{"id":"CVE-2026-93273","summary":"regulator: tps6594: Fix device node reference leaks in multiphase loop","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nregulator: tps6594: Fix device node reference leaks in multiphase loop\n\nIn tps6594_regulator_probe(), the multi-phase configuration loop calls\nof_find_node_by_name() to find buck nodes by name, and of_get_parent()\ntwice to navigate to the PMIC parent node. None of the acquired node\nreferences (np, intermediate parent, np_pmic_parent) are ever released\nvia of_node_put(), causing a reference leak on every loop iteration.\n\nAdditionally, of_find_node_by_name() can return NULL, but the result was\nimmediately passed to of_node_full_name() and of_get_parent() without a\nNULL check, which could lead to a NULL pointer dereference.\n\nFix this by:\n- Adding a NULL check for np after of_find_node_by_name()\n- Storing the intermediate parent node in a local variable np_parent\n- Calling of_node_put() on np, np_parent and np_pmic_parent at the\n  end of each loop iteration","modified":"2026-09-25T03:48:54.534790233Z","published":"2026-09-24T15:52:15.213Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93273.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/28f70e0aa767a8f022c70ed75ecef227dc668121"},{"type":"WEB","url":"https://git.kernel.org/stable/c/4a672bff99f6b58dde419fd12b3a53da137f032d"},{"type":"WEB","url":"https://git.kernel.org/stable/c/68ce4f8223b78f8616ec7f4a02c38988eae627d2"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7fd28093b3effc4f92566466df364622830ec608"},{"type":"WEB","url":"https://git.kernel.org/stable/c/fceac25487b21d6db940d2aed368e465d89cd1f4"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93273.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-93273"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"f17ccc5deb4d024bb52fd3433471e77ab7ae9ad8"},{"fixed":"28f70e0aa767a8f022c70ed75ecef227dc668121"},{"fixed":"4a672bff99f6b58dde419fd12b3a53da137f032d"},{"fixed":"68ce4f8223b78f8616ec7f4a02c38988eae627d2"},{"fixed":"fceac25487b21d6db940d2aed368e465d89cd1f4"},{"fixed":"7fd28093b3effc4f92566466df364622830ec608"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-93273.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.5.0"},{"fixed":"6.6.157"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.110"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.52"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.2.6"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-93273.json"}}],"schema_version":"1.9.0"}