https://vulnerability.circl.lu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Tue, 29 Sep 2026 23:48:28 +0000 https://vulnerability.circl.lu/vuln/cve-2026-74547 <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>hwmon: (adt7470) Fix busy-loop and I2C flooding in update thread</p> <p>When userspace configures &#39;auto_update_interval&#39; to 0 via sysfs, the background kthread executes schedule_timeout_interruptible(0), which returns immediately.</p> <p>If &#39;num_temp_sensors&#39; 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.</p> <p>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.</p> <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>hwmon: (adt7470) Fix busy-loop and I2C flooding in update thread</p> <p>When userspace configures &#39;auto_update_interval&#39; to 0 via sysfs, the background kthread executes schedule_timeout_interruptible(0), which returns immediately.</p> <p>If &#39;num_temp_sensors&#39; 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.</p> <p>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.</p> https://vulnerability.circl.lu/vuln/cve-2026-74547