CVE-2026-93249

Kernel crash via uninitialized clock parent pointer

Published Sep 24, 2026 · Updated Sep 24, 2026

Use of uninitialized data in Linux 6.17 Amlogic SPISG clock setup allows attackers to crash the kernel via unspecified vectors. aml_spisg_clk_init() sets init.parent_data but leaves the mutually exclusive init.parent_names member uninitialized, so clock parent selection can consume stack garbage. The crash path requires the SPISG driver to initialize with CONFIG_INIT_STACK_ALL_PATTERN or CONFIG_INIT_STACK_NONE enabled; no further impact is reported.

CVSS severityUnavailable
Unscored
EPSS probability0.20%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use of uninitialized data in Linux 6.17 Amlogic SPISG clock setup allows attackers to crash the kernel via unspecified vectors. aml_spisg_clk_init() sets init.parent_data but leaves the mutually exclusive init.parent_names member uninitialized, so clock parent selection can consume stack garbage. The crash path requires the SPISG driver to initialize with CONFIG_INIT_STACK_ALL_PATTERN or CONFIG_INIT_STACK_NONE enabled; no further impact is reported.

The record

CVE
CVE-2026-93249
Published
Sep 24, 2026
Updated
Sep 24, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Sep 24, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 24, 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=6.17
  2. Affected versionversion=cef9991e04aed3305c61c392e880f6e01a0c2ea4 <5969a3df8361a0e20379a308c2313d3e263123de
  3. Affected versionversion=cef9991e04aed3305c61c392e880f6e01a0c2ea4 <b2702908ee23ef31bfcf241a2e07ace0eb76bd71
  4. Affected versionversion=cef9991e04aed3305c61c392e880f6e01a0c2ea4 <bfce0f324efaa605e606cbb3f0bdb8fe5c910c11

What conditions does exploitation require?

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

What is affected?

The Linux Kernel Organization · Linuxversion=6.17; version=cef9991e04aed3305c61c392e880f6e01a0c2ea4 <5969a3df8361a0e20379a308c2313d3e263123de; version=cef9991e04aed3305c61c392e880f6e01a0c2ea4 <b2702908ee23ef31bfcf241a2e07ace0eb76bd71; version=cef9991e04aed3305c61c392e880f6e01a0c2ea4 <bfce0f324efaa605e606cbb3f0bdb8fe5c910c11

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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.

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Technologies

Your stack

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Your stack

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