{"id":"CVE-2026-97972","summary":"net: macb: put the \"mdio\" child node reference on success","details":"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.","modified":"2026-09-26T03:48:27.906878153Z","published":"2026-09-25T10:23:12.139Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/97xxx/CVE-2026-97972.json"},"references":[{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"},{"type":"WEB","url":"https://git.kernel.org/stable/c/382a373d9ea7a6ac4de9c022385b6217f65ae3cc"},{"type":"WEB","url":"https://git.kernel.org/stable/c/5fba30080d298edb742396073372385c961578d3"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7d60dc7ff85b73a2119d582ca2d4456b30960380"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/97xxx/CVE-2026-97972.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-97972"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"8a6631f1cece09047fa44608d21d520ca65ce7d8"},{"fixed":"5fba30080d298edb742396073372385c961578d3"},{"fixed":"7d60dc7ff85b73a2119d582ca2d4456b30960380"},{"fixed":"382a373d9ea7a6ac4de9c022385b6217f65ae3cc"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-97972.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.53"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.2.7"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-97972.json"}}],"schema_version":"1.9.0"}