CVE-2026-80678

Service disruption via slave-pointer registration race

Published Aug 28, 2026 · Updated Aug 28, 2026

Race condition in the Linux IMX I2C driver allows attackers to disrupt slave registration or crash affected systems. The i2c_imx_reg_slave function stored a slave pointer before runtime resume succeeded, and an unlocked error-path update raced with dereferencing by the shared-IRQ handler under slave_lock. Exploitation requires IMX I2C slave mode, a runtime-resume failure, and concurrent interrupt handling, resulting in persistent EBUSY registration failures or a NULL-pointer kernel crash.

CVSS severityUnavailable
Unscored
EPSS probability0.14%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Race condition in the Linux IMX I2C driver allows attackers to disrupt slave registration or crash affected systems. The i2c_imx_reg_slave function stored a slave pointer before runtime resume succeeded, and an unlocked error-path update raced with dereferencing by the shared-IRQ handler under slave_lock. Exploitation requires IMX I2C slave mode, a runtime-resume failure, and concurrent interrupt handling, resulting in persistent EBUSY registration failures or a NULL-pointer kernel crash.

The record

CVE
CVE-2026-80678
Published
Aug 28, 2026
Updated
Aug 28, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499
Attack vector
local
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=5.11
  2. Affected versionversion=f7414cd6923fd7f78e57086fc964ba2dc25db5c1 <12a4f0950a158d98552cbaeacc35edccd8d975fa
  3. Affected versionversion=f7414cd6923fd7f78e57086fc964ba2dc25db5c1 <614ca6594e301ff682999797c2216e9685558a2b
  4. Affected versionversion=f7414cd6923fd7f78e57086fc964ba2dc25db5c1 <754bc62f72fd64b202462367134ac8ce95b005de
  5. Affected versionversion=f7414cd6923fd7f78e57086fc964ba2dc25db5c1 <b9f6f4883b9ac86654e75899d0dbf8a7a96ad5d8
  6. Affected versionversion=f7414cd6923fd7f78e57086fc964ba2dc25db5c1 <cfdf6e13518589f911b7eace6ccb788e4ed87397
  7. Affected versionversion=f7414cd6923fd7f78e57086fc964ba2dc25db5c1 <d64ec362c369bbc33833f7936d5f3a706b0d5c45
  8. Affected versionversion=f7414cd6923fd7f78e57086fc964ba2dc25db5c1 <d6748f6802f3eebafaa16a5e5dcfbfb9b3bc173f

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=5.11; version=f7414cd6923fd7f78e57086fc964ba2dc25db5c1 <12a4f0950a158d98552cbaeacc35edccd8d975fa; version=f7414cd6923fd7f78e57086fc964ba2dc25db5c1 <614ca6594e301ff682999797c2216e9685558a2b; version=f7414cd6923fd7f78e57086fc964ba2dc25db5c1 <754bc62f72fd64b202462367134ac8ce95b005de; version=f7414cd6923fd7f78e57086fc964ba2dc25db5c1 <b9f6f4883b9ac86654e75899d0dbf8a7a96ad5d8; version=f7414cd6923fd7f78e57086fc964ba2dc25db5c1 <cfdf6e13518589f911b7eace6ccb788e4ed87397; version=f7414cd6923fd7f78e57086fc964ba2dc25db5c1 <d64ec362c369bbc33833f7936d5f3a706b0d5c45; version=f7414cd6923fd7f78e57086fc964ba2dc25db5c1 <d6748f6802f3eebafaa16a5e5dcfbfb9b3bc173f

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)
Vectorlocal
PrivilegesUnavailable
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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