PT-2025-8608 · Linux+4 · Linux Kernel+4
Publicado
2022-06-27
·
Atualizado
2025-04-14
·
CVE-2022-49675
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
A vulnerability in the Linux kernel has been resolved. The issue arises from the combination of EXPORT SYMBOL and init annotations in the tick nohz full setup() function. This combination is problematic because the .init.text section is freed after initialization, and modules cannot use symbols annotated with init. Access to a freed symbol may result in a kernel panic. The modpost tool, which detects such issues, had been broken for a decade but was recently fixed, leading to the discovery of this vulnerability.
Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Use of Uninitialized Resource
Improper Initialization
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Identificadores relacionados
Produtos afetados
Astra Linux
Centos
Linux Kernel
Red Hat
Suse