CVE-2026-80581

Audio service interruption via aborted pipeline state update

Published Aug 26, 2026 · Updated Aug 27, 2026

Denial of service in the Linux kernel's SOF IPC4 PCM code allows local users to interrupt DSP audio after an IPC reply timeout. The sof_ipc4_trigger_pipelines function treats firmware-crash and IPC-timeout errors as fatal and exits before synchronizing local PAUSED or RESET pipeline state with the state already accepted by the DSP firmware. Low-privileged local access to an affected system using SOF IPC4 audio is required; the stale state prevents correct DSP audio operation on the next DSP boot.

CVSS severity5.5
Medium
EPSS probability0.16%
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 the Linux kernel's SOF IPC4 PCM code allows local users to interrupt DSP audio after an IPC reply timeout. The sof_ipc4_trigger_pipelines function treats firmware-crash and IPC-timeout errors as fatal and exits before synchronizing local PAUSED or RESET pipeline state with the state already accepted by the DSP firmware. Low-privileged local access to an affected system using SOF IPC4 audio is required; the stale state prevents correct DSP audio operation on the next DSP boot.

The record

CVE
CVE-2026-80581
Published
Aug 26, 2026
Updated
Aug 27, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-390, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 26, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 27, 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=3cac6eebea9b4bc5f041e157e45c76e212ad6759 <4931c09d83877dc350106bae745321c3f295129b
  2. Affected versionversion=6.6.23 <6.6.154
  3. Affected versionversion=6.7.11 <6.8
  4. Affected versionversion=6.8
  5. Affected versionversion=c40aad7c81e5fba34b70123ed7ce3397fa62a4d2 <17661c67b206612cb3ba65d5ae726cd2015d0a53
  6. Affected versionversion=c40aad7c81e5fba34b70123ed7ce3397fa62a4d2 <6b512a5330ef1a41db7aff4b80c4e952b8d52f17
  7. Affected versionversion=c40aad7c81e5fba34b70123ed7ce3397fa62a4d2 <f2435a46dfa1a5693cf2664afd022db66ee58121
  8. Affected versionversion=d153e8b154f9746ac969c85a4e6474760453647c

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=3cac6eebea9b4bc5f041e157e45c76e212ad6759 <4931c09d83877dc350106bae745321c3f295129b; version=6.6.23 <6.6.154; version=6.7.11 <6.8; version=6.8; version=c40aad7c81e5fba34b70123ed7ce3397fa62a4d2 <17661c67b206612cb3ba65d5ae726cd2015d0a53; version=c40aad7c81e5fba34b70123ed7ce3397fa62a4d2 <6b512a5330ef1a41db7aff4b80c4e952b8d52f17; version=c40aad7c81e5fba34b70123ed7ce3397fa62a4d2 <f2435a46dfa1a5693cf2664afd022db66ee58121; version=d153e8b154f9746ac969c85a4e6474760453647c

Published CVSS scores

2.5Amazon LinuxCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
5.5Red HatCVSS: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-390Detection of Error Condition Without Action
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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