Vulnerability in Linux

CVE-2026-74546

In the Linux kernel, the following vulnerability has been resolved: hwmon: (adt7470) Fix divide-by-zero TOCTOU crash in fan speed read If the fan data becomes 0 between the FAN_DATA_VALID() check and the FAN_PERIOD_TO_RPM() conversion, it will result in a divide-by-zero crash due to a race with a concurrent update of the cached fan value. Fix a TOCTOU issue by reading fan data once.

Affected products

  • Linux — versions fc958a61ff6d34a0ec42744d3ff524ee202b2e9f, 5.15, 0

References