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CVE-2026-74546

hwmon: (adt7470) Fix divide-by-zero TOCTOU crash in fan speed read

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.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version fc958a61ff6d34a0ec42744d3ff524ee202b2e9f
Version < 689a2ea75434131d0af58aeb7d51fde40e858b4d
Status affected
Version fc958a61ff6d34a0ec42744d3ff524ee202b2e9f
Version < 009240d057e26831cc925feaba4c490209c1d0ba
Status affected
Version fc958a61ff6d34a0ec42744d3ff524ee202b2e9f
Version < d328175045176f85c15c369bd21dc551351e7935
Status affected
Version fc958a61ff6d34a0ec42744d3ff524ee202b2e9f
Version < 832069bec79cf6f903441c5769d3cdba95d0af33
Status affected
Version fc958a61ff6d34a0ec42744d3ff524ee202b2e9f
Version < 96ad57d31763559d376416cdf3bf5ae79bbbebec
Status affected
Version fc958a61ff6d34a0ec42744d3ff524ee202b2e9f
Version < 76963b04b2d1c648d69949d8dd521e1ff7f40b51
Status affected
Version fc958a61ff6d34a0ec42744d3ff524ee202b2e9f
Version < 1b46fe9dc8f8de59310f37e6c5e5c0e05ded46c3
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 5.15
Status affected
Version 0
Version < 5.15
Status unaffected
Version <= 5.15.*
Version 5.15.216
Status unaffected
Version <= 6.1.*
Version 6.1.183
Status unaffected
Version <= 6.6.*
Version 6.6.151
Status unaffected
Version <= 6.12.*
Version 6.12.103
Status unaffected
Version <= 6.18.*
Version 6.18.44
Status unaffected
Version <= 7.1.*
Version 7.1.8
Status unaffected
Version <= *
Version 7.2
Status unaffected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.17% 0.07
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://git.kernel.org/stable/c/d328175045176f85c15c369bd21dc551351e7935
https://git.kernel.org/stable/c/832069bec79cf6f903441c5769d3cdba95d0af33
https://git.kernel.org/stable/c/96ad57d31763559d376416cdf3bf5ae79bbbebec
https://git.kernel.org/stable/c/76963b04b2d1c648d69949d8dd521e1ff7f40b51
https://git.kernel.org/stable/c/1b46fe9dc8f8de59310f37e6c5e5c0e05ded46c3
https://git.kernel.org/stable/c/009240d057e26831cc925feaba4c490209c1d0ba
https://git.kernel.org/stable/c/689a2ea75434131d0af58aeb7d51fde40e858b4d