CVE-2026-80525

System crashes via stale audio DMA assignments

Published Aug 26, 2026 · Updated Aug 26, 2026

Denial of service in Linux allows local users to crash systems during suspend and resume of Sound Open Firmware audio. The IPC4 topology path caches ipc_config_data for copier widgets, then reuses boot-time host and link DMA identifiers after streams receive new tags. A local user must exercise an affected SOF IPC4 audio path across suspend and resume; conflicting channels produce firmware errors and a system crash.

CVSS severity5.5
Medium
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

Denial of service in Linux allows local users to crash systems during suspend and resume of Sound Open Firmware audio. The IPC4 topology path caches ipc_config_data for copier widgets, then reuses boot-time host and link DMA identifiers after streams receive new tags. A local user must exercise an affected SOF IPC4 audio path across suspend and resume; conflicting channels produce firmware errors and a system crash.

The record

CVE
CVE-2026-80525
Published
Aug 26, 2026
Updated
Aug 26, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-367
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 26, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 26, 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=6.10
  2. Affected versionversion=e9c6b118de1afc1d32a4eb3bc9f3d114d4fe0f1a <0c0e418dbcf0582bf80d8dbfd9b306607c065992
  3. Affected versionversion=e9c6b118de1afc1d32a4eb3bc9f3d114d4fe0f1a <2a7d8fc0fd50e7a2020989d9840cabb74c0282e3
  4. Affected versionversion=e9c6b118de1afc1d32a4eb3bc9f3d114d4fe0f1a <574498e56024082a0da68474ad4526d250732411
  5. Affected versionversion=e9c6b118de1afc1d32a4eb3bc9f3d114d4fe0f1a <decb87e76716d11d846c9c055e309c8ff90d7656

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.10; version=e9c6b118de1afc1d32a4eb3bc9f3d114d4fe0f1a <0c0e418dbcf0582bf80d8dbfd9b306607c065992; version=e9c6b118de1afc1d32a4eb3bc9f3d114d4fe0f1a <2a7d8fc0fd50e7a2020989d9840cabb74c0282e3; version=e9c6b118de1afc1d32a4eb3bc9f3d114d4fe0f1a <574498e56024082a0da68474ad4526d250732411; version=e9c6b118de1afc1d32a4eb3bc9f3d114d4fe0f1a <decb87e76716d11d846c9c055e309c8ff90d7656

Published CVSS scores

5.5Amazon LinuxCVSS: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-367Time-of-check Time-of-use (TOCTOU) Race Condition

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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