{"id":"CVE-2026-93273","title":"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…","summary":"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…","severity":"medium","vendor":"Linux","product":"Linux","affected":["Linux >= f17ccc5deb4d024bb52fd3433471e77ab7ae9ad8 < 28f70e0aa767a8f022c70ed75ecef227dc668121","Linux >= f17ccc5deb4d024bb52fd3433471e77ab7ae9ad8 < 4a672bff99f6b58dde419fd12b3a53da137f032d","Linux >= f17ccc5deb4d024bb52fd3433471e77ab7ae9ad8 < 68ce4f8223b78f8616ec7f4a02c38988eae627d2","Linux >= f17ccc5deb4d024bb52fd3433471e77ab7ae9ad8 < fceac25487b21d6db940d2aed368e465d89cd1f4","Linux >= f17ccc5deb4d024bb52fd3433471e77ab7ae9ad8 < 7fd28093b3effc4f92566466df364622830ec608","Linux 6.5"],"published":"2026-09-24","updated":"2026-09-24","sourceUpdated":"2026-09-24T16:17:24.400","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-93273","references":[{"url":"https://git.kernel.org/stable/c/28f70e0aa767a8f022c70ed75ecef227dc668121","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/4a672bff99f6b58dde419fd12b3a53da137f032d","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/68ce4f8223b78f8616ec7f4a02c38988eae627d2","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/7fd28093b3effc4f92566466df364622830ec608","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/fceac25487b21d6db940d2aed368e465d89cd1f4","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-93273.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-93273"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2540355"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-93273"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-93273"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-93273.mbox"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"ingestedAt":"2026-09-24T16:47:15.839Z","epss":0.00186,"epssPercentile":0.08159,"cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cvssSource":"vendor","cwe":["CWE-476"],"slug":"CVE-2026-93273","body":"## Overview\n\nIn 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\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Low · affected: Red Hat Enterprise Linux 10 · no fix planned: Red Hat Enterprise Linux 10 · updated 2026-10-17 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-93273.json)","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":224223,"id":"CVE-2026-93273","ts":1792325022967,"field":"cvss","old":null,"new":"5.5"},{"seq":224222,"id":"CVE-2026-93273","ts":1792325022967,"field":"severity","old":"none","new":"medium"}]}