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5.1

Arm GPU drivers could let local user read freed memory

CVE-2023-6363 · published 2 years ago
Summary

The Valhall and 5th‑Gen GPU kernel drivers from Arm allow a regular user on the computer to manipulate GPU memory in a way that can expose data that has already been released. This could let an attacker view or tamper with information that should be protected. Update the drivers to the latest version released by Arm or apply any patches provided by your system vendor.

What to do
  • Update google :unknown: to version SoCVersion:2024-05-05.
  • Update arm 5th_gen_gpu_architecture_kernel_driver to version r48p0 or later.
  • Update arm valhall_gpu_kernel_driver to version r48p0 or later.
Affected software
Ecosystem VendorProductAffected versions
Android google :unknown: >= SoCVersion:0, < SoCVersion:2024-05-05
Fix: upgrade to SoCVersion:2024-05-05
– arm 5th_gen_gpu_architecture_kernel_driver >= r41p0, < r48p0
cpe:2.3:a:arm:5th_gen_gpu_architecture_kernel_driver:*:*:*:*:*:*:*:*
– arm valhall_gpu_kernel_driver >= r41p0, < r48p0
cpe:2.3:a:arm:valhall_gpu_kernel_driver:*:*:*:*:*:*:*:*
Original advisory text
ASB-A-303632069
Use After Free vulnerability in Arm Ltd Valhall GPU Kernel Driver, Arm Ltd Arm 5th Gen GPU Architecture Kernel Driver allows a local non-privileged user to make improper GPU memory processing operations. If the system’s memory is carefully prepared by the user, then this in turn could give them access to already freed memory.
This issue affects Valhall GPU Kernel Driver: from r41p0 through r47p0; Arm 5th Gen GPU Architecture Kernel Driver: from r41p0 through r47p0.

References
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker partial control
Severity
5.1 Medium
Exploitation
<1% chance of attack within 30 days
Type
CWE-416Use After Free
Timeline
Published1 May 2024
Updated26 Oct 2026
First seen10 Sep 2026
Sources
ASB-A-303632069 · OSV
CVE-2023-6363 · NVD
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