{"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": "2026-05-01T14:15:38.112Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-01T14:15:38.112Z"}, "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 \u2014 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": [{"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"}, {"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": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.6", "versionEndExcluding": "5.10.253"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.6", "versionEndExcluding": "5.15.203"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.6", "versionEndExcluding": "6.1.168"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.6", "versionEndExcluding": "6.6.134"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.6", "versionEndExcluding": "6.12.81"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.6", "versionEndExcluding": "6.18.22"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.6", "versionEndExcluding": "6.19.12"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.6", "versionEndExcluding": "7.0"}]}]}], "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"}, {"url": "https://git.kernel.org/stable/c/69402908e277dd164bf8d7c8fd0513c0fac28e9e"}, {"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", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "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 \u2014 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", "lastModified": "2026-05-01T15:24:14.893", "metrics": {}, "published": "2026-05-01T15:16:50.270", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0fda873092b541bb5a9b87d728a2429f863f8cfa"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2428083101f6883f979cceffa76cd8440751ffe6"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/4b75ff0aedd6ade1018ad4a3a9d8336794e36e42"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5d2249eefaca59908fe3c264b8eca526424dcfbe"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/69402908e277dd164bf8d7c8fd0513c0fac28e9e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f2664bc4f0f356f17c2094587a2b3665e3867e44"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f2dd9aaf6e2861337f5835f877a5b2becaf4b015"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ff134cc43972d7ddceff8cfd36cf6b9eaafc00b3"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: net: qrtr: replace qrtr_tx_flow radix_tree with xarray to fix memory leak", "id": "2464365", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2464365"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-772", "details": ["A flaw was found in the Linux kernel's `qrtr` networking module. This vulnerability occurs when the `__radix_tree_create()` function allocates intermediate nodes that are not properly reclaimed if subsequent memory allocations fail. This leads to orphaned internal nodes and a memory leak. This memory leak could potentially be exploited to cause a denial of service (DoS) by exhausting system resources."], "name": "CVE-2026-43041", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-05-01T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-43041\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-43041\nhttps://lore.kernel.org/linux-cve-announce/2026050104-CVE-2026-43041-eac4@gregkh/T"], "threat_severity": "Low"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[5fdeb0d372ab33b4175043a2a4a1730239a217f1,f2dd9aaf6e2861337f5835f877a5b2becaf4b015)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[5fdeb0d372ab33b4175043a2a4a1730239a217f1,4b75ff0aedd6ade1018ad4a3a9d8336794e36e42)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[5fdeb0d372ab33b4175043a2a4a1730239a217f1,ff134cc43972d7ddceff8cfd36cf6b9eaafc00b3)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[5fdeb0d372ab33b4175043a2a4a1730239a217f1,0fda873092b541bb5a9b87d728a2429f863f8cfa)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[5fdeb0d372ab33b4175043a2a4a1730239a217f1,69402908e277dd164bf8d7c8fd0513c0fac28e9e)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[5fdeb0d372ab33b4175043a2a4a1730239a217f1,f2664bc4f0f356f17c2094587a2b3665e3867e44)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[5fdeb0d372ab33b4175043a2a4a1730239a217f1,5d2249eefaca59908fe3c264b8eca526424dcfbe)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[5fdeb0d372ab33b4175043a2a4a1730239a217f1,2428083101f6883f979cceffa76cd8440751ffe6)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "5.6"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,5.6)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.10.253,5.11.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.15.203,5.16.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.1.168,6.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.134,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.81,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.22,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.19.12,6.20.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.0,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-05-01T21:00:08.399826+00:00", "updated": "2026-05-01T21:00:08.400004+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}