OESA-2026-3701 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: In the Linux kernel, the following vulnerability has been resolved: staging: greybus: uart: fix tty use after free User space can hold a tty open indefinitely and tty drivers must not release the underlying structures until the...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-989627)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989627 advisory. In the Linux kernel, the following vulnerability has been resolved: staging: greybus: uart: fix tty use after free User space can hold a tty open indefinitely and tt...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-986971)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-986971 advisory. In the Linux kernel, the following vulnerability has been resolved: staging: greybus: uart: fix tty use after free User space can hold a tty open indefinitely and tt...

Greybus UART Probe DoS

Vulnerability of the gbuartprobe function in the drivers/staging/greybus/uart.c module – The drivers for Greybus devices in the Linux operating system rely on the re-use of previously freed memory. Exploiting this vulnerability could allow an attacker to cause a service failure...

DEBIAN-CVE-2021-47358

In the Linux kernel, the following vulnerability has been resolved: staging: greybus: uart: fix tty use after free User space can hold a tty open indefinitely and tty drivers must not release the underlying structures until the last user is gone. Switch to using the tty-port reference counter to...

CVE-2021-47358

In the Linux kernel, the following vulnerability has been resolved: staging: greybus: uart: fix tty use after free User space can hold a tty open indefinitely and tty drivers must not release the underlying structures until the last user is gone. Switch to using the tty-port reference counter to...

UBUNTU-CVE-2021-47358

In the Linux kernel, the following vulnerability has been resolved: staging: greybus: uart: fix tty use after free User space can hold a tty open indefinitely and tty drivers must not release the underlying structures until the last user is gone. Switch to using the tty-port reference counter to...

PT-2021-26045

Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to v4.19.209 Description The issue is related to a use-after-free error in the greybus uart component. This could potentially lead to security vulnerabilities, although the actual impact and attack plausibility have...

PT-2021-30011

Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to v4.14.249 Description The issue is related to a use after free in the greybus uart component. It was introduced in version v4.9 and is fixed in Linux Kernel version v4.14.249. The actual impact and attack...

PT-2021-30040

Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to v4.19.209 Description The issue is related to a use-after-free error in the greybus uart component. This could potentially lead to security vulnerabilities, although the actual impact and attack plausibility have...

PT-2021-26237

Name of the Vulnerable Software and Affected Versions: Linux Kernel versions prior to v5.14.9 Description: The issue is related to a use-after-free error in the greybus uart component. This could potentially lead to security vulnerabilities, although the actual impact and attack plausibility have...

PT-2021-30232

Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to v5.14.9 Description The issue is related to a use after free error in the greybus uart component. This problem was introduced in version v4.9 and is fixed in Linux Kernel version v5.14.9. The actual impact and...

PT-2021-25989

Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to v4.9.285 Description The issue is related to a use after free error in the greybus uart component. This could potentially lead to security vulnerabilities, although the actual impact and attack plausibility have...

PT-2021-26016

Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to v4.14.249 Description The issue is related to a use after free error in the greybus uart component. This problem was introduced in version v4.9 and is fixed in version v4.14.249. The actual impact and attack...

PT-2021-30079

Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to v5.4.150 Description The issue is related to a use after free error in the greybus uart component. This could potentially lead to security vulnerabilities, although the actual impact and attack plausibility have...

PT-2021-30139

Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to v5.10.70 Description The issue is related to a use after free error in the greybus uart component. This could potentially lead to security vulnerabilities, although the actual impact and attack plausibility have...

PT-2021-26084

Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to v5.4.150 Description The issue is related to a use after free error in the greybus uart component. This could potentially lead to security vulnerabilities, although the actual impact and attack plausibility have...

PT-2021-29984

Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to v4.9.285 Description The issue is related to a use-after-free error in the greybus uart component. This could potentially lead to security vulnerabilities, although the actual impact and attack plausibility have...

PT-2021-26144

Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to v5.10.70 Description The issue is related to a use after free error in the greybus uart component. It was introduced in version v4.9 and fixed in version v5.10.70. The actual impact and attack plausibility have n...

PT-2024-11355

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The issue arises from the Linux kernel's greybus uart component, where user space can hold a tty open indefinitely. Tty drivers must not release underlying structures until the last user...