CVE-2022-48939

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INFORMACI\u00d3N: tarea kworker/1:1:27 bloqueada durante m\u00e1s de 140 segundos. INFORMACI\u00d3N: tarea colgada en rcu_barrier Nada impide que las operaciones por lotes procesen una gran cantidad de datos, necesitamos agregar puntos de programaci\u00f3n en ellas. Tenga en cuenta que las llamadas de Maybe_wait_bpf_programs(map) desde generic_map_delete_batch() se pueden factorizar moviendo la llamada despu\u00e9s del ciclo. Esto se har\u00e1 m\u00e1s adelante en el \u00e1rbol siguiente una vez que combinemos esta soluci\u00f3n, a menos que haya una opini\u00f3n firme sobre realizar esta optimizaci\u00f3n antes."}], "id": "CVE-2022-48939", "lastModified": "2026-06-17T05:16:39.923", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "LOW", "baseScore": 3.3, "baseSeverity": "LOW", "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:L", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 1.4, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2022-48939", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-09-10T15:32:24.541192Z", "version": "2.0.3"}}]}, "published": "2024-08-22T04:15:17.843", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/75134f16e7dd0007aa474b281935c5f42e79f2c8"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/7e8099967d0e3ff9d1ae043e80b27fbe46c08417"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/7ef94bfb08fb9e73defafbd5ddef6b5a0e2ee12b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/8628f489b749a4f9767991631921dbe3fbcdc784"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-834"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"affected_release": [{"advisory": "RHSA-2023:2458", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-284.11.1.el9_2", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2023-05-09T00:00:00Z"}, {"advisory": "RHSA-2023:2458", "cpe": "cpe:/o:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-284.11.1.el9_2", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2023-05-09T00:00:00Z"}], "bugzilla": {"description": "kernel: bpf: Add schedule points in batch ops", "id": "2307195", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2307195"}, "csaw": false, "cvss3": {"cvss3_base_score": "3.3", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L", "status": "verified"}, "cwe": "CWE-834", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nbpf: Add schedule points in batch ops\nsyzbot reported various soft lockups caused by bpf batch operations.\nINFO: task kworker/1:1:27 blocked for more than 140 seconds.\nINFO: task hung in rcu_barrier\nNothing prevents batch ops to process huge amount of data,\nwe need to add schedule points in them.\nNote that maybe_wait_bpf_programs(map) calls from\ngeneric_map_delete_batch() can be factorized by moving\nthe call after the loop.\nThis will be done later in -next tree once we get this fix merged,\nunless there is strong opinion doing this optimization sooner."], "name": "CVE-2022-48939", "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": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-08-22T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-48939\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-48939\nhttps://lore.kernel.org/linux-cve-announce/2024082226-CVE-2022-48939-ff01@gregkh/T"], "statement": "This issue is fixed in RHEL-9.2 and above\n~~~\nin (rhel-9.2, rhel-9.3, rhel-9.4, rhel-9.5) bpf: Add schedule points in batch ops\n~~~\nPlease note that while RHEL-9 kernel-rt still appears as affected, it has been fixed in the same RHSA as RHEL-9 kernel. This is because from RHEL-9.3 onwards, the kernel and kernel-rt fixes are bundled together in a single errata.", "threat_severity": "Low"}

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