In the Linux kernel, the following vulnerability has been resolved: drm/i915/dpt: Treat the DPT BO as a framebuffer Currently i915_gem_object_is_framebuffer() doesn't treat the BO containing the framebuffer's DPT as a framebuffer itself. This means eg. that the shrinker can evict the DPT BO while leaving the actual FB BO bound, when the DPT is allocated from regular shmem. That causes an immediate oops during hibernate as we try to rewrite the PTEs inside the already evicted DPT obj. TODO: presumably this might also be the reason for the DPT related display faults under heavy memory pressure, but I'm still not sure how that would happen as the object should be pinned by intel_dpt_pin() while in active use by the display engine... (cherry picked from commit 779cb5ba64ec7df80675a956c9022929514f517a)

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

Vendors Products
Linux
  • Linux Kernel

No data.

No data.

References
Link Providers
https://git.kernel.org/stable/c/3413881e1ecc3cba722a2e87ec099692eed5be28 cve-icon cve-icon
https://git.kernel.org/stable/c/5390a02b4508416b9bee96674f141c68f89bafbc cve-icon cve-icon
https://git.kernel.org/stable/c/c781c107731fc09ce4330c8c636b8446d0f72aa4 cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2025091856-CVE-2023-53378-3d98@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2023-53378 cve-icon
https://www.cve.org/CVERecord?id=CVE-2023-53378 cve-icon
History

Fri, 19 Sep 2025 09:45:00 +0000

Type Values Removed Values Added
First Time appeared Linux
Linux linux Kernel
Vendors & Products Linux
Linux linux Kernel

Fri, 19 Sep 2025 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Low

Thu, 18 Sep 2025 13:45:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: drm/i915/dpt: Treat the DPT BO as a framebuffer Currently i915_gem_object_is_framebuffer() doesn't treat the BO containing the framebuffer's DPT as a framebuffer itself. This means eg. that the shrinker can evict the DPT BO while leaving the actual FB BO bound, when the DPT is allocated from regular shmem. That causes an immediate oops during hibernate as we try to rewrite the PTEs inside the already evicted DPT obj. TODO: presumably this might also be the reason for the DPT related display faults under heavy memory pressure, but I'm still not sure how that would happen as the object should be pinned by intel_dpt_pin() while in active use by the display engine... (cherry picked from commit 779cb5ba64ec7df80675a956c9022929514f517a)
Title drm/i915/dpt: Treat the DPT BO as a framebuffer
References
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2025-09-18T13:33:23.905Z

Updated: 2025-09-18T13:33:23.905Z

Reserved: 2025-09-17T14:54:09.735Z

Link: CVE-2023-53378

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2025-09-18T14:15:40.710

Modified: 2025-09-18T14:15:40.710

Link: CVE-2023-53378

cve-icon Redhat

Severity : Low

Publid Date: 2025-09-18T00:00:00Z

Links: CVE-2023-53378 - Bugzilla