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Vulnerability CVE-2021-47098
Published: 2024-03-04
| Description: |
In the Linux kernel, the following vulnerability has been resolved:
hwmon: (lm90) Prevent integer overflow/underflow in hysteresis calculations
Commit b50aa49638c7 ("hwmon: (lm90) Prevent integer underflows of
temperature calculations") addressed a number of underflow situations
when writing temperature limits. However, it missed one situation, seen
when an attempt is made to set the hysteresis value to MAX_LONG and the
critical temperature limit is negative.
Use clamp_val() when setting the hysteresis temperature to ensure that
the provided value can never overflow or underflow. |
References: |
https://git.kernel.org/stable/c/d105f30bea9104c590a9e5b495cb8a49bdfe405f
https://git.kernel.org/stable/c/55840b9eae5367b5d5b29619dc2fb7e4596dba46
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