CVE-2025-68333

{"id": "CVE-2025-68333", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "affected": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "affectedData": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5b26f7b920f76b2b9cc398c252a9e35e44bf5bb9", "lessThan": "541959b2fadb832a7d0ceb95041dc52bdcf6bff7", "versionType": "git"}, {"status": "affected", "version": "5b26f7b920f76b2b9cc398c252a9e35e44bf5bb9", "lessThan": "600b4379b9a7ba41340d652211fb29699da4c629", "versionType": "git"}, {"status": "affected", "version": "5b26f7b920f76b2b9cc398c252a9e35e44bf5bb9", "lessThan": "a257e974210320ede524f340ffe16bf4bf0dda1e", "versionType": "git"}], "programFiles": ["kernel/sched/ext.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "6.12"}, {"status": "unaffected", "version": "0", "lessThan": "6.12", "versionType": "semver"}, {"status": "unaffected", "version": "6.12.68", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.17.12", "versionType": "semver", "lessThanOrEqual": "6.17.*"}, {"status": "unaffected", "version": "6.18", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["kernel/sched/ext.c"], "defaultStatus": "affected"}]}], "published": "2025-12-22T17:16:01.020", "references": [{"url": "https://git.kernel.org/stable/c/541959b2fadb832a7d0ceb95041dc52bdcf6bff7", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/600b4379b9a7ba41340d652211fb29699da4c629", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/a257e974210320ede524f340ffe16bf4bf0dda1e", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-667"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsched_ext: Fix possible deadlock in the deferred_irq_workfn()\n\nFor PREEMPT_RT=y kernels, the deferred_irq_workfn() is executed in\nthe per-cpu irq_work/* task context and not disable-irq, if the rq\nreturned by container_of() is current CPU's rq, the following scenarios\nmay occur:\n\nlock(&rq->__lock);\n<Interrupt>\n lock(&rq->__lock);\n\nThis commit use IRQ_WORK_INIT_HARD() to replace init_irq_work() to\ninitialize rq->scx.deferred_irq_work, make the deferred_irq_workfn()\nis always invoked in hard-irq context."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad:\\n\\nsched_ext: Corrige posible interbloqueo en deferred_irq_workfn()\\n\\nPara kernels PREEMPT_RT=y, deferred_irq_workfn() se ejecuta en el contexto de tarea per?cpu irq_work/* y no en disable?irq. Si el rq devuelto por container_of() corresponde al rq de la CPU actual, pueden producirse los siguientes escenarios:\\n\\nlock(&rq -> __lock);\\n<Interrupt>\\n lock(&rq -> __lock);\\n\\nEste commit utiliza IRQ_WORK_INIT_HARD() para reemplazar init_irq_work() y inicializar rq -> scx.deferred_irq_work, de modo que deferred_irq_workfn() siempre se invoque en contexto hard?irq."}], "lastModified": "2026-10-19T21:10:00.160", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F8C0E8D6-8E82-4C89-9E21-22B487A9E76D", "versionEndExcluding": "6.12.68", "versionStartIncluding": "6.12"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F127AFC1-F5BC-4C9F-88BE-2D2092F99E33", "versionEndExcluding": "6.17.12", "versionStartIncluding": "6.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.18:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DD01661D-DFC8-4B6D-80E7-46D203CC4565"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.18:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A8A65C5A-918F-4E0B-8E98-08A29FFBA58A"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.18:rc3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "26CA425A-E44F-49D2-92D9-1DDD56398440"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.18:rc4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BEEBB43A-4C9F-46BE-AA6D-9DBFD2244E55"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.18:rc5:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2545FB83-C4A6-4F62-9ED1-09F75D2E3C78"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.18:rc6:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E955EC5D-4684-4B5D-AE4D-F2BF9ADDBA1D"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}