kernel: drm/i915: Fix potential UAF in TTM object purge

A flaw was found in the Linux kernel's Intel i915 graphics driver drm/i915. This use-after-free UAF vulnerability occurs during the TTM object purge operation. An attacker could potentially exploit this to cause a system crash, leading to a denial of service...

kernel: drm/i915: Fix potential UAF in TTM object purge

A flaw was found in the Linux kernel's Intel i915 graphics driver drm/i915. This use-after-free UAF vulnerability occurs during the TTM object purge operation. An attacker could potentially exploit this to cause a system crash, leading to a denial of service...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-100750)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-100750 advisory. In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: fix zero-size GDS range init on RDNA4 RDNA4 GFX 12 hardware removes the GDS, GWS, and...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-099738)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-099738 advisory. In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: fix zero-size GDS range init on RDNA4 RDNA4 GFX 12 hardware removes the GDS, GWS, and...

EUVD-2026-59258

In the Linux kernel, the following vulnerability has been resolved: drm/xe: fix NPD in bomeminfo When a buffer object is purged, its ttm.resource is set to NULL via the TTM pipeline gutting flow. However, the BO remains in the client's object list until userspace explicitly closes the GEM handle...

SUSE CVE-2026-68266

In the Linux kernel, the following vulnerability has been resolved: drm/xe: Hold a dma-buf reference for imported BOs An imported dma-buf BO is created as a ttmbotypesg BO whose reservation object is the exporter's dmabuf-resv. The importer, however, only takes a dma-buf reference after a...

CVE-2026-68239

A flaw was found in the Linux kernel's Direct Rendering Manager drm/ttm component. A local attacker could trigger a null pointer dereference by manipulating memory pages in ttmpoolbackup. This vulnerability occurs because the system attempts to process or free memory pages that are either empty...

DEBIAN-CVE-2026-68239

In the Linux kernel, the following vulnerability has been resolved: drm/ttm: Account for NULL and handle pages in ttmpoolbackup Pages in ttmpoolbackup can be NULL or backup handles ttmbackuppageptrishandle, neither of which can be passed to setpagesarraywb or freed. Add a dedicated WB pass before...

CVE-2026-68239

In the Linux kernel, the following vulnerability has been resolved: drm/ttm: Account for NULL and handle pages in ttmpoolbackup Pages in ttmpoolbackup can be NULL or backup handles ttmbackuppageptrishandle, neither of which can be passed to setpagesarraywb or freed. Add a dedicated WB pass before...

UBUNTU-CVE-2026-68266

In the Linux kernel, the following vulnerability has been resolved: drm/xe: Hold a dma-buf reference for imported BOs An imported dma-buf BO is created as a ttmbotypesg BO whose reservation object is the exporter's dmabuf-resv. The importer, however, only takes a dma-buf reference after a...

CVE-2026-68234

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: fix bo-pin leaking in amdgpubocreatereserved amdgpubocreatereserved only allocates a new BO when boptr struct amdgpubo boptr as input parameter is NULL, it simply skips creation when boptr is non-NULL. But it...

UBUNTU-CVE-2026-68234

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: fix bo-pin leaking in amdgpubocreatereserved amdgpubocreatereserved only allocates a new BO when boptr struct amdgpubo boptr as input parameter is NULL, it simply skips creation when boptr is non-NULL. But it...

CVE-2026-68239

In the Linux kernel, the following vulnerability has been resolved: drm/ttm: Account for NULL and handle pages in ttmpoolbackup Pages in ttmpoolbackup can be NULL or backup handles ttmbackuppageptrishandle, neither of which can be passed to setpagesarraywb or freed. Add a dedicated WB pass before...

UBUNTU-CVE-2026-68239

In the Linux kernel, the following vulnerability has been resolved: drm/ttm: Account for NULL and handle pages in ttmpoolbackup Pages in ttmpoolbackup can be NULL or backup handles ttmbackuppageptrishandle, neither of which can be passed to setpagesarraywb or freed. Add a dedicated WB pass before...

CVE-2026-68266

In the Linux kernel, the following vulnerability has been resolved: drm/xe: Hold a dma-buf reference for imported BOs An imported dma-buf BO is created as a ttmbotypesg BO whose reservation object is the exporter's dmabuf-resv. The importer, however, only takes a dma-buf reference after a...

CVE-2026-68266 drm/xe: Hold a dma-buf reference for imported BOs

In the Linux kernel, the following vulnerability has been resolved: drm/xe: Hold a dma-buf reference for imported BOs An imported dma-buf BO is created as a ttmbotypesg BO whose reservation object is the exporter's dmabuf-resv. The importer, however, only takes a dma-buf reference after a...

CVE-2026-68266

CVE-2026-68266 is a Linux kernel vulnerability in the drm/xe path with imported dma-buf BOs. The issue arises when an imported dma-buf BO is created as a ttm_bo_type_sg object whose reservation (exporter’s resv) is not kept alive until dma_buf_dynamic_attach completes. If the exporter is freed wh...

CVE-2026-68239 drm/ttm: Account for NULL and handle pages in ttm_pool_backup

In the Linux kernel, the following vulnerability has been resolved: drm/ttm: Account for NULL and handle pages in ttmpoolbackup Pages in ttmpoolbackup can be NULL or backup handles ttmbackuppageptrishandle, neither of which can be passed to setpagesarraywb or freed. Add a dedicated WB pass before...

CVE-2026-68239 drm/ttm: Account for NULL and handle pages in ttm_pool_backup

In the Linux kernel, the following vulnerability has been resolved: drm/ttm: Account for NULL and handle pages in ttmpoolbackup Pages in ttmpoolbackup can be NULL or backup handles ttmbackuppageptrishandle, neither of which can be passed to setpagesarraywb or freed. Add a dedicated WB pass before...

CVE-2026-68239

CVE-2026-68239 affects the Linux kernel DRM TTM code, specifically the ttm_pool_backup path. The issue arises because ttm_pool_backup could encounter NULL or backup handle entries (ttm_backup_page_ptr_is_handle()) which were not safely guarded for set_pages_array_wb() and could be freed erroneous...