CVE-2026-53104

Service interruption via mt76 page-pool leak

Published Jun 24, 2026 · Updated Jun 24, 2026

Memory leak in the mt76 Wi-Fi driver in Linux Kernel 6.8 and later allows local users to exhaust memory by unloading the module. The mt76_dma_cleanup path fails to destroy every receive queue's page_pool and fails to return WED RRO pages when WED is disabled. Triggering the leak requires privileges to unload the mt76 module; repeated unloads can deplete kernel memory and interrupt service.

CVSS severity5.5
Medium
EPSS probability0.12%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory leak in the mt76 Wi-Fi driver in Linux Kernel 6.8 and later allows local users to exhaust memory by unloading the module. The mt76_dma_cleanup path fails to destroy every receive queue's page_pool and fails to return WED RRO pages when WED is disabled. Triggering the leak requires privileges to unload the mt76 module; repeated unloads can deplete kernel memory and interrupt service.

The record

CVE
CVE-2026-53104
Published
Jun 24, 2026
Updated
Jun 24, 2026
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
CWE-401, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 24, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 24, 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=6.8
  2. Affected versionversion=950d0abb5cd94f2b0710c5c42ac4398c91a7ff22 <4b7c92fd8b8700fac387ff43c6f6e0c4e05ec93f
  3. Affected versionversion=950d0abb5cd94f2b0710c5c42ac4398c91a7ff22 <6b470f36616e3448d44b0ef4b1de2a3e3a31b5be
  4. Affected versionversion=950d0abb5cd94f2b0710c5c42ac4398c91a7ff22 <dcbc13d19bef3326c72f324b10f5a3e5fc4d71de

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linux Kernelversion=6.8; version=950d0abb5cd94f2b0710c5c42ac4398c91a7ff22 <4b7c92fd8b8700fac387ff43c6f6e0c4e05ec93f; version=950d0abb5cd94f2b0710c5c42ac4398c91a7ff22 <6b470f36616e3448d44b0ef4b1de2a3e3a31b5be; version=950d0abb5cd94f2b0710c5c42ac4398c91a7ff22 <dcbc13d19bef3326c72f324b10f5a3e5fc4d71de

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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 exploitUnconfirmed

Weakness, pattern, technique

CWE-401Missing Release of Memory after Effective Lifetime
T1499Endpoint Denial of Service

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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