CVE-2026-72258

Availability loss via unreleased AFE reserved memory

Published Aug 15, 2026 · Updated Aug 15, 2026

Resource leak in affected Linux kernel MT8183 AFE driver builds allows local users to reduce system availability via driver cleanup paths. The mt8183_afe_pcm_dev_probe() path assigns reserved memory with of_reserved_mem_device_init() but does not release that assignment when probing later fails or the driver is removed. Reaching the flaw requires an MT8183 AFE device and local access able to trigger probe failure or driver removal; public sources document no crash or broader impact.

CVSS severity3.3
Low
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource leak in affected Linux kernel MT8183 AFE driver builds allows local users to reduce system availability via driver cleanup paths. The mt8183_afe_pcm_dev_probe() path assigns reserved memory with of_reserved_mem_device_init() but does not release that assignment when probing later fails or the driver is removed. Reaching the flaw requires an MT8183 AFE device and local access able to trigger probe failure or driver removal; public sources document no crash or broader impact.

The record

CVE
CVE-2026-72258
Published
Aug 15, 2026
Updated
Aug 15, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499
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=3b13b5a4f29e50bbc3c464823cf8c94b93a16367 <e2d05ab62614162797fee28925279d9e8c2f200a
  2. Affected versionversion=40bff79f167ff700cf1f203b1ad54b389d0e7189
  3. Affected versionversion=6.12.42 <6.12.97
  4. Affected versionversion=6.15.10 <6.16
  5. Affected versionversion=6.16.1 <6.17
  6. Affected versionversion=6.17
  7. Affected versionversion=6.6.102 <6.6.145
  8. Affected versionversion=aa771d2928fedd7fb10aa373601eeee0ed8ccfae <48b6c39883637b444c2f976e7b8ca964b1889561
  9. Affected versionversion=c2ab521120eb83103bc5927bb7b7aa84043f495f
  10. Affected versionversion=ec4a10ca4a68ec97f12f4d17d7abb74db34987db <03009465312ca35137f84cf84c95686137608deb
  11. Affected versionversion=ec4a10ca4a68ec97f12f4d17d7abb74db34987db <bee65e00c0924ebecf97718d95dcf4a05ee36471
  12. Affected versionversion=ec4a10ca4a68ec97f12f4d17d7abb74db34987db <e42d8322b67f21493a832ec338aad1c93bd01ea7

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=3b13b5a4f29e50bbc3c464823cf8c94b93a16367 <e2d05ab62614162797fee28925279d9e8c2f200a; version=40bff79f167ff700cf1f203b1ad54b389d0e7189; version=6.12.42 <6.12.97; version=6.15.10 <6.16; version=6.16.1 <6.17; version=6.17; version=6.6.102 <6.6.145; version=aa771d2928fedd7fb10aa373601eeee0ed8ccfae <48b6c39883637b444c2f976e7b8ca964b1889561; version=c2ab521120eb83103bc5927bb7b7aa84043f495f; version=ec4a10ca4a68ec97f12f4d17d7abb74db34987db <03009465312ca35137f84cf84c95686137608deb; version=ec4a10ca4a68ec97f12f4d17d7abb74db34987db <bee65e00c0924ebecf97718d95dcf4a05ee36471; version=ec4a10ca4a68ec97f12f4d17d7abb74db34987db <e42d8322b67f21493a832ec338aad1c93bd01ea7

Published CVSS scores

3.3Amazon LinuxCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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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

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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