PT-2024-11389 · Linux+6 · Linux Kernel+6
Published
2021-09-16
·
Updated
2024-09-30
·
CVE-2021-47393
CVSS v3.1
7.1
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:H/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 feature in the Linux kernel, specifically with the mlxreg-fan driver. The vulnerability occurs when the fan current state is enforced from sysfs and the value of the 'state' argument is above the nominal fan speed maximum. This causes a slab-out-of-bounds error in the thermal cooling device stats update function, which is called when the kernel is configured with the CONFIG THERMAL STATISTICS option. The error is detected by the KASAN (Kernel Address Sanitizer) tool.
Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Out of bounds Read
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Weakness Enumeration
Related Identifiers
Affected Products
Almalinux
Astra Linux
Centos
Linux Kernel
Red Hat
Rocky Linux
Suse