CVE-2024-46867

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Fix that by dropping the ref\nusing xe_bo_put_deferred(), and moving the final commit outside of the\nlock. Dropping the lock around the put is tricky since the bo can go\nout of scope and delete itself from the list, making it difficult to\nnavigate to the next list entry.\n\n(cherry picked from commit 0083b8e6f11d7662283a267d4ce7c966812ffd8a)"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/xe/client: se corrige el bloqueo en show_meminfo(). Hay un bloqueo real, as\u00ed como un error de suspensi\u00f3n en atomic(), si resulta que la put de bo es la \u00faltima referencia, ya que la destrucci\u00f3n de bo quiere tomar el mismo spinlock y los bloqueos inactivos. Arregle eso eliminando la referencia usando xe_bo_put_deferred() y moviendo el commit final fuera del bloqueo. Eliminar el bloqueo alrededor de la put es complicado, ya que el bo puede salir del \u00e1mbito y eliminarse a s\u00ed mismo de la lista, lo que dificulta la navegaci\u00f3n a la siguiente entrada de la lista. (seleccionado de el commit 0083b8e6f11d7662283a267d4ce7c966812ffd8a)"}], "id": "CVE-2024-46867", "lastModified": "2026-06-17T07:56:06.827", "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"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2024-46867", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-09-29T13:36:32.110545Z", "version": "2.0.3"}}]}, "published": "2024-09-27T13:15:17.937", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/9bd7ff293fc84792514aeafa06c5a17f05cb5f4b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/9d3de463e23bfb1ff1567a32b099b1b3e5286a48"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-667"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: drm/xe/client: fix deadlock in show_meminfo()", "id": "2315219", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2315219"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-833", "details": ["In the Linux kernel, the following vulnerability has been resolved:\ndrm/xe/client: fix deadlock in show_meminfo()\nThere is a real deadlock as well as sleeping in atomic() bug in here, if\nthe bo put happens to be the last ref, since bo destruction wants to\ngrab the same spinlock and sleeping locks. Fix that by dropping the ref\nusing xe_bo_put_deferred(), and moving the final commit outside of the\nlock. Dropping the lock around the put is tricky since the bo can go\nout of scope and delete itself from the list, making it difficult to\nnavigate to the next list entry.\n(cherry picked from commit 0083b8e6f11d7662283a267d4ce7c966812ffd8a)"], "name": "CVE-2024-46867", "package_state": [{"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": "2024-09-27T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-46867\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-46867\nhttps://lore.kernel.org/linux-cve-announce/2024092746-CVE-2024-46867-7fe4@gregkh/T"], "threat_severity": "Low"}

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