CVE-2026-74552

CVE CVE-2026-74552EUVD EUVD-2026-59617Published 2026-08-15T12:27:58.000ZLast changed 2026-08-19T16:38:49.000Z

What the advisory describes

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.

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

Linux — Linux f6d0775119fb905fb02eafa98d575cf8ee792d46 <aa9429edf9fc0e90d6f4da19ea4b5495a54ab117; f6d0775119fb905fb02eafa98d575cf8ee792d46 <075fce376cf852db9293481edce07c181a9b1f46; f6d0775119fb905fb02eafa98d575cf8ee792d46 <4eed33c7db5c0c573928d28d8a2c003642c679b8; patch: 0; f6d0775119fb905fb02eafa98d575cf8ee792d46 <31ce62d36d859423dc39f9902f7c4c307b2e00e3; patch: 6.18.44; patch: 6.1.183; patch: 7.2; patch: 7.1.8; patch: 6.12.103; f6d0775119fb905fb02eafa98d575cf8ee792d46 <f0b791a006512a48b6348494cb6960598fa99a58; f6d0775119fb905fb02eafa98d575cf8ee792d46 <70d9a71aa407044d70b50d356b6decf6659c4d56; patch: 6.6.151; 6.0

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.

Linux — Linux

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