CVE-2025-37846

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Architecturally this is the only case where a src/dst/size\nfield in the ESR can be reported as 31.\n\nPrior to 2de451a329cf662b the code in do_el0_mops() was benign as the\nuse of pt_regs_read_reg() prevented the out-of-bounds access."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: arm64: mops: No desreferenciar el registro src para una operaci\u00f3n set. El registro fuente no se utiliza para SET* y leerlo puede resultar en un error de acceso a la matriz UBSAN fuera de los l\u00edmites, espec\u00edficamente cuando la excepci\u00f3n MOPS se toma de una secuencia SET* con XZR (reg 31) como origen. Arquitect\u00f3nicamente, este es el \u00fanico caso donde un campo src/dst/size en el ESR puede reportarse como 31. Antes de 2de451a329cf662b, el c\u00f3digo en do_el0_mops() era benigno ya que el uso de pt_regs_read_reg() imped\u00eda el acceso fuera de los l\u00edmites."}], "id": "CVE-2025-37846", "lastModified": "2026-11-05T21:17:55.553", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.2, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-37846", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-11-05T20:42:20.551748Z", "version": "2.0.3"}}]}, "published": "2025-05-09T07:16:05.430", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/43267d934eacff6c70e15545d804ebbcab8a0bf5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/5f6022a74147675124b781fdc056b291850e7786"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a13bfa4fe0d6949cea14718df2d1fe84c38cd113"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/eec737e17e5567e08148550a7f1d94d495b9fb17"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-125"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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