CVE-2026-43231

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The v4l2 control handler is\ninitialized and controls are added, but if v4l2_device_register() or\nvideo_register_device() fails afterward, the handler was never freed,\nleaking memory.\n\nAdd v4l2_ctrl_handler_free() call in the err_v4l2 error path to ensure\nthe control handler is properly freed for all error paths after it is\ninitialized."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/media/radio/radio-keene.c"], "versions": [{"version": "1bf20c3a0c616f44359c573b533d06bae960ee45", "lessThan": "ad85bb5623079a35bd400f51de2e2fbc2170bdb2", "status": "affected", "versionType": "git"}, {"version": "1bf20c3a0c616f44359c573b533d06bae960ee45", "lessThan": "242b0aabb1866024a7995a767ac330c158b39aa4", "status": "affected", "versionType": "git"}, {"version": "1bf20c3a0c616f44359c573b533d06bae960ee45", "lessThan": 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"https://git.kernel.org/stable/c/b8bf939d77c0cd01118e953bbf554e0fa15e9006"}], "title": "media: radio-keene: fix memory leak in error path", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

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The v4l2 control handler is\ninitialized and controls are added, but if v4l2_device_register() or\nvideo_register_device() fails afterward, the handler was never freed,\nleaking memory.\n\nAdd v4l2_ctrl_handler_free() call in the err_v4l2 error path to ensure\nthe control handler is properly freed for all error paths after it is\ninitialized."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nmedia: radio-keene: corregir fuga de memoria en la ruta de error\n\nCorregir una fuga de memoria en usb_keene_probe(). El gestor de control v4l2 es inicializado y se a\u00f1aden controles, pero si v4l2_device_register() o video_register_device() falla despu\u00e9s, el gestor nunca fue liberado, fugando memoria.\n\nA\u00f1adir llamada a v4l2_ctrl_handler_free() en la ruta de error err_v4l2 para asegurar que el gestor de control sea liberado correctamente para todas las rutas de error despu\u00e9s de ser inicializado."}], "id": "CVE-2026-43231", "lastModified": "2026-11-11T20:10:00.273", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2026-05-06T12:16:43.083", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/1d8558a232ecb187e8e0328d6347a125f437a0fc"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/242b0aabb1866024a7995a767ac330c158b39aa4"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/27c508f61963013fdf29097578284099ee7a85a4"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2fe28a63d598235595a9601e0d8fdc7c8f4fd575"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/7fa9754f48cb8eefa566156be341e63d313247e5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/ad85bb5623079a35bd400f51de2e2fbc2170bdb2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/b8bf939d77c0cd01118e953bbf554e0fa15e9006"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/de204d87e7d61859937272fe30cbdd46a4cfb10a"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-401"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: media: radio-keene: fix memory leak in error path", "id": "2467072", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2467072"}, "csaw": false, "cwe": "CWE-772", "details": ["A flaw was found in the `media: radio-keene` driver within the Linux kernel. This vulnerability occurs due to a memory leak in the `usb_keene_probe()` function's error path. If device registration fails, the video for Linux 2 (v4l2) control handler is not properly released, causing memory to be consumed over time. This can eventually lead to a Denial of Service (DoS) condition, making the system unstable or unresponsive."], "name": "CVE-2026-43231", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-05-06T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-43231\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-43231\nhttps://lore.kernel.org/linux-cve-announce/2026050656-CVE-2026-43231-6c4b@gregkh/T"]}

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