Vulnerability 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)
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 6.0, < 6.1.23 |
References
- https://git.kernel.org/stable/c/3413881e1ecc3cba722a2e87ec099692eed5be28Patch
- https://git.kernel.org/stable/c/5390a02b4508416b9bee96674f141c68f89bafbcPatch
- https://git.kernel.org/stable/c/c781c107731fc09ce4330c8c636b8446d0f72aa4Patch
FAQ
What is CVE-2023-53378?
CVE-2023-53378 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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 fra...
How severe is CVE-2023-53378?
CVE-2023-53378 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-53378?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.