CVE-2023-5427: arm ltd arm 5th gen gpu architecture kernel driver Use After Free

Vulnerability summary

CVE-2023-5427 is a high (CVSS 7.8) Use After Free vulnerability in arm ltd arm 5th gen gpu architecture kernel driver. EPSS estimates a 0.33% chance of exploitation in the next 30 days, higher than 25.3% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 01-12-2023
   PublishedVulnerability first disclosed.
2. 25-02-2026
   Last modifiedVulnerability information updated.

Description

Use After Free vulnerability in Arm Ltd Bifrost GPU Kernel Driver, 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 processing operations to gain access to already freed memory.This issue affects Bifrost GPU Kernel Driver: from r44p0 through r45p0; Valhall GPU Kernel Driver: from r44p0 through r45p0; Arm 5th Gen GPU Architecture Kernel Driver: from r44p0 through r45p0.

• CWE-416Use After FreeThe product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.