{"cve":"CVE-2026-45989","nvd":{"published":"2026-05-27T14:17:16.413","modified":"2026-06-17T10:52:51.500","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nof: unittest: fix use-after-free in testdrv_probe()\n\nThe function testdrv_probe() retrieves the device_node from the PCI\ndevice, applies an overlay, and then immediately calls of_node_put(dn).\nThis releases the reference held by the PCI core, potentially freeing\nthe node if the reference count drops to zero. Later, the same freed\npointer 'dn' is passed to of_platform_default_populate(), leading to a\nuse-after-free.\n\nThe reference to pdev->dev.of_node is owned by the device model and\nshould not be released by the driver. Remove the erroneous of_node_put()\nto prevent premature freeing.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8},"cwes":["CWE-416"],"references":["https://git.kernel.org/stable/c/07fd339b2c253205794bea5d9b4b7548a4546c56","https://git.kernel.org/stable/c/0ba03e06f037df704d9b032e36d417633e2326bc","https://git.kernel.org/stable/c/5b6122a67a295f8a08b7c18d908a1bd974dfaec8","https://git.kernel.org/stable/c/6b2023286d2c6ed3bf964fb92e34c9c14d42eb69","https://git.kernel.org/stable/c/d68347b07b9801791c9eaab8f772770b52b8cd5c"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T22:36:28.938604137+00:00"},"epss":{"cve":"CVE-2026-45989","score":0.00163,"percentile":0.05503,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}