Tracker / CVE-2025-71111
CVE-2025-71111
In the Linux kernel, the following vulnerability has been resolved: hwmon: (w83791d) Convert macros to functions to avoid TOCTOU The macro FAN_FROM_REG evaluates its arguments multiple times. When used in lockless contexts involving shared driver data, this leads to Time-of-Check to Time-of-Use (TOCTOU) race conditions, potentially causing divide-by-zero errors. Convert the macro to a static function. This guarantees that arguments are evaluated only once (pass-by-value), preventing the race conditions. Additionally, in store_fan_div, move the calculation of the minimum limit inside the update lock. This ensures that the read-modify-write sequence operates on consistent data. Adhere to the principle of minimal changes by only converting macros that evaluate arguments multiple times and are used in lockless contexts.
Prodotti e versioni affette
| linux | linux_kernel |
|---|---|
| linux | linux_kernel · 2.6.18.1 → 5.10.248 |
| linux | linux_kernel · 5.11 → 5.15.198 |
| linux | linux_kernel · 5.16 → 6.1.160 |
| linux | linux_kernel · 6.13 → 6.18.3 |
| linux | linux_kernel · 6.2 → 6.6.120 |
| linux | linux_kernel · 6.7 → 6.12.64 |