{"apiVersion":"1.0","identifier":"CVE-2026-74547","description":"In the Linux kernel, the following vulnerability has been resolved: hwmon: (adt7470) Fix busy-loop and I2C flooding in update thread When userspace configures -auto_update_interval- to 0 via sysfs, the background kthread executes schedule_timeout_interruptible(0), which returns immediately. If -num_temp_sensors- is concurrently or previously set to 0, the msleep_interruptible() delay inside adt7470_read_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 clamp_val in auto_update_interval_store() 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.","publishedAt":"2026-08-15T13:18:00","lastModifiedAt":"2026-08-19T17:21:09","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-74547","cvssScore":null,"cvssVector":"Pending","epssProbability":0.00177,"riskScore":0,"affectedProduct":"Linux kernel","affectedVersions":"unknown","vulnerabilityType":"Kernel","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-74547","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-74547","en":"https://www.redsauce.net/en/cves/CVE-2026-74547","fr":"https://www.redsauce.net/fr/cves/CVE-2026-74547","pt":"https://www.redsauce.net/pt/cves/CVE-2026-74547","de":"https://www.redsauce.net/de/cves/CVE-2026-74547","sk":"https://www.redsauce.net/sk/cves/CVE-2026-74547","el":"https://www.redsauce.net/el/cves/CVE-2026-74547"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-74547"}}