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 DB8DA4F7CB9 for ; Thu, 17 Sep 2026 16:35:54 +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=1789662956; cv=none; b=nTWMTduZb1Nqkf+eo6l21vfMQ97tpMKyJvi8S4yH8vxerhmG1qyd0ZUq+y6G1V/o1uxZSs7igon7KmAGXDmdkXjhjUBEa9GNK0kzXpLZxqmRH4CEA6M4IAwpyh5olw/YbF6CGFCuEIA48A4U8sUvRzdy7Vrtfcyx6tmLyj6dS+s= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789662956; c=relaxed/simple; bh=+iobSpxY7zQjWCvoVHNSMJ0Gf24adIXXHoEDeXS3AAs=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=fSyygrMTdmNn+5c4RUMH0vKzQY22KE0wSZTeemavt0HSdozjCO8CV2iUECoOuxelEPc8YIp4HRgSqqkPoYeJDVc2I6QExPKGgcua6/yPic7op+4ekUBZpIPCgeR9z8dMESOEliOD2kC5Wss28PlNp6BSKFrwvqCaODzdduoJG1w= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=x2zscIRL; 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="x2zscIRL" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 16BEF1F000FF; Thu, 17 Sep 2026 16:35:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1789662954; bh=BSmkR7ixgc7wbZMeSvOvglZkz/li0AMPe6/boTduS8w=; h=From:To:Cc:Subject:Date:Reply-To; b=x2zscIRL21lbwTkf5m8P0+UaTALOYGsTsOvvlqcmk6qdXw7+wJWvTwBiOfJGCp8XY EZ6rVjUBcM+0hJwYvlBrPq3u5mS1IgfC1wPI9ZuMXH4fW2/A+uIB6FJ7cQGEfZ/uCP KXzdPF/XZ5lHEqmlYpxy4XWgLrCcUqIMHGMDv3Vc= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2026-93070: media: ipu6: Do not free aux device pdata after init Date: Thu, 17 Sep 2026 17:15:49 +0100 Message-ID: <2026091739-CVE-2026-93070-afca@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=3000; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=KWfVuIgrvZBEWJuJmr6nD9c5aBc1/CG70Tg3OLXdIfE=; b=owGbwMvMwCRo6H6F97bub03G02pJDFlrBA7n7RI2LonierVzm8UJ7icXekwVhI7G+v+7x/HS0 N5ah/thRwwLgyATg6yYIsuXbTxH91ccUvQytD0NM4eVCWQIAxenAEzEnI9hwWWnwpDOxTenvmP5 I3E/qj6/y5rLlmHG2h2pnEuizqd1TrAQF4xcv/Deo3IA 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: media: ipu6: Do not free aux device pdata after init ipu6_bus_initialize_device() stores the isys/psys pdata pointer in struct ipu6_bus_device and initializes the auxiliary device. After that point, error unwinding must drop the auxiliary device reference and let ipu6_bus_release() free both the bus device and adev->pdata. The isys and psys init paths already call put_device() when MMU initialization fails, and ipu6_bus_add_device() calls auxiliary_device_uninit() on auxiliary_device_add() failure. Both paths therefore run the bus release callback. The extra kfree(pdata) in the callers can release the same object a second time. Remove the manual pdata frees after the auxiliary device has been initialized. This issue was found by a static analysis checker and confirmed by manual source review. The Linux kernel CVE team has assigned CVE-2026-93070 to this issue. Affected and fixed versions =========================== Issue introduced in 6.10 with commit cb3117b074aefb0320d8d728a0a7f277a121adbd and fixed in 6.12.110 with commit faa1eb97f0e66bf122f44b62be6b323f86333e9f Issue introduced in 6.10 with commit cb3117b074aefb0320d8d728a0a7f277a121adbd and fixed in 6.18.52 with commit 5323ed5a7bb2568191ec676b2035b0396105aa05 Issue introduced in 6.10 with commit cb3117b074aefb0320d8d728a0a7f277a121adbd and fixed in 7.2.6 with commit 7d102d1f0631807a491a140f67c9628dea85dfd2 Issue introduced in 6.10 with commit cb3117b074aefb0320d8d728a0a7f277a121adbd and fixed in 7.3-rc1 with commit 9be07216af4cfc4813e1a46ce26407d31ea845de 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-2026-93070 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/media/pci/intel/ipu6/ipu6.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/faa1eb97f0e66bf122f44b62be6b323f86333e9f https://git.kernel.org/stable/c/5323ed5a7bb2568191ec676b2035b0396105aa05 https://git.kernel.org/stable/c/7d102d1f0631807a491a140f67c9628dea85dfd2 https://git.kernel.org/stable/c/9be07216af4cfc4813e1a46ce26407d31ea845de