CVE-2026-80677

Unspecified impact via driver pointer race

Published Aug 28, 2026 · Updated Aug 28, 2026

A race condition in the Linux kernel driver core allows attackers to cause unspecified impact via unspecified vectors. The dev_has_sync_state() function reads dev->driver twice without device_lock(), so device_unbind_cleanup() can clear it between the NULL check and sync_state dereference. Reachability requires a concurrent driver unbind while a caller holds only device_links_write_lock; the Linux CNA record does not state the resulting impact.

CVSS severityUnavailable
Unscored
EPSS probability0.13%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

A race condition in the Linux kernel driver core allows attackers to cause unspecified impact via unspecified vectors. The dev_has_sync_state() function reads dev->driver twice without device_lock(), so device_unbind_cleanup() can clear it between the NULL check and sync_state dereference. Reachability requires a concurrent driver unbind while a caller holds only device_links_write_lock; the Linux CNA record does not state the resulting impact.

The record

CVE
CVE-2026-80677
Published
Aug 28, 2026
Updated
Aug 28, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Aug 28, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 28, 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=5.5.13 <5.6
  2. Affected versionversion=5.6
  3. Affected versionversion=6d88283a49425eb469aa60ffebe76539e73c933e
  4. Affected versionversion=ac338acf514e7b578fa9e3742ec2c292323b4c1a <358697929351f619143f59c6a8a15a4994748b79
  5. Affected versionversion=ac338acf514e7b578fa9e3742ec2c292323b4c1a <51b3e1de53ee5b7775c7ff90e67fdb2665fce938
  6. Affected versionversion=ac338acf514e7b578fa9e3742ec2c292323b4c1a <5e79e0180515b31b2e2244dc3d256fd8b5a07021
  7. Affected versionversion=ac338acf514e7b578fa9e3742ec2c292323b4c1a <860885fcd2611bca8c28dac8b2c1c7ff160f763e
  8. Affected versionversion=ac338acf514e7b578fa9e3742ec2c292323b4c1a <89789e4c141904506163dcb91c7289a074573931
  9. Affected versionversion=ac338acf514e7b578fa9e3742ec2c292323b4c1a <9b0f4082a09760939588135d60a8e9cc994bfa3e
  10. Affected versionversion=ac338acf514e7b578fa9e3742ec2c292323b4c1a <cc77f0d91e3214e4292208f02a1dc09a31f9aac7
  11. Affected versionversion=ac338acf514e7b578fa9e3742ec2c292323b4c1a <e9506871a8ea304cde48ff4a57226df2aadddae3

What conditions does exploitation require?

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

What is affected?

The Linux Kernel Organization · Linuxversion=5.5.13 <5.6; version=5.6; version=6d88283a49425eb469aa60ffebe76539e73c933e; version=ac338acf514e7b578fa9e3742ec2c292323b4c1a <358697929351f619143f59c6a8a15a4994748b79; version=ac338acf514e7b578fa9e3742ec2c292323b4c1a <51b3e1de53ee5b7775c7ff90e67fdb2665fce938; version=ac338acf514e7b578fa9e3742ec2c292323b4c1a <5e79e0180515b31b2e2244dc3d256fd8b5a07021; version=ac338acf514e7b578fa9e3742ec2c292323b4c1a <860885fcd2611bca8c28dac8b2c1c7ff160f763e; version=ac338acf514e7b578fa9e3742ec2c292323b4c1a <89789e4c141904506163dcb91c7289a074573931; version=ac338acf514e7b578fa9e3742ec2c292323b4c1a <9b0f4082a09760939588135d60a8e9cc994bfa3e; version=ac338acf514e7b578fa9e3742ec2c292323b4c1a <cc77f0d91e3214e4292208f02a1dc09a31f9aac7; version=ac338acf514e7b578fa9e3742ec2c292323b4c1a <e9506871a8ea304cde48ff4a57226df2aadddae3

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

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)
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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