PT-2022-7502 · Linux+4 · Linux Kernel+4
Jon Hunter
·
Published
2022-02-22
·
Updated
2025-09-29
·
CVE-2022-48942
CVSS v3.1
5.5
Medium
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
The issue is related to the hwmon component of the Linux kernel, which can lead to a NULL pointer dereference when attempting to register a sensor with a thermal zone. This may cause the system to crash. The exact call sequence involves
hwmon notify event() calling hwmon thermal notify(), which then calls thermal zone device update() and update temperature(), resulting in a call to mutex lock(). The hwmon core needs to handle errors returned from devm thermal zone of sensor register() to prevent such crashes.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
DoS
NULL Pointer Dereference
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Weakness Enumeration
Related Identifiers
Affected Products
Astra Linux
Linux Kernel
Red Hat
Red Os
Suse