{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-43041",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-05-01T14:12:55.978Z",
        "datePublished": "2026-05-01T14:15:38.112Z",
        "dateUpdated": "2026-05-11T22:16:34.530Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T22:16:34.530Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "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/"
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/qrtr/af_qrtr.c"
                    ],
                    "versions": [
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                            "version": "5fdeb0d372ab33b4175043a2a4a1730239a217f1",
                            "lessThan": "f2dd9aaf6e2861337f5835f877a5b2becaf4b015",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5fdeb0d372ab33b4175043a2a4a1730239a217f1",
                            "lessThan": "4b75ff0aedd6ade1018ad4a3a9d8336794e36e42",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5fdeb0d372ab33b4175043a2a4a1730239a217f1",
                            "lessThan": "ff134cc43972d7ddceff8cfd36cf6b9eaafc00b3",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5fdeb0d372ab33b4175043a2a4a1730239a217f1",
                            "lessThan": "0fda873092b541bb5a9b87d728a2429f863f8cfa",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5fdeb0d372ab33b4175043a2a4a1730239a217f1",
                            "lessThan": "69402908e277dd164bf8d7c8fd0513c0fac28e9e",
                            "status": "affected",
                            "versionType": "git"
                        },
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                            "version": "5fdeb0d372ab33b4175043a2a4a1730239a217f1",
                            "lessThan": "f2664bc4f0f356f17c2094587a2b3665e3867e44",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5fdeb0d372ab33b4175043a2a4a1730239a217f1",
                            "lessThan": "5d2249eefaca59908fe3c264b8eca526424dcfbe",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5fdeb0d372ab33b4175043a2a4a1730239a217f1",
                            "lessThan": "2428083101f6883f979cceffa76cd8440751ffe6",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/qrtr/af_qrtr.c"
                    ],
                    "versions": [
                        {
                            "version": "5.6",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.6",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.253",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.203",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.168",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.134",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.81",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.22",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.19.12",
                            "lessThanOrEqual": "6.19.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.0",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
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                                    "vulnerable": true,
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            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/f2dd9aaf6e2861337f5835f877a5b2becaf4b015"
                },
                {
                    "url": "https://git.kernel.org/stable/c/4b75ff0aedd6ade1018ad4a3a9d8336794e36e42"
                },
                {
                    "url": "https://git.kernel.org/stable/c/ff134cc43972d7ddceff8cfd36cf6b9eaafc00b3"
                },
                {
                    "url": "https://git.kernel.org/stable/c/0fda873092b541bb5a9b87d728a2429f863f8cfa"
                },
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                    "url": "https://git.kernel.org/stable/c/69402908e277dd164bf8d7c8fd0513c0fac28e9e"
                },
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                    "url": "https://git.kernel.org/stable/c/f2664bc4f0f356f17c2094587a2b3665e3867e44"
                },
                {
                    "url": "https://git.kernel.org/stable/c/5d2249eefaca59908fe3c264b8eca526424dcfbe"
                },
                {
                    "url": "https://git.kernel.org/stable/c/2428083101f6883f979cceffa76cd8440751ffe6"
                }
            ],
            "title": "net: qrtr: replace qrtr_tx_flow radix_tree with xarray to fix memory leak",
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