{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "d0004a020bb50263de0e3e775c7b7c7a003e0e0c"
            },
            {
              "fixed": "3240e12fe203a3a79b9814e83327106b770ed7b0"
            },
            {
              "fixed": "1699b4d502eda3c7ea4070debad3ee570b5091b1"
            }
          ],
          "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-2022-49582.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: dsa: fix NULL pointer dereference in dsa_port_reset_vlan_filtering\n\nThe \"ds\" iterator variable used in dsa_port_reset_vlan_filtering() -\u003e\ndsa_switch_for_each_port() overwrites the \"dp\" received as argument,\nwhich is later used to call dsa_port_vlan_filtering() proper.\n\nAs a result, switches which do enter that code path (the ones with\nvlan_filtering_is_global=true) will dereference an invalid dp in\ndsa_port_reset_vlan_filtering() after leaving a VLAN-aware bridge.\n\nUse a dedicated \"other_dp\" iterator variable to avoid this from\nhappening.",
  "id": "CVE-2022-49582",
  "modified": "2026-04-01T23:09:37.306515239Z",
  "published": "2025-02-26T02:23:19.626Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1699b4d502eda3c7ea4070debad3ee570b5091b1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3240e12fe203a3a79b9814e83327106b770ed7b0"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49582.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49582"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "net: dsa: fix NULL pointer dereference in dsa_port_reset_vlan_filtering"
}