PT-2023-9334 · Linux+4 · Linux Kernel+4
Johan Hovold
·
Published
2023-01-03
·
Updated
2025-09-29
·
CVE-2022-48879
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 a NULL pointer dereference in the EFI initialization error path. When runtime services are not supported or have been disabled, the runtime services workqueue is never allocated. To avoid dereferencing a NULL pointer, the workqueue should not be destroyed unconditionally in the event of EFI initialization failure. This issue may allow an attacker to cause a denial of service.
Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
NULL Pointer Dereference
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Weakness Enumeration
Related Identifiers
Affected Products
Alt Linux
Astra Linux
Linux Kernel
Red Os
Suse