CVE-2022-28348

Kernel code execution via alias-size overflow

Published May 19, 2022 · Updated Aug 3, 2024

Use-after-free in Arm Mali GPU Kernel Driver allows local users to execute kernel code through crafted GPU memory alias operations. The kbase_mem_alias method multiplies user-controlled nents and stride without preventing 64-bit overflow, creating an undersized alias region whose page-table mappings overlap another region. App-domain access to the driver is sufficient; freeing an aliased backing page leaves a live GPU mapping that permits arbitrary kernel-memory access.

CVSS severity9.8
Critical
EPSS probability1.40%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use-after-free in Arm Mali GPU Kernel Driver allows local users to execute kernel code through crafted GPU memory alias operations. The kbase_mem_alias method multiplies user-controlled nents and stride without preventing 64-bit overflow, creating an undersized alias region whose page-table mappings overlap another region. App-domain access to the driver is sufficient; freeing an aliased backing page leaves a live GPU mapping that permits arbitrary kernel-memory access.

The record

CVE
CVE-2022-28348
Published
May 19, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-416, T1068
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 19, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
10.0NIST NVDAV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-416Use After Free
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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