CVE-2024-50144

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It looks like we can just drop the fini() call since the\nfence signaller side will already call this for us.\n\nThere are known mysterious splats with device going to sleep even with\nan rpm ref, and this could be one candidate.\n\nv2 (Matt B):\n - Prefer warning if we detect double fini()\n\n(cherry picked from commit cfcbc0520d5055825f0647ab922b655688605183)"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/xe: corregir rpm put() desequilibrado con fence_fini() Actualmente podemos llamar a fence_fini() dos veces si algo sale mal al enviar el GuC CT para la solicitud tlb, ya que se\u00f1alamos a fence y devolvemos un error, lo que lleva a que el llamador tambi\u00e9n llame a fini() en la ruta de error en el caso de la versi\u00f3n de pila del flujo, lo que lleva a un rpm put() adicional que m\u00e1s tarde podr\u00eda hacer que el dispositivo entre en suspensi\u00f3n cuando no deber\u00eda. Parece que podemos simplemente descartar la llamada a fini() ya que el lado del se\u00f1alizador de fence ya lo llamar\u00e1 por nosotros. Hay splats misteriosos conocidos con el dispositivo entrando en suspensi\u00f3n incluso con una referencia rpm, y este podr\u00eda ser un candidato. v2 (Matt B): - Preferimos advertencia si detectamos fini() doble (seleccionado de el commit cfcbc0520d5055825f0647ab922b655688605183)"}], "id": "CVE-2024-50144", "lastModified": "2026-06-17T08:03:42.203", "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"}, {"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": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2024-50144", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2025-10-01T20:20:57.244026Z", "version": "2.0.3"}}]}, "published": "2024-11-07T10:15:06.310", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/03a86c24aea0920a1ca20a0d7771d5e176db538d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/046bd018c0123b1a49c22abed5f9ea31d1454c78"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: drm/xe: fix unbalanced rpm put() with fence_fini()", "id": "2324415", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2324415"}, "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-664", "details": ["In the Linux kernel, the following vulnerability has been resolved:\ndrm/xe: fix unbalanced rpm put() with fence_fini()\nCurrently we can call fence_fini() twice if something goes wrong when\nsending the GuC CT for the tlb request, since we signal the fence and\nreturn an error, leading to the caller also calling fini() on the error\npath in the case of stack version of the flow, which leads to an extra\nrpm put() which might later cause device to enter suspend when it\nshouldn't. It looks like we can just drop the fini() call since the\nfence signaller side will already call this for us.\nThere are known mysterious splats with device going to sleep even with\nan rpm ref, and this could be one candidate.\nv2 (Matt B):\n- Prefer warning if we detect double fini()\n(cherry picked from commit cfcbc0520d5055825f0647ab922b655688605183)"], "name": "CVE-2024-50144", "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": "2024-11-07T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-50144\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-50144\nhttps://lore.kernel.org/linux-cve-announce/2024110743-CVE-2024-50144-973b@gregkh/T"], "threat_severity": "Moderate"}

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