{"api_version":"1","generated_at":"2026-10-03T09:50:54+00:00","cve":"CVE-2026-97972","urls":{"html":"https://cve.report/CVE-2026-97972","api":"https://cve.report/api/cve/CVE-2026-97972.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-97972","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-97972"},"summary":{"title":"net: macb: put the \"mdio\" child node reference on success","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: macb: put the \"mdio\" child node reference on success\n\nmacb_mii_init() holds the reference returned by of_get_child_by_name()\nfor macb_mdiobus_register() and drops it only on the error paths, so\nevery successful probe leaks a node reference. On a CM5, overlay\nremoval after four bind cycles reports\n\n  OF: ERROR: memory leak, expected refcount 1 instead of 5\n\nDrop the reference after registration, where __mdiobus_register() has\nalready taken its own for the lifetime of the bus.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-09-25 11:17:25","updated_at":"2026-09-25 11:17:25"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/7d60dc7ff85b73a2119d582ca2d4456b30960380","name":"https://git.kernel.org/stable/c/7d60dc7ff85b73a2119d582ca2d4456b30960380","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/382a373d9ea7a6ac4de9c022385b6217f65ae3cc","name":"https://git.kernel.org/stable/c/382a373d9ea7a6ac4de9c022385b6217f65ae3cc","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/5fba30080d298edb742396073372385c961578d3","name":"https://git.kernel.org/stable/c/5fba30080d298edb742396073372385c961578d3","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-97972","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-97972","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 8a6631f1cece09047fa44608d21d520ca65ce7d8 5fba30080d298edb742396073372385c961578d3 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 8a6631f1cece09047fa44608d21d520ca65ce7d8 7d60dc7ff85b73a2119d582ca2d4456b30960380 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 8a6631f1cece09047fa44608d21d520ca65ce7d8 382a373d9ea7a6ac4de9c022385b6217f65ae3cc git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.13","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.13 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.53 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2.7 7.2.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.3-rc3 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"97972","cve":"CVE-2026-97972","epss":"0.001660000","percentile":"0.051950000","score_date":"2026-09-27","updated_at":"2026-09-28 00:02:24"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/net/ethernet/cadence/macb_main.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"5fba30080d298edb742396073372385c961578d3","status":"affected","version":"8a6631f1cece09047fa44608d21d520ca65ce7d8","versionType":"git"},{"lessThan":"7d60dc7ff85b73a2119d582ca2d4456b30960380","status":"affected","version":"8a6631f1cece09047fa44608d21d520ca65ce7d8","versionType":"git"},{"lessThan":"382a373d9ea7a6ac4de9c022385b6217f65ae3cc","status":"affected","version":"8a6631f1cece09047fa44608d21d520ca65ce7d8","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/net/ethernet/cadence/macb_main.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.13"},{"lessThan":"6.13","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.53","versionType":"semver"},{"lessThanOrEqual":"7.2.*","status":"unaffected","version":"7.2.7","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.3-rc3","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.53","versionStartIncluding":"6.13","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.7","versionStartIncluding":"6.13","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3-rc3","versionStartIncluding":"6.13","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: macb: put the \"mdio\" child node reference on success\n\nmacb_mii_init() holds the reference returned by of_get_child_by_name()\nfor macb_mdiobus_register() and drops it only on the error paths, so\nevery successful probe leaks a node reference. On a CM5, overlay\nremoval after four bind cycles reports\n\n  OF: ERROR: memory leak, expected refcount 1 instead of 5\n\nDrop the reference after registration, where __mdiobus_register() has\nalready taken its own for the lifetime of the bus."}],"providerMetadata":{"dateUpdated":"2026-09-25T10:23:12.139Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/5fba30080d298edb742396073372385c961578d3"},{"url":"https://git.kernel.org/stable/c/7d60dc7ff85b73a2119d582ca2d4456b30960380"},{"url":"https://git.kernel.org/stable/c/382a373d9ea7a6ac4de9c022385b6217f65ae3cc"}],"title":"net: macb: put the \"mdio\" child node reference on success","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-97972","datePublished":"2026-09-25T10:23:12.139Z","dateReserved":"2026-09-25T10:18:58.207Z","dateUpdated":"2026-09-25T10:23:12.139Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-09-25 11:17:25","lastModifiedDate":"2026-09-25 11:17:25","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"97972","Ordinal":"1","Title":"net: macb: put the \"mdio\" child node reference on success","CVE":"CVE-2026-97972","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"97972","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: macb: put the \"mdio\" child node reference on success\n\nmacb_mii_init() holds the reference returned by of_get_child_by_name()\nfor macb_mdiobus_register() and drops it only on the error paths, so\nevery successful probe leaks a node reference. On a CM5, overlay\nremoval after four bind cycles reports\n\n  OF: ERROR: memory leak, expected refcount 1 instead of 5\n\nDrop the reference after registration, where __mdiobus_register() has\nalready taken its own for the lifetime of the bus.","Type":"Description","Title":"net: macb: put the \"mdio\" child node reference on success"}]}}}