{"id":"CVE-2026-90334","published":"2026-09-17T17:17:31.937","lastModified":"2026-09-17T17:17:31.937","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.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/33a44333a9dfda044b0e233399b12ead7f8a90ae","tags":[]},{"url":"https://git.kernel.org/stable/c/4f6bd79bb7e55095f09bec9b4eb6c09df1306116","tags":[]},{"url":"https://git.kernel.org/stable/c/5c5a795bf6248fe96f96dd9fd79d66bbb4a92077","tags":[]},{"url":"https://git.kernel.org/stable/c/6645856f0df3aeecd45519cb611415b4b89c2223","tags":[]},{"url":"https://git.kernel.org/stable/c/a83fcddf3c75d004f12aa13555bb73da19fb75a9","tags":[]},{"url":"https://git.kernel.org/stable/c/d331c63570af61ef7aaf516b64a8d6f47518a3a4","tags":[]},{"url":"https://git.kernel.org/stable/c/e9e64dd02fd68776afda00777591eca0c3984285","tags":[]},{"url":"https://git.kernel.org/stable/c/fb1de260033c215dba438973d82b48562bdc86bb","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}