Описание
In the Linux kernel, the following vulnerability has been resolved:
drm/vmwgfx: Fix KMS with 3D on HW version 10
HW version 10 does not have GB Surfaces so there is no backing buffer for
surface backed FBs. This would result in a nullptr dereference and crash
the driver causing a black screen.
A NULL pointer dereference vulnerability was found in the Linux kernel's VMware graphics (vmwgfx) driver. On VMware hardware version 10, which lacks GB Surfaces support, attempting to use 3D acceleration with KMS (Kernel Mode Setting) causes the driver to dereference a NULL backing buffer pointer for surface-backed framebuffers. This results in a kernel crash and black screen.
Отчет
This vulnerability specifically affects VMware virtual machines running hardware version 10 with 3D acceleration enabled. The crash occurs when the DRM subsystem attempts to access framebuffer surfaces that don't have backing storage on this hardware version. Newer VMware hardware versions are not affected as they support GB Surfaces.
Меры по смягчению последствий
To mitigate this issue, disable 3D acceleration in VMware virtual machine settings when using hardware version 10, or upgrade to a newer VMware hardware version that supports GB Surfaces.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 10 | kernel | Affected | ||
| Red Hat Enterprise Linux 6 | kernel | Out of support scope | ||
| Red Hat Enterprise Linux 7 | kernel | Not affected | ||
| Red Hat Enterprise Linux 7 | kernel-rt | Not affected | ||
| Red Hat Enterprise Linux 8 | kernel | Not affected | ||
| Red Hat Enterprise Linux 8 | kernel-rt | Not affected | ||
| Red Hat Enterprise Linux 9 | kernel | Affected | ||
| Red Hat Enterprise Linux 9 | kernel-rt | Affected |
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Дополнительная информация
Статус:
5.5 Medium
CVSS3
Связанные уязвимости
In the Linux kernel, the following vulnerability has been resolved: drm/vmwgfx: Fix KMS with 3D on HW version 10 HW version 10 does not have GB Surfaces so there is no backing buffer for surface backed FBs. This would result in a nullptr dereference and crash the driver causing a black screen.
In the Linux kernel, the following vulnerability has been resolved: drm/vmwgfx: Fix KMS with 3D on HW version 10 HW version 10 does not have GB Surfaces so there is no backing buffer for surface backed FBs. This would result in a nullptr dereference and crash the driver causing a black screen.
In the Linux kernel, the following vulnerability has been resolved: d ...
In the Linux kernel, the following vulnerability has been resolved: drm/vmwgfx: Fix KMS with 3D on HW version 10 HW version 10 does not have GB Surfaces so there is no backing buffer for surface backed FBs. This would result in a nullptr dereference and crash the driver causing a black screen.
Уязвимость функции vmw_kms_fb_create() модуля drivers/gpu/drm/vmwgfx/vmwgfx_kms.c драйвера инфраструктуры прямого рендеринга (DRI) ядра операционной системы Linux, позволяющая нарушителю вызвать отказ в обслуживании
5.5 Medium
CVSS3