CVE-2026-89980

Invalid kernel lock access via early Harmony interrupt

Published Sep 16, 2026 · Updated Sep 16, 2026

Race condition in the Linux Harmony ALSA driver allows a pending device interrupt to use uninitialized spinlocks during probe. In snd_harmony_create(), request_irq() exposes the handler before h->lock and h->mixer_lock are initialized, so an early IRQ reaches invalid lock state. Reachability requires PA-RISC Harmony audio hardware and a pending interrupt in the narrow driver-probe window; published material identifies neither an attacker-controlled trigger nor a specific failure mode.

CVSS severityUnavailable
Unscored
EPSS probabilityUnavailable
No score available in this record
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Race condition in the Linux Harmony ALSA driver allows a pending device interrupt to use uninitialized spinlocks during probe. In snd_harmony_create(), request_irq() exposes the handler before h->lock and h->mixer_lock are initialized, so an early IRQ reaches invalid lock state. Reachability requires PA-RISC Harmony audio hardware and a pending interrupt in the narrow driver-probe window; published material identifies neither an attacker-controlled trigger nor a specific failure mode.

The record

CVE
CVE-2026-89980
Published
Sep 16, 2026
Updated
Sep 16, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Sep 16, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 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?

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  1. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <33abb7491e89285a41565670945293dda841afc4
  2. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <7dc239edb6d58e01c9ec868565cc03e7adf91747
  3. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <89992bda7dfbba7ded2ba4185730453c57fa65bc
  4. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <9347588bbd6ad43a85e17046d9c117a41453c52a
  5. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <9af6c9203583655cb7ed45e52e14101652b37547
  6. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <cd209eb3136e002becbda232e399fa31a2276436
  7. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <f86ff9238b0c8284909e073a681a60708b9f36ab
  8. Affected versionversion=2.6.12

What conditions does exploitation require?

Attack vectorUnavailable in this record.
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <33abb7491e89285a41565670945293dda841afc4; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <7dc239edb6d58e01c9ec868565cc03e7adf91747; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <89992bda7dfbba7ded2ba4185730453c57fa65bc; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <9347588bbd6ad43a85e17046d9c117a41453c52a; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <9af6c9203583655cb7ed45e52e14101652b37547; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <cd209eb3136e002becbda232e399fa31a2276436; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <f86ff9238b0c8284909e073a681a60708b9f36ab; version=2.6.12

Published CVSS scores

No CVSS assessment is available in this record.

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)
VectorUnavailable
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

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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