Unity Linux 20.1050a / 20.1060a / 20.1070a Security Update: kernel (UTSA-2025-391626)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-391626 advisory. In the Linux kernel, the following vulnerability has been resolved: USB: serial: quatech2: fix null-ptr-deref in qt2processreadurb This patch addresses a...

kernel: USB: serial: quatech2: fix null-ptr-deref in qt2_process_read_urb()

A flaw was found in the quatech2 module in the Linux kernel. An incorrect check for invalid port numbers can cause a NULL pointer dereference and result in a denial of service...

USB: serial: quatech2: fix null-ptr-deref in qt2_process_read_urb()

...

Vulnerability of the qt2_process_read_urb() function in the drivers/usb/serial/quatech2.c module – The driver for supporting USB devices of the Linux operating system, which allows a hacker to cause a service failure.

Vulnerability of the qt2processreadurb function in the drivers/usb/serial/quatech2.c module – The driver for supporting USB devices in Linux operating systems contains errors in its code. Exploiting this vulnerability could allow an attacker to cause a service failure...

SUSE CVE-2025-21689

In the Linux kernel, the following vulnerability has been resolved: USB: serial: quatech2: fix null-ptr-deref in qt2processreadurb This patch addresses a null-ptr-deref in qt2processreadurb due to an incorrect bounds check in the following: if newport serial-numports deverr&port-dev, "%s - port...

DEBIAN-CVE-2025-21689

In the Linux kernel, the following vulnerability has been resolved: USB: serial: quatech2: fix null-ptr-deref in qt2processreadurb This patch addresses a null-ptr-deref in qt2processreadurb due to an incorrect bounds check in the following: if newport serial-numports deverr&port-dev, "%s - port...

UBUNTU-CVE-2025-21689

In the Linux kernel, the following vulnerability has been resolved: USB: serial: quatech2: fix null-ptr-deref in qt2processreadurb This patch addresses a null-ptr-deref in qt2processreadurb due to an incorrect bounds check in the following: if newport serial-numports deverr&port-dev, "%s - port...

CVE-2025-21689 USB: serial: quatech2: fix null-ptr-deref in qt2_process_read_urb()

In the Linux kernel, the following vulnerability has been resolved: USB: serial: quatech2: fix null-ptr-deref in qt2processreadurb This patch addresses a null-ptr-deref in qt2processreadurb due to an incorrect bounds check in the following: if newport serial-numports deverr&port-dev, "%s - port...

CVE-2025-21689 USB: serial: quatech2: fix null-ptr-deref in qt2_process_read_urb()

In the Linux kernel, the following vulnerability has been resolved: USB: serial: quatech2: fix null-ptr-deref in qt2processreadurb This patch addresses a null-ptr-deref in qt2processreadurb due to an incorrect bounds check in the following: if newport serial-numports deverr&port-dev, "%s - port...

CVE-2025-21689

The CVE concerns Linux kernel USB: serial (quatech2) where qt2_process_read_urb() could dereference NULL due to an out-of-bounds access. The root cause was an incorrect bounds check using if (newport > serial->num_ports) which allowed newport to reach serial->num_ports and make port NULL...