CVE-2026-74546

CVE CVE-2026-74546EUVD EUVD-2026-59739Published 2026-08-15T12:27:55.000ZLast changed 2026-08-19T16:38:34.000Z

What the advisory describes

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.

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

Linux — Linux fc958a61ff6d34a0ec42744d3ff524ee202b2e9f <832069bec79cf6f903441c5769d3cdba95d0af33; fc958a61ff6d34a0ec42744d3ff524ee202b2e9f <009240d057e26831cc925feaba4c490209c1d0ba; fc958a61ff6d34a0ec42744d3ff524ee202b2e9f <76963b04b2d1c648d69949d8dd521e1ff7f40b51; fc958a61ff6d34a0ec42744d3ff524ee202b2e9f <d328175045176f85c15c369bd21dc551351e7935; patch: 5.15.216; fc958a61ff6d34a0ec42744d3ff524ee202b2e9f <96ad57d31763559d376416cdf3bf5ae79bbbebec; fc958a61ff6d34a0ec42744d3ff524ee202b2e9f <1b46fe9dc8f8de59310f37e6c5e5c0e05ded46c3; patch: 0; fc958a61ff6d34a0ec42744d3ff524ee202b2e9f <689a2ea75434131d0af58aeb7d51fde40e858b4d; patch: 6.18.44; patch: 6.1.183; 5.15; patch: 7.2; patch: 7.1.8; patch: 6.12.103; patch: 6.6.151

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.

Linux — Linux

Does this concern one of your customers?

This page cannot answer that — it does not know your estate. Whoever has recorded their environments gets the answer the morning after publication, together with a paragraph they can forward to the customer unedited.

Try it for 28 days

Patchlage reports hits and suspected hits. About everything else this system says nothing — neither this page nor the situation report ever claims that an estate is safe.