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CVE-2026-74546

UnknownEPSS 0.17%

Last modified

CVE-2026-74546 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 0.17% chance of exploitation in the next 30 days.

Description

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.

Metrics

EPSS Probability
0.17%

6.5th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= fc958a61ff6d34a0ec42744d3ff524ee202b2e9f, < 689a2ea75434131d0af58aeb7d51fde40e858b4d; >= fc958a61ff6d34a0ec42744d3ff524ee202b2e9f, < 009240d057e26831cc925feaba4c490209c1d0ba; >= fc958a61ff6d34a0ec42744d3ff524ee202b2e9f, < d328175045176f85c15c369bd21dc551351e7935; >= fc958a61ff6d34a0ec42744d3ff524ee202b2e9f, < 832069bec79cf6f903441c5769d3cdba95d0af33; >= fc958a61ff6d34a0ec42744d3ff524ee202b2e9f, < 96ad57d31763559d376416cdf3bf5ae79bbbebec; >= fc958a61ff6d34a0ec42744d3ff524ee202b2e9f, < 76963b04b2d1c648d69949d8dd521e1ff7f40b51; >= fc958a61ff6d34a0ec42744d3ff524ee202b2e9f, < 1b46fe9dc8f8de59310f37e6c5e5c0e05ded46c3
LinuxLinux5.15

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is 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.
How severe is CVE-2026-74546?
Severity scoring for CVE-2026-74546 is pending analysis. The EPSS model estimates a 0.17% probability of exploitation in the next 30 days.
How do I fix CVE-2026-74546?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST