CVE-2026-74546

Published: Ago 15, 2026 Last Modified: Ago 15, 2026
ExploitDB:
Other exploit source:
Google Dorks:

Description

AI Translation Available

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.

https://git.kernel.org/stable/c/1b46fe9dc8f8de59310f37e6c5e…
https://git.kernel.org/stable/c/1b46fe9dc8f8de59310f37e6c5e5c0e05ded46c3
https://git.kernel.org/stable/c/76963b04b2d1c648d69949d8dd5…
https://git.kernel.org/stable/c/76963b04b2d1c648d69949d8dd521e1ff7f40b51
https://git.kernel.org/stable/c/832069bec79cf6f903441c5769d…
https://git.kernel.org/stable/c/832069bec79cf6f903441c5769d3cdba95d0af33
https://git.kernel.org/stable/c/96ad57d31763559d376416cdf3b…
https://git.kernel.org/stable/c/96ad57d31763559d376416cdf3bf5ae79bbbebec
https://git.kernel.org/stable/c/d328175045176f85c15c369bd21…
https://git.kernel.org/stable/c/d328175045176f85c15c369bd21dc551351e7935