CVE-2026-80614

Kernel crash via premature EMAC IRQ registration

Published Aug 28, 2026 · Updated Aug 28, 2026

NULL pointer dereference in the IBM EMAC driver in Linux 6.12 allows an early hardware interrupt to crash the kernel during device probing. emac_probe() registers the IRQ before devm_platform_ioremap_resource() maps dev->emacp, so emac_irq() can dereference NULL. Reachability requires affected IBM EMAC hardware and an interrupt during the probe window; no attacker-controlled trigger has been documented.

CVSS severityUnavailable
Unscored
EPSS probability0.43%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL pointer dereference in the IBM EMAC driver in Linux 6.12 allows an early hardware interrupt to crash the kernel during device probing. emac_probe() registers the IRQ before devm_platform_ioremap_resource() maps dev->emacp, so emac_irq() can dereference NULL. Reachability requires affected IBM EMAC hardware and an interrupt during the probe window; no attacker-controlled trigger has been documented.

The record

CVE
CVE-2026-80614
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?

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  1. Affected versionversion=6.12
  2. Affected versionversion=dcc34ef7c83473222027f475014a2bf8ab798372 <44068b6863fbda78fc810921ddf61642c377b3ca
  3. Affected versionversion=dcc34ef7c83473222027f475014a2bf8ab798372 <a103cdb0681e7185d1b0a12ce6a7c5416c208ccd
  4. Affected versionversion=dcc34ef7c83473222027f475014a2bf8ab798372 <f623d38fe6c4e8c40b23f42cc6fe6963fa49997b

What conditions does exploitation require?

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

What is affected?

The Linux Kernel Organization · Linuxversion=6.12; version=dcc34ef7c83473222027f475014a2bf8ab798372 <44068b6863fbda78fc810921ddf61642c377b3ca; version=dcc34ef7c83473222027f475014a2bf8ab798372 <a103cdb0681e7185d1b0a12ce6a7c5416c208ccd; version=dcc34ef7c83473222027f475014a2bf8ab798372 <f623d38fe6c4e8c40b23f42cc6fe6963fa49997b

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.

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Technologies

Your stack

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Your stack

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