title: Mali GPU Kernel Driver allows improper GPU processing operations
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.
problem types: CWE-416 Use After Free
affected:
{
defaultStatus: unaffected
product: Bifrost GPU Kernel Driver
vendor: Arm Ltd
versions:
changes: [at: r46p0, status: unaffected], lessThanOrEqual: r45p0, status: affected, version: r44p0, versionType: patch
}
{
defaultStatus: unaffected
product: Valhall GPU Kernel Driver
vendor: Arm Ltd
versions:
changes: [at: r46p0, status: unaffected], lessThanOrEqual: r45p0, status: affected, version: r44p0, versionType: patch
}
{
defaultStatus: unaffected
product: Arm 5th Gen GPU Architecture Kernel  Driver
vendor: Arm Ltd
versions:
changes: [at: r46p0, status: unaffected], lessThanOrEqual: r45p0, status: affected, version: r44p0, versionType: patch
}
solutions: This issue is fixed in Bifrost, Valhall, and Arm 5th Gen GPU Architecture Kernel Driver r46p0. Users are recommended to upgrade if they are impacted by this issue.