PT-2023-9703 · Linux+3 · Linux Kernel+3
Ira Weiny
·
Publicado
2023-10-09
·
Atualizado
2025-02-03
·
CVE-2023-52849
CVSS v3.1
5.5
Média
| Vetor | 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 cxl/mem component of the Linux kernel. This occurs when the
cxl memdev unregister() function is called, leading to a crash. The problem arises from the clearing of the cxl memdev driver context (@cxlds) before the subsystem is done using it, specifically when the region that the memdev is a part of is being torn down. The fix involves keeping the driver context valid until the memdev-device unregistration and the subsequent unwinding of related dependencies.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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Enumeração de Fraquezas
Identificadores relacionados
Produtos afetados
Astra Linux
Linux Kernel
Red Os
Suse