PT-2023-9449 · Linux+4 · Linux Kernel+4
Published
2023-01-20
·
Updated
2025-09-29
·
CVE-2022-48873
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 use of memory after it has been freed in the fastrpc component of the Linux kernel. This could allow an attacker to impact the confidentiality, integrity, and availability of protected information. The vulnerability is resolved by not removing the map from the list on error paths in
fastrpc init create process and fastrpc device release, instead calling fastrpc map put to avoid use-after-free. The fastrpc free map is the only proper place to remove the map, which is called after the reference count is 0.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
Alt Linux
Astra Linux
Linux Kernel
Red Os
Suse