CVE-2026-90335: Linux

EPSS: 0.2% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: tty: skip cdev_del() when no cdev is registered TTY device registration can fail before a cdev is allocated. Serial core keeps the port so setserial can still use it, and later removal passes the NULL cdev slot to cdev_del(), causing a NULL-pointer dereference. Only delete the cdev when the slot is not NULL.

Affected products

• Linux Linux: from 4.3, before 7.2.6 (fixed in 7.2.6)

Published 2026-09-17. Last modified 2026-09-17.