CVE-2026-80923

A flaw was found in the Linux kernel. When the ttyregisterdriver function fails, the global dbcttydriver pointer is not properly cleared. This can lead to a use-after-free vulnerability during module unload, where the system attempts to unregister an already freed driver, potentially causing syst...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: xhci: dbgtty: Fixed an issue where unregister was called again after module exit due to a failure in ttyregisterdriver. If ttyregisterdriver fails, it releases the reference, but fails to set dbcttydriver to NULL, causing...

SUSE CVE-2026-80923

In the Linux kernel, the following vulnerability has been resolved: xhci: dbgtty: Fix unregister on ttyregisterdriver failure If ttyregisterdriver fails, it drops the reference, but fails to set the global dbcttydriver to NULL, causing the unregister to be called again when module exits. On modul...

AZL-99954 CVE-2026-80923 affecting package kernel for versions less than 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: xhci: dbgtty: Fix unregister on ttyregisterdriver failure If ttyregisterdriver fails, it drops the reference, but fails to set the global dbcttydriver to NULL, causing the unregister to be called again when module exits. On modul...

CVE-2026-80923

CVE-2026-80923 is a use-after-free in the Linux kernel's xhci dbgtty driver. When tty_register_driver() fails during module initialization, the driver reference is dropped but the global dbc_tty_driver pointer is left dangling (not set to NULL). Upon module unload, dbc_tty_exit() sees the non-NUL...

EUVD-2026-75100

In the Linux kernel, the following vulnerability has been resolved: xhci: dbgtty: Fix unregister on ttyregisterdriver failure If ttyregisterdriver fails, it drops the reference, but fails to set the global dbcttydriver to NULL, causing the unregister to be called again when module exits. On modul...

CVE-2026-80923 xhci: dbgtty: Fix unregister on tty_register_driver() failure

In the Linux kernel, the following vulnerability has been resolved: xhci: dbgtty: Fix unregister on ttyregisterdriver failure If ttyregisterdriver fails, it drops the reference, but fails to set the global dbcttydriver to NULL, causing the unregister to be called again when module exits. On modul...

CVE-2026-80923: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: xhci: dbgtty: Fix unregister on ttyregisterdriver failure If ttyregisterdriver fails, it drops the reference, but fails to set the global dbcttydriver to NULL, causing the unregister to be called again when module exits. On modul...

Linux Distros Unpatched Vulnerability : CVE-2026-80923

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - xhci: dbgtty: Fix unregister on ttyregisterdriver failure If ttyregisterdriver fails, it drops the reference, but fails to set the global dbcttydriver to NULL,...