{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "b37a1bae742f92cc9b1f777d54e04ee3d86bbfc2"
            },
            {
              "fixed": "80e590aeb132887102c3fa79d99b338f099dc952"
            },
            {
              "fixed": "456327e565dc49d18b2f595f39f47df8a36f1057"
            },
            {
              "fixed": "639f5d006e36bb303f525d9479448c412b720c39"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49806.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: microchip: sparx5: Fix potential null-ptr-deref in sparx_stats_init() and sparx5_start()\n\nsparx_stats_init() calls create_singlethread_workqueue() and not\nchecked the ret value, which may return NULL. And a null-ptr-deref may\nhappen:\n\nsparx_stats_init()\n    create_singlethread_workqueue() # failed, sparx5-\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. So as\nsparx5_start().",
  "id": "CVE-2022-49806",
  "modified": "2026-04-01T23:10:37.798632185Z",
  "published": "2025-05-01T14:09:32.854Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/456327e565dc49d18b2f595f39f47df8a36f1057"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/639f5d006e36bb303f525d9479448c412b720c39"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/80e590aeb132887102c3fa79d99b338f099dc952"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49806.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49806"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.7.3",
  "summary": "net: microchip: sparx5: Fix potential null-ptr-deref in sparx_stats_init() and sparx5_start()"
}