CVE Vulnerabilities


Missing Release of Memory after Effective Lifetime

Published: Apr 06, 2023 | Modified: Apr 21, 2023
CVSS 3.x
CVSS 2.x

Memory leak vulnerability in Mali GPU Kernel Driver in Midgard GPU Kernel Driver all versions from r6p0 - r32p0, Bifrost GPU Kernel Driver all versions from r0p0 - r42p0, Valhall GPU Kernel Driver all versions from r19p0 - r42p0, and Avalon GPU Kernel Driver all versions from r41p0 - r42p0 allows a non-privileged user to make valid GPU processing operations that expose sensitive kernel metadata.


The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory.

Affected Software

Name Vendor Start Version End Version
Avalon_gpu_kernel_driver Arm r41p0 (including) r43p0 (excluding)
Bifrost_gpu_kernel_driver Arm r0p0 (including) r43p0 (excluding)
Midgard Arm r6p0 (including) r32p0 (including)
Valhall_gpu_kernel_driver Arm r19p0 (including) r43p0 (excluding)

Potential Mitigations

  • Choose a language or tool that provides automatic memory management, or makes manual memory management less error-prone.
  • For example, glibc in Linux provides protection against free of invalid pointers.
  • When using Xcode to target OS X or iOS, enable automatic reference counting (ARC) [REF-391].
  • To help correctly and consistently manage memory when programming in C++, consider using a smart pointer class such as std::auto_ptr (defined by ISO/IEC ISO/IEC 14882:2003), std::shared_ptr and std::unique_ptr (specified by an upcoming revision of the C++ standard, informally referred to as C++ 1x), or equivalent solutions such as Boost.