CVE-2023-53378
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-09-18

Last updated on: 2025-12-12

Assigner: kernel.org

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)
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Meta Information
Published
2025-09-18
Last Modified
2025-12-12
Generated
2026-05-07
AI Q&A
2025-09-18
EPSS Evaluated
2026-05-05
NVD
CVE-2023-53378
Affected Vendors & Products
Showing 6 associated CPEs
Vendor Product Version / Range
linux linux_kernel From 6.0 (inc) to 6.1.23 (exc)
linux linux_kernel From 6.2 (inc) to 6.2.10 (exc)
linux linux_kernel 6.3
linux linux_kernel 6.3
linux linux_kernel 6.3
linux linux_kernel 6.3
Helpful Resources
Exploitability
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CWE ID Description
CWE-NVD-CWE-noinfo
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AI Powered Q&A
Can you explain this vulnerability to me?

This vulnerability in the Linux kernel's i915 graphics driver involves improper handling of the Display Plane Translation (DPT) buffer object (BO). The system does not treat the DPT BO as a framebuffer, which allows the memory shrinker to evict the DPT BO while the actual framebuffer BO remains bound. This leads to a kernel crash (oops) during hibernation when the system tries to rewrite page table entries (PTEs) inside the already evicted DPT object.


How can this vulnerability impact me? :

This vulnerability can cause immediate system crashes (kernel oops) during hibernation, potentially leading to data loss or system instability. It may also cause display faults under heavy memory pressure, affecting the reliability and usability of systems using the affected Linux kernel graphics driver.


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