{"cve":"CVE-2026-90334","nvd":{"published":"2026-09-17T17:17:31.937","modified":"2026-10-19T09:19:27.497","status":"Received","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ntty: clear cdev pointer after cdev_add() failure\n\ntty_cdev_add() drops the cdev reference when cdev_add() fails, but\nleaves driver->cdevs[index] pointing to freed memory.\ntty_unregister_device() later passes that stale pointer to cdev_del(),\ncausing a use-after-free.\n\nClear the slot after dropping the reference.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/33a44333a9dfda044b0e233399b12ead7f8a90ae","https://git.kernel.org/stable/c/4f6bd79bb7e55095f09bec9b4eb6c09df1306116","https://git.kernel.org/stable/c/5c5a795bf6248fe96f96dd9fd79d66bbb4a92077","https://git.kernel.org/stable/c/6645856f0df3aeecd45519cb611415b4b89c2223","https://git.kernel.org/stable/c/a83fcddf3c75d004f12aa13555bb73da19fb75a9"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:55:23.253742848+00:00"},"epss":{"cve":"CVE-2026-90334","score":0.00216,"percentile":0.11956,"date":"2026-10-25"},"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."]}