{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "5fdeb0d372ab33b4175043a2a4a1730239a217f1"
            },
            {
              "fixed": "f2dd9aaf6e2861337f5835f877a5b2becaf4b015"
            },
            {
              "fixed": "4b75ff0aedd6ade1018ad4a3a9d8336794e36e42"
            },
            {
              "fixed": "ff134cc43972d7ddceff8cfd36cf6b9eaafc00b3"
            },
            {
              "fixed": "0fda873092b541bb5a9b87d728a2429f863f8cfa"
            },
            {
              "fixed": "69402908e277dd164bf8d7c8fd0513c0fac28e9e"
            },
            {
              "fixed": "f2664bc4f0f356f17c2094587a2b3665e3867e44"
            },
            {
              "fixed": "5d2249eefaca59908fe3c264b8eca526424dcfbe"
            },
            {
              "fixed": "2428083101f6883f979cceffa76cd8440751ffe6"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.6.0"
            },
            {
              "fixed": "5.10.253"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.203"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.168"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.134"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.81"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.22"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "6.19.12"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43041.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: qrtr: replace qrtr_tx_flow radix_tree with xarray to fix memory leak\n\n__radix_tree_create() allocates and links intermediate nodes into the\ntree one by one. If a subsequent allocation fails, the already-linked\nnodes remain in the tree with no corresponding leaf entry. These orphaned\ninternal nodes are never reclaimed because radix_tree_for_each_slot()\nonly visits slots containing leaf values.\n\nThe radix_tree API is deprecated in favor of xarray. As suggested by\nMatthew Wilcox, migrate qrtr_tx_flow from radix_tree to xarray instead\nof fixing the radix_tree itself [1]. xarray properly handles cleanup of\ninternal nodes — xa_destroy() frees all internal xarray nodes when the\nqrtr_node is released, preventing the leak.\n\n[1] https://lore.kernel.org/all/20260225071623.41275-1-jiayuan.chen@linux.dev/T/",
  "id": "CVE-2026-43041",
  "modified": "2026-07-08T05:37:55.422718650Z",
  "published": "2026-05-01T14:15:38.112Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0fda873092b541bb5a9b87d728a2429f863f8cfa"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2428083101f6883f979cceffa76cd8440751ffe6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4b75ff0aedd6ade1018ad4a3a9d8336794e36e42"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5d2249eefaca59908fe3c264b8eca526424dcfbe"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/69402908e277dd164bf8d7c8fd0513c0fac28e9e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f2664bc4f0f356f17c2094587a2b3665e3867e44"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f2dd9aaf6e2861337f5835f877a5b2becaf4b015"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ff134cc43972d7ddceff8cfd36cf6b9eaafc00b3"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43041.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-43041"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.7.5",
  "summary": "net: qrtr: replace qrtr_tx_flow radix_tree with xarray to fix memory leak"
}