AZL-96252
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-96252.json
- JSON Data
- https://api.osv.dev/v1/vulns/AZL-96252
- Upstream
- Published
- 2026-08-15T13:18:00Z
- Modified
- 2026-08-30T05:26:50Z
- Summary
- CVE-2026-74552 affecting package kernel 6.6.150.1-1
- Details
-
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 devmhwmondeviceregisterwithinfo() has been called. At that time, data->hwmondev is not yet initialized. This can trigger a NULL pointer access since lm90updatedevice() and with it lm90updatealarmslocked() will be called. This call schedules reportwork and lm90reportalarms(), which passes the still-NULL data->hwmondev to hwmonnotify_event() and triggers a NULL pointer dereference.
Fix the problem by only scheduling the report and alert workers data->hwmon_dev is set.
- References