PT-2023-9716 · Linux+7 · Linux Kernel+7
Dan Carpenter
·
Published
2023-10-28
·
Updated
2025-09-29
·
CVE-2023-52840
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 a use after free in the
rmi unregister function() function. The put device() call frees the fn variable, and the subsequent dereference of fn->num of irqs is a use after free. This can be exploited to potentially elevate privileges in the system. The fix involves moving the put device() call to the end.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Use After Free
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Weakness Enumeration
Related Identifiers
Affected Products
Almalinux
Astra Linux
Centos
Linux Kernel
Red Hat
Red Os
Rocky Linux
Suse