CVE-2022-48939

{"id": "CVE-2022-48939", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 3.3, "attackVector": "LOCAL", "baseSeverity": "LOW", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 1.4, "exploitabilityScore": 1.8}]}, "published": "2024-08-22T04:15:17.843", "references": [{"url": "https://git.kernel.org/stable/c/75134f16e7dd0007aa474b281935c5f42e79f2c8", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/7e8099967d0e3ff9d1ae043e80b27fbe46c08417", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/7ef94bfb08fb9e73defafbd5ddef6b5a0e2ee12b", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/8628f489b749a4f9767991631921dbe3fbcdc784", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-834"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Add schedule points in batch ops\n\nsyzbot reported various soft lockups caused by bpf batch operations.\n\n INFO: task kworker/1:1:27 blocked for more than 140 seconds.\n INFO: task hung in rcu_barrier\n\nNothing prevents batch ops to process huge amount of data,\nwe need to add schedule points in them.\n\nNote that maybe_wait_bpf_programs(map) calls from\ngeneric_map_delete_batch() can be factorized by moving\nthe call after the loop.\n\nThis will be done later in -next tree once we get this fix merged,\nunless there is strong opinion doing this optimization sooner."}, {"lang": "es", "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: bpf: agregar puntos de programaci\u00f3n en operaciones por lotes syzbot inform\u00f3 varios bloqueos suaves causados por operaciones por lotes de bpf. 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."}], "lastModified": "2024-08-22T19:02:08.770", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6C91B56F-6C5A-4448-903D-8AC2E4AC87C8", "versionEndExcluding": "5.10.103", "versionStartIncluding": "5.6"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9AB342AE-A62E-4947-A6EA-511453062B2B", "versionEndExcluding": "5.15.26", "versionStartIncluding": "5.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C76BAB21-7F23-4AD8-A25F-CA7B262A2698", "versionEndExcluding": "5.16.12", "versionStartIncluding": "5.16"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}