CVE-2026-98001
Received Received - Intake

Clock Provider Bug in LTC4282 Linux Kernel Driver

Publication date: 2026-09-25

Last updated on: 2026-09-25

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: hwmon: (ltc4282) Make sure clk_init_data is fully initialized The clk_init_data structure contains several mutually-exclusive members for different methods to specify the possible parents of a clock, prompting drivers to initialize only the members they need. However, not initializing all members may cause subtle issues, which are only exposed when CONFIG_INIT_STACK_ALL_PATTERN or CONFIG_INIT_STACK_NONE is enabled. ltc428_clk_provider_setup() does not fill in any parent clocks, and assumes that init.num_parents is NULL. However, the latter in uninitialized, and thus may cause a crash. Make sure all members are fully initialized, to fix such bugs, and to avoid future breakage when converting drivers to a different method for specifying the parents.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-09-25
Last Modified
2026-09-25
Generated
2026-09-25
AI Q&A
2026-09-25
EPSS Evaluated
N/A
NVD
CVE-2026-98001
EUVD
EUVD-2026-86654

Affected Vendors & Products

Currently, no data is known.

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-UNKNOWN

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

This is a Linux kernel vulnerability in the hwmon subsystem, specifically affecting the ltc4282 driver. The issue involves incomplete initialization of the clk_init_data structure, which can lead to crashes when certain kernel configuration options are enabled. The driver fails to properly set parent clock information, causing potential system instability.

Detection Guidance

This vulnerability is specific to the Linux kernel's hwmon subsystem, particularly the ltc4282 driver. Detection requires checking if the affected driver is loaded and if the kernel is compiled with CONFIG_INIT_STACK_ALL_PATTERN or CONFIG_INIT_STACK_NONE enabled. Commands like 'lsmod | grep ltc4282' can check if the driver is loaded. Kernel configuration can be checked via 'grep INIT_STACK /boot/config-$(uname -r)'. If the driver is loaded and the kernel config matches, the system may be vulnerable.

Impact Analysis

This vulnerability could cause system crashes or instability on affected Linux systems using the ltc4282 hardware monitoring driver. The impact depends on whether the vulnerable configuration options are enabled in your kernel. Most users would experience unexpected system failures or reboots.

Mitigation Strategies

Update the Linux kernel to a version that includes the fix for this vulnerability. If the ltc4282 driver is not in use, unload it with 'rmmod ltc4282'. If the driver is required, ensure the kernel is updated to a patched version. Monitor kernel security advisories for updates.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-98001. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart