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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-74552 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: hwmon: (lm90) Only report alarms if driver is ready Userspace can read sysfs attributes before driver registration is complete, immediately after devm_hwmon_device_register_with_info() has been called. At that time, data->hwmon_dev is not yet initialized. This can trigger a NULL pointer access since lm90_update_device() and with it lm90_update_alarms_locked() will be called. This call schedules report_work and lm90_report_alarms(), which passes the still-NULL data->hwmon_dev to hwmon_notify_event() and triggers a NULL pointer dereference. Fix the problem by only scheduling the report and alert workers data->hwmon_dev is set.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/075fce376cf852db9293481edce07c181a9b1f46 kernel.org
https://git.kernel.org/stable/c/4eed33c7db5c0c573928d28d8a2c003642c679b8 kernel.org
https://git.kernel.org/stable/c/70d9a71aa407044d70b50d356b6decf6659c4d56 kernel.org
https://git.kernel.org/stable/c/aa9429edf9fc0e90d6f4da19ea4b5495a54ab117 kernel.org
https://git.kernel.org/stable/c/f0b791a006512a48b6348494cb6960598fa99a58 kernel.org

Weakness Enumeration

CWE-ID CWE Name Source

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-74552
NVD Published Date:
08/15/2026
NVD Last Modified:
08/15/2026
Source:
kernel.org