PT-2023-9749 · Linux+7 · Linux Kernel+7
Published
2023-10-20
·
Updated
2025-09-29
·
CVE-2023-52864
CVSS v3.1
7.8
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
The issue is related to the
wmi char open() function in the Linux kernel, which may cause memory corruption if it is unable to find its driver. This can happen when the associated WMI device is deleted in wmi free devices(). The problem is fixed by using the miscdevice pointer to retrieve the WMI device data associated with a char device using container of(). This also avoids wmi char open() picking a wrong WMI device bound to a driver with the same name as the original driver.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Memory Corruption
Buffer Overflow
NULL Pointer Dereference
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Related Identifiers
Affected Products
Almalinux
Astra Linux
Centos
Linux Kernel
Red Hat
Red Os
Rocky Linux
Suse