CVE-2021-47098
hwmon: (lm90) Prevent integer overflow/underflow in hysteresis calculations
- State
- Published
- Severity
- Not scored
- Published
- Mar 4, 2024
- Updated
- May 11, 2026
- Reserved
- Feb 29, 2024
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.
Scores
The record has no CVSS score.
Weaknesses
The record names no weakness.
Affected Products
| Product | Versions |
|---|---|
LinuxLinux |
|
LinuxLinux |
|
References
Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.