CVE-2026-98001Hinoki check available

Kernel crash via uninitialized clock parent count

Published Sep 25, 2026 · Updated Sep 25, 2026

Kernel crash in the Linux kernel 6.9 LTC4282 hwmon driver occurs during clock-provider setup under affected stack initialization modes. ltc428_clk_provider_setup leaves clk_init_data.num_parents uninitialized while assuming it is zero, so clock registration can consume a stray parent count and crash. Reachability requires an LTC4282 device and a kernel built with CONFIG_INIT_STACK_ALL_PATTERN or CONFIG_INIT_STACK_NONE; no remote trigger is documented.

CVSS severityUnavailable
Unscored
EPSS probability0.17%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Kernel crash in the Linux kernel 6.9 LTC4282 hwmon driver occurs during clock-provider setup under affected stack initialization modes. ltc428_clk_provider_setup leaves clk_init_data.num_parents uninitialized while assuming it is zero, so clock registration can consume a stray parent count and crash. Reachability requires an LTC4282 device and a kernel built with CONFIG_INIT_STACK_ALL_PATTERN or CONFIG_INIT_STACK_NONE; no remote trigger is documented.

The record

CVE
CVE-2026-98001
Published
Sep 25, 2026
Updated
Sep 25, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Sep 25, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 25, 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=6.9
  2. Affected versionversion=cbc29538dbf7d7400f1ffc5dd5713e6a551463a0 <80b46a3d066d4e2c1dd4edb90d4aa3f22ca79f39
  3. Affected versionversion=cbc29538dbf7d7400f1ffc5dd5713e6a551463a0 <aa08ce1ffaf36c7bdd3edd0ad65f72413639bfad
  4. Affected versionversion=cbc29538dbf7d7400f1ffc5dd5713e6a551463a0 <c4a96da5a3f132d80aa971ddbeb86808539ba0e6
  5. Affected versionversion=cbc29538dbf7d7400f1ffc5dd5713e6a551463a0 <e317326d1755ea054b98e7a4833b929157461c35

What conditions does exploitation require?

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

What is affected?

The Linux Kernel Organization · Linuxversion=6.9; version=cbc29538dbf7d7400f1ffc5dd5713e6a551463a0 <80b46a3d066d4e2c1dd4edb90d4aa3f22ca79f39; version=cbc29538dbf7d7400f1ffc5dd5713e6a551463a0 <aa08ce1ffaf36c7bdd3edd0ad65f72413639bfad; version=cbc29538dbf7d7400f1ffc5dd5713e6a551463a0 <c4a96da5a3f132d80aa971ddbeb86808539ba0e6; version=cbc29538dbf7d7400f1ffc5dd5713e6a551463a0 <e317326d1755ea054b98e7a4833b929157461c35

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.

Activity data is delayed. The latest report is Sep 28, 2026.

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No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 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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