CVE-2026-90334
Received
Received - Intake
BaseFortify
Vulnerability report for CVE-2026-90334, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-09-17
Last updated on: 2026-09-17
Assigner: kernel.org
Description
Description
In the Linux kernel, the following vulnerability has been resolved:
tty: clear cdev pointer after cdev_add() failure
tty_cdev_add() drops the cdev reference when cdev_add() fails, but
leaves driver->cdevs[index] pointing to freed memory.
tty_unregister_device() later passes that stale pointer to cdev_del(),
causing a use-after-free.
Clear the slot after dropping the reference.
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| Linux | Linux | c1a752ba2d6b8a52879c7ab637cff38359ea9827 |
| Linux | Linux | c1a752ba2d6b8a52879c7ab637cff38359ea9827 |
| Linux | Linux | c1a752ba2d6b8a52879c7ab637cff38359ea9827 |
| Linux | Linux | c1a752ba2d6b8a52879c7ab637cff38359ea9827 |
| Linux | Linux | c1a752ba2d6b8a52879c7ab637cff38359ea9827 |
| Linux | Linux | c1a752ba2d6b8a52879c7ab637cff38359ea9827 |
| Linux | Linux | c1a752ba2d6b8a52879c7ab637cff38359ea9827 |
| Linux | Linux | c1a752ba2d6b8a52879c7ab637cff38359ea9827 |
| Linux | Linux | 4.3 |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-UNKNOWN |
