VYPR
Unrated severityNVD Advisory· Published Sep 17, 2026

CVE-2026-90334

CVE-2026-90334

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.

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Affected products

1

Patches

Vulnerability mechanics

References

8

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CVE-2026-90334 · VYPR