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...

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...

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-2026-68234

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-2026-68239

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-2026-68266 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...

CVE-2026-68234 drm/amdgpu: fix bo->pin leaking in amdgpu_bo_create_reserved

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...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: drm/amdgpu: Fixed NULL pointer dereferencing in the VRAM logic for APU devices Previously, APU platforms and other scenarios with uninitialized VRAM managers caused NULL pointer dereferencing in ttmresourcemanagerusage. The ro...

CVE-2026-63884

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...

SUSE CVE-2026-63884

In the Linux kernel, the following vulnerability has been resolved: drm/i915: Fix potential UAF in TTM object purge TLDR: The bo-ttm object might be changed by calling ttmbovalidate, move casting it to an i915tt object later to actually get the right pointer. A user reported hitting the following...

EUVD-2026-45769

In the Linux kernel, the following vulnerability has been resolved: drm/i915: Fix potential UAF in TTM object purge TLDR: The bo-ttm object might be changed by calling ttmbovalidate, move casting it to an i915tt object later to actually get the right pointer. A user reported hitting the following...

CVE-2026-63884

CVE-2026-63884 affects the Linux kernel i915 driver with a UAF risk during TTM object purge. The issue arises when a bo->ttm object is mutated by ttm_bo_validate() and then cast to an i915_tt pointer, leading to a dereference after the object’s placement/caching policy may be changed (eviction...

CVE-2026-63884 drm/i915: Fix potential UAF in TTM object purge

In the Linux kernel, the following vulnerability has been resolved: drm/i915: Fix potential UAF in TTM object purge TLDR: The bo-ttm object might be changed by calling ttmbovalidate, move casting it to an i915tt object later to actually get the right pointer. A user reported hitting the following...