Security Advisory

CVE-2026-74675

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-08-22 15:32:44

Last updated 2026-08-22 15:32:44

Assigner Linux

CVSS score not scored

State PUBLISHED

Description

In the Linux kernel, the following vulnerability has been resolved: vt: stabilize tty reference in kbd_keycode with tty_port_tty_get kbd_keycode() reads vc->port.tty without acquiring a tty reference, racing against con_shutdown() which clears port.tty under a different lock. Use tty_port_tty_get()/tty_kref_put() to hold a proper reference for the duration the tty pointer is needed.

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