From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 A715D165EFC for ; Thu, 27 Feb 2025 02:13:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740622386; cv=none; b=qjQ5uXoz+LGNuZCvuoyPKQH7Zt7/AMqr3cFQLQwCEv/yV6IMXwGxUbq+eSHUbXhIiNNh2bl7v8ib3ZZoQbvWTqEjKeBRgHukCmsQJZI493Zo26p7a3pMmfxW5bYasqXduiaR7pjEa09f7mpnJ2OxcIq5TINdm3LT+s7RiIILXd4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740622386; c=relaxed/simple; bh=+lhjnhykfbck+t0KrJdYBOPDyTpJyM4bX+riszM9FBQ=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=NBig29X4tPIKUFMERD+tCAJzKsTppHTOXjtHyzFo1OYP/EXa5dFJjXL/gHqoEfcCr2DP2RFiHJ+wOsI5bCgSxtUDI+r/p4a7XDJYabCKK50DEiUwPRcsotWuqv8NhbvsKBuMFdcqPORfFS7g7HIEK3H/dyVmEoJBTGOIYqGeF/I= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=Mvlm7YwC; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="Mvlm7YwC" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1AF69C4CEE2; Thu, 27 Feb 2025 02:13:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1740622386; bh=+lhjnhykfbck+t0KrJdYBOPDyTpJyM4bX+riszM9FBQ=; h=From:To:Cc:Subject:Date:Reply-to:From; b=Mvlm7YwCajJgnuWRJy5AiDn97t2YHv8Em/8FV8w3MGK3gIwQs9tSbmjTjMzGOjYWX p4G2Pp84er+2zdem/sLoPduuEaXzD01+vD9np8FTlKkINekZEinJoGL/5la3dsI6v6 7ikDiuXiGfUjEuCxPRUJ6hi4UHNADqoCUObV43Fc= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2024-58002: media: uvcvideo: Remove dangling pointers Date: Wed, 26 Feb 2025 18:10:56 -0800 Message-ID: <2025022654-CVE-2024-58002-6f93@gregkh> X-Mailer: git-send-email 2.48.1 Precedence: bulk X-Mailing-List: linux-cve-announce@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Reply-to: , X-Developer-Signature: v=1; a=openpgp-sha256; l=2653; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=+lhjnhykfbck+t0KrJdYBOPDyTpJyM4bX+riszM9FBQ=; b=owGbwMvMwCRo6H6F97bub03G02pJDOn7T67jPhDX9CY1xvyT579PuY8biiPseG1lEyZULllsv /aXjbBPRywLgyATg6yYIsuXbTxH91ccUvQytD0NM4eVCWQIAxenAEzkginDgomf2t3MAvzKNm2c 5BDHfOBMebh2HMNcCdMP12K4fhf3eG9XvSHKnqcck3UKAA== X-Developer-Key: i=gregkh@linuxfoundation.org; a=openpgp; fpr=F4B60CC5BF78C2214A313DCB3147D40DDB2DFB29 Content-Transfer-Encoding: 8bit Description =========== In the Linux kernel, the following vulnerability has been resolved: media: uvcvideo: Remove dangling pointers When an async control is written, we copy a pointer to the file handle that started the operation. That pointer will be used when the device is done. Which could be anytime in the future. If the user closes that file descriptor, its structure will be freed, and there will be one dangling pointer per pending async control, that the driver will try to use. Clean all the dangling pointers during release(). To avoid adding a performance penalty in the most common case (no async operation), a counter has been introduced with some logic to make sure that it is properly handled. The Linux kernel CVE team has assigned CVE-2024-58002 to this issue. Affected and fixed versions =========================== Issue introduced in 4.19 with commit e5225c820c057537dc780244760e2e24c7d27366 and fixed in 6.12.14 with commit 438bda062b2c40ddd7df23b932e29ffe0a448cac Issue introduced in 4.19 with commit e5225c820c057537dc780244760e2e24c7d27366 and fixed in 6.13.3 with commit 9edc7d25f7e49c33a1ce7a5ffadea2222065516c Issue introduced in 4.19 with commit e5225c820c057537dc780244760e2e24c7d27366 and fixed in 6.14-rc1 with commit 221cd51efe4565501a3dbf04cc011b537dcce7fb 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-2024-58002 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/usb/uvc/uvc_ctrl.c drivers/media/usb/uvc/uvc_v4l2.c drivers/media/usb/uvc/uvcvideo.h 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/438bda062b2c40ddd7df23b932e29ffe0a448cac https://git.kernel.org/stable/c/9edc7d25f7e49c33a1ce7a5ffadea2222065516c https://git.kernel.org/stable/c/221cd51efe4565501a3dbf04cc011b537dcce7fb