFhVqnl/h48rlN9ldpwWpVo7E= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786775135; c=relaxed/simple; bh=c6VNct2m+ufHx4kuDSCPY1YSgeyHxokAfNhJsOyRkxg=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=CP/+p8VSl7gXWGHx0hi+A8HzcO25BSdPdn/OcbddfqadB17CmlnLA4ljChkZ5kf06yoS7Sal4Mk62dkPkStiTGjna2teXOBbxRbiWURu8UD76qNO5u91N3OksLNdCY/1ReTgbDARRwmBC0BA65EkRzt4PP0qwcYCeoSn95YD3O0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=OJ7er8Vr; 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="OJ7er8Vr" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4503C1F000E9; Sat, 15 Aug 2026 06:25:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1786775133; bh=1ARovwoXbU/6yM7QXmsWTa5aWrqkMqzrcfhfHHLZGAg=; h=From:To:Cc:Subject:Date:Reply-To; b=OJ7er8VrgAVw6lOoBuEWoDS/doE8YNOIR+wNcx6jd99lpA8D8VV3nNncisSRLj567 7hrasGyIcU3pCKoR9XuPnGrihEN2/ExvRDfFEXbEf9eqWuOyeyHkfCdtTGQugzxLvB 7AK8L+IhsLt2V8wL8Uvh+vfUpoatCkkS2Pz/uKKg= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2026-72384: irqchip/ts4800: Fix missing chained handler cleanup on remove Date: Sat, 15 Aug 2026 15:07:43 +0900 Message-ID: <2026081518-CVE-2026-72384-7059@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=3453; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=i7oe9K1n2h1mtjqO1jfemc4W9RV0e8iyRmJWYVahtfo=; b=owGbwMvMwCRo6H6F97bub03G02pJDFkNDK/+y0Tvqb7AodA6c/Xq2KYvv7q2f9H9oKSXfb/in lyF2rLvHbEsDIJMDLJiiixftvEc3V9xSNHL0PY0zBxWJpAhDFycAjCRZ6cYFmw/GN/4Qs224QBT ebdNxXWhadn/1zAsOH1KpD1w80vWmiefp0YHzXwoLLfNGgA= 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: irqchip/ts4800: Fix missing chained handler cleanup on remove The driver installs a chained handler for the parent interrupt during probe using irq_set_chained_handler_and_data(), but the remove function does not clear this handler. This leaves a dangling handler that may be called when the parent interrupt fires after the driver has been removed, potentially accessing freed memory and causing a kernel crash. Additionally, the parent_irq obtained via irq_of_parse_and_map() is not stored, making it inaccessible in the remove function. Moreover, interrupt mappings created during probe are not properly disposed. Fix this by: - Saving parent_irq in probe - Clearing the chained handler with NULL in ts4800_ic_remove() - Disposing all IRQ mappings before domain removal to prevent resource leaks The Linux kernel CVE team has assigned CVE-2026-72384 to this issue. Affected and fixed versions =========================== Issue introduced in 4.5 with commit d01f8633d52e4dac5ee598b87d49fd23346ccfd6 and fixed in 6.1.178 with commit b5b2b2cb6a91908e6c23958c9ce6d5ba2fdb686c Issue introduced in 4.5 with commit d01f8633d52e4dac5ee598b87d49fd23346ccfd6 and fixed in 6.6.145 with commit e6b674dc341c6add7d85bec2ec22caf1aad35795 Issue introduced in 4.5 with commit d01f8633d52e4dac5ee598b87d49fd23346ccfd6 and fixed in 6.12.97 with commit 3f31f49afffa169cd01e6c37568c4df3eb1051af Issue introduced in 4.5 with commit d01f8633d52e4dac5ee598b87d49fd23346ccfd6 and fixed in 6.18.40 with commit 4e8d498d32b6c67d73bb8b317ff316ff37897a3e Issue introduced in 4.5 with commit d01f8633d52e4dac5ee598b87d49fd23346ccfd6 and fixed in 7.1.5 with commit 9ed0dca2aa05908b33ecf0bb15c7953947529542 Issue introduced in 4.5 with commit d01f8633d52e4dac5ee598b87d49fd23346ccfd6 and fixed in 7.2-rc2 with commit 98bf7e54cec07d514b3575c11896a8b12d50ecc4 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-2026-72384 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/irqchip/irq-ts4800.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/b5b2b2cb6a91908e6c23958c9ce6d5ba2fdb686c https://git.kernel.org/stable/c/e6b674dc341c6add7d85bec2ec22caf1aad35795 https://git.kernel.org/stable/c/3f31f49afffa169cd01e6c37568c4df3eb1051af https://git.kernel.org/stable/c/4e8d498d32b6c67d73bb8b317ff316ff37897a3e https://git.kernel.org/stable/c/9ed0dca2aa05908b33ecf0bb15c7953947529542 https://git.kernel.org/stable/c/98bf7e54cec07d514b3575c11896a8b12d50ecc4