CVE-2025-68333

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["kernel/sched/ext.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "541959b2fadb832a7d0ceb95041dc52bdcf6bff7", "status": "affected", "version": "5b26f7b920f76b2b9cc398c252a9e35e44bf5bb9", "versionType": "git"}, {"lessThan": "600b4379b9a7ba41340d652211fb29699da4c629", "status": "affected", "version": "5b26f7b920f76b2b9cc398c252a9e35e44bf5bb9", "versionType": "git"}, {"lessThan": "a257e974210320ede524f340ffe16bf4bf0dda1e", "status": "affected", "version": "5b26f7b920f76b2b9cc398c252a9e35e44bf5bb9", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["kernel/sched/ext.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.12"}, {"lessThan": "6.12", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.68", "versionType": "semver"}, {"lessThanOrEqual": "6.17.*", "status": "unaffected", "version": "6.17.12", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.18", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "F8C0E8D6-8E82-4C89-9E21-22B487A9E76D", "versionEndExcluding": "6.12.68", "versionStartIncluding": "6.12", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "F127AFC1-F5BC-4C9F-88BE-2D2092F99E33", "versionEndExcluding": "6.17.12", "versionStartIncluding": "6.13", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.18:rc1:*:*:*:*:*:*", "matchCriteriaId": "DD01661D-DFC8-4B6D-80E7-46D203CC4565", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.18:rc2:*:*:*:*:*:*", "matchCriteriaId": "A8A65C5A-918F-4E0B-8E98-08A29FFBA58A", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.18:rc3:*:*:*:*:*:*", "matchCriteriaId": "26CA425A-E44F-49D2-92D9-1DDD56398440", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.18:rc4:*:*:*:*:*:*", "matchCriteriaId": "BEEBB43A-4C9F-46BE-AA6D-9DBFD2244E55", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.18:rc5:*:*:*:*:*:*", "matchCriteriaId": "2545FB83-C4A6-4F62-9ED1-09F75D2E3C78", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.18:rc6:*:*:*:*:*:*", "matchCriteriaId": "E955EC5D-4684-4B5D-AE4D-F2BF9ADDBA1D", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "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."}], "id": "CVE-2025-68333", "lastModified": "2026-10-19T21:10:00.160", "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": "2025-12-22T17:16:01.020", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/541959b2fadb832a7d0ceb95041dc52bdcf6bff7"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/600b4379b9a7ba41340d652211fb29699da4c629"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a257e974210320ede524f340ffe16bf4bf0dda1e"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-667"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: sched_ext: Fix possible deadlock in the deferred_irq_workfn()", "id": "2424329", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2424329"}, "csaw": false, "details": ["No description is available for this CVE."], "name": "CVE-2025-68333", "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": "2025-12-22T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-68333\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-68333\nhttps://lore.kernel.org/linux-cve-announce/2025122219-CVE-2025-68333-4689@gregkh/T"]}

{}