GHSA-F775-WJ9M-J2C6
Vulnerability from github – Published: 2026-09-24 18:31 – Updated: 2026-09-24 18:31In the Linux kernel, the following vulnerability has been resolved:
regulator: tps6594: Fix device node reference leaks in multiphase loop
In tps6594_regulator_probe(), the multi-phase configuration loop calls of_find_node_by_name() to find buck nodes by name, and of_get_parent() twice to navigate to the PMIC parent node. None of the acquired node references (np, intermediate parent, np_pmic_parent) are ever released via of_node_put(), causing a reference leak on every loop iteration.
Additionally, of_find_node_by_name() can return NULL, but the result was immediately passed to of_node_full_name() and of_get_parent() without a NULL check, which could lead to a NULL pointer dereference.
Fix this by: - Adding a NULL check for np after of_find_node_by_name() - Storing the intermediate parent node in a local variable np_parent - Calling of_node_put() on np, np_parent and np_pmic_parent at the end of each loop iteration
{
"affected": [],
"aliases": [
"CVE-2026-93273"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-24T16:17:24Z",
"severity": null
},
"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",
"id": "GHSA-f775-wj9m-j2c6",
"modified": "2026-09-24T18:31:25Z",
"published": "2026-09-24T18:31:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-93273"
},
{
"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"
}
],
"schema_version": "1.4.0",
"severity": []
}
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