AZL-96120
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-96120.json
- JSON Data
- https://api.osv.dev/v1/vulns/AZL-96120
- Upstream
- Published
- 2026-08-15T13:18:00Z
- Modified
- 2026-08-29T05:27:27Z
- Summary
- CVE-2026-74547 affecting package kernel 6.6.150.1-1
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
hwmon: (adt7470) Fix busy-loop and I2C flooding in update thread
When userspace configures 'autoupdateinterval' to 0 via sysfs, the background kthread executes scheduletimeoutinterruptible(0), which returns immediately.
If 'numtempsensors' is concurrently or previously set to 0, the msleepinterruptible() delay inside adt7470read_temperatures() also becomes 0. This combination forces the background thread into a tight, unbounded busy-loop, hogging the CPU and flooding the I2C bus with a continuous stream of transactions.
Fix this vulnerability by raising the lower limit of the clampval in autoupdateintervalstore() from 0 to 500 milliseconds. This guarantees a reasonable minimum sleep window between sensor updates, protecting the system from intentional or accidental I2C bus denial of service.
- References