CVE-2022-49805 (GCVE-0-2022-49805)
Vulnerability from cvelistv5
Published
2025-05-01 14:09
Modified
2025-05-04 08:45
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: net: lan966x: Fix potential null-ptr-deref in lan966x_stats_init() lan966x_stats_init() calls create_singlethread_workqueue() and not checked the ret value, which may return NULL. And a null-ptr-deref may happen: lan966x_stats_init() create_singlethread_workqueue() # failed, lan966x->stats_queue is NULL queue_delayed_work() queue_delayed_work_on() __queue_delayed_work() # warning here, but continue __queue_work() # access wq->flags, null-ptr-deref Check the ret value and return -ENOMEM if it is NULL.
References
Impacted products
Vendor Product Version
Linux Linux Version: 12c2d0a5b8e2a1afc8c7738e19a0d1dd7f3d4007
Version: 12c2d0a5b8e2a1afc8c7738e19a0d1dd7f3d4007
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{
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          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/microchip/lan966x/lan966x_ethtool.c"
          ],
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        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: lan966x: Fix potential null-ptr-deref in lan966x_stats_init()\n\nlan966x_stats_init() calls create_singlethread_workqueue() and not\nchecked the ret value, which may return NULL. And a null-ptr-deref may\nhappen:\n\nlan966x_stats_init()\n    create_singlethread_workqueue() # failed, lan966x-\u003estats_queue is NULL\n    queue_delayed_work()\n        queue_delayed_work_on()\n            __queue_delayed_work()  # warning here, but continue\n                __queue_work()      # access wq-\u003eflags, null-ptr-deref\n\nCheck the ret value and return -ENOMEM if it is NULL."
        }
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      "providerMetadata": {
        "dateUpdated": "2025-05-04T08:45:43.623Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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        },
        {
          "url": "https://git.kernel.org/stable/c/ba86af3733aece88dbcee0dfebf7e2dcfefb2be4"
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      ],
      "title": "net: lan966x: Fix potential null-ptr-deref in lan966x_stats_init()",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49805",
    "datePublished": "2025-05-01T14:09:32.227Z",
    "dateReserved": "2025-05-01T14:05:17.225Z",
    "dateUpdated": "2025-05-04T08:45:43.623Z",
    "state": "PUBLISHED"
  },
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  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-49805\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-05-01T15:16:03.817\",\"lastModified\":\"2025-11-07T19:20:17.787\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnet: lan966x: Fix potential null-ptr-deref in lan966x_stats_init()\\n\\nlan966x_stats_init() calls create_singlethread_workqueue() and not\\nchecked the ret value, which may return NULL. And a null-ptr-deref may\\nhappen:\\n\\nlan966x_stats_init()\\n    create_singlethread_workqueue() # failed, lan966x-\u003estats_queue is NULL\\n    queue_delayed_work()\\n        queue_delayed_work_on()\\n            __queue_delayed_work()  # warning here, but continue\\n                __queue_work()      # access wq-\u003eflags, null-ptr-deref\\n\\nCheck the ret value and return -ENOMEM if it is NULL.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: lan966x: Se corrige un posible error de referencia nulo (PTR) en lan966x_stats_init(). Lan966x_stats_init() llama a create_singlethread_workqueue() y no verifica el valor ret, lo que puede devolver NULL. Podr\u00eda ocurrir un error de referencia nulo (PTR): lan966x_stats_init() create_singlethread_workqueue() # Fall\u00f3, lan966x-\u0026gt;stats_queue es NULL. queue_delayed_work() queue_delayed_work_on(). __queue_delayed_work() # Advertencia, pero contin\u00fae. __queue_work() # Acceso a wq-\u0026gt;flags, PTR-deref nulo. Verifique el valor ret y devuelva -ENOMEM si es NULL.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-476\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.17\",\"versionEndExcluding\":\"6.0.10\",\"matchCriteriaId\":\"88695986-D3E6-4EA8-89A8-C813D1E588AB\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"E7E331DA-1FB0-4DEC-91AC-7DA69D461C11\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.1:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"17F0B248-42CF-4AE6-A469-BB1BAE7F4705\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.1:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"E2422816-0C14-4B5E-A1E6-A9D776E5C49B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.1:rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"1C6E00FE-5FB9-4D20-A1A1-5A32128F9B76\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.1:rc5:*:*:*:*:*:*\",\"matchCriteriaId\":\"35B26BE4-43A6-4A36-A7F6-5B3F572D9186\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/4a43c1c6040e848e1344c7b16ac696b68fbc439c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/ba86af3733aece88dbcee0dfebf7e2dcfefb2be4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}"
  }
}


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