Description (CNA)
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 (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected fc958a61ff6d34a0ec42744d3ff524ee202b2e9f before 689a2ea75434131d0af58aeb7d51fde40e858b4d; affected fc958a61ff6d34a0ec42744d3ff524ee202b2e9f before 009240d057e26831cc925feaba4c490209c1d0ba; affected fc958a61ff6d34a0ec42744d3ff524ee202b2e9f before d328175045176f85c15c369bd21dc551351e7935; affected fc958a61ff6d34a0ec42744d3ff524ee202b2e9f before 832069bec79cf6f903441c5769d3cdba95d0af33; affected fc958a61ff6d34a0ec42744d3ff524ee202b2e9f before 96ad57d31763559d376416cdf3bf5ae79bbbebec; affected fc958a61ff6d34a0ec42744d3ff524ee202b2e9f before 76963b04b2d1c648d69949d8dd521e1ff7f40b51; affected fc958a61ff6d34a0ec42744d3ff524ee202b2e9f before 1b46fe9dc8f8de59310f37e6c5e5c0e05ded46c3 |
| Linux / Linux | affected 5.15; unaffected 0 before 5.15; unaffected 5.15.216 through 5.15.*; unaffected 6.1.183 through 6.1.*; unaffected 6.6.151 through 6.6.*; unaffected 6.12.103 through 6.12.*; unaffected 6.18.44 through 6.18.*; unaffected 7.1.8 through 7.1.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/689a2ea75434131d0af58aeb7d51fde40e858b4d
- https://git.kernel.org/stable/c/009240d057e26831cc925feaba4c490209c1d0ba
- 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