CVE-2026-72328

Local crash via amdxdna lifetime race

Published Aug 15, 2026 · Updated Aug 15, 2026

Use-after-free in the Linux kernel 6.16 amdxdna accelerator driver allows local users to crash the system through a memory-map race. amdxdna_umap_release removes a blocking MMU interval notifier before deleting the object from abo->mem.umap_list, so concurrent aie2_populate_range processing can retain a reference after release begins. Exploitation requires local low-privileged access and concurrent use of the amdxdna path on a system with an affected AMD XDNA accelerator.

CVSS severity7.8
High
EPSS probability0.17%
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 the Linux kernel 6.16 amdxdna accelerator driver allows local users to crash the system through a memory-map race. amdxdna_umap_release removes a blocking MMU interval notifier before deleting the object from abo->mem.umap_list, so concurrent aie2_populate_range processing can retain a reference after release begins. Exploitation requires local low-privileged access and concurrent use of the amdxdna path on a system with an affected AMD XDNA accelerator.

The record

CVE
CVE-2026-72328
Published
Aug 15, 2026
Updated
Aug 15, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-825, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 15, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=6.16
  2. Affected versionversion=e486147c912f653ef4b60a6c7dbd4168a4c56a9f <14f172eff9c19f8043a9858845f33cd034f3a41e
  3. Affected versionversion=e486147c912f653ef4b60a6c7dbd4168a4c56a9f <267809e2c56fbea486f7250c8a4acddcc3c54dc5
  4. Affected versionversion=e486147c912f653ef4b60a6c7dbd4168a4c56a9f <91e8109ecffb925b6202d2737384df285b195bfb

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.16; version=e486147c912f653ef4b60a6c7dbd4168a4c56a9f <14f172eff9c19f8043a9858845f33cd034f3a41e; version=e486147c912f653ef4b60a6c7dbd4168a4c56a9f <267809e2c56fbea486f7250c8a4acddcc3c54dc5; version=e486147c912f653ef4b60a6c7dbd4168a4c56a9f <91e8109ecffb925b6202d2737384df285b195bfb

Published CVSS scores

5.5Red HatCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
7.8cve.orgCVSS:3.1/AV:L/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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 exploitUnconfirmed

Weakness, pattern, technique

CWE-825Expired Pointer Dereference
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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