CVE-2022-46395Public exploit

Kernel code execution via imported-memory unmap race

Published Mar 6, 2023 · Updated Nov 27, 2024

Use-after-free in Arm Mali GPU Kernel Driver allows local users to gain kernel code execution through crafted GPU operations. A sticky-resource unmap ioctl can drop the last backing-page reference while a soft job retains a mapping, so its later write targets freed memory. An untrusted Android app can win the race without user interaction and reuse the page to read and write kernel memory, disable SELinux, and gain root.

CVSS severity8.8
High
EPSS probability2.70%
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 gain kernel code execution through crafted GPU operations. A sticky-resource unmap ioctl can drop the last backing-page reference while a soft job retains a mapping, so its later write targets freed memory. An untrusted Android app can win the race without user interaction and reuse the page to read and write kernel memory, disable SELinux, and gain root.

The record

CVE
CVE-2022-46395
Published
Mar 6, 2023
Updated
Nov 27, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-416, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 6, 2023CVE publishedPublication date reported by the CVE source.
  2. Nov 27, 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 privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-416Use After Free
T1068Exploitation for Privilege Escalation

Public exploit references

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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