PT-2025-8193 · Linux+2 · Linux Kernel+2
Shawn Guo
·
Publicado
2022-03-01
·
Atualizado
2025-04-14
·
CVE-2022-49265
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 versions prior to 5.17.0-rc4+
Description
A sleep-in-atomic bug has been identified in the Linux kernel, caused by the
genpd debug remove() function being called with a spinlock held. This issue occurs when a genpd with GENPD FLAG IRQ SAFE gets removed. The bug can lead to a crash, as evidenced by a call trace showing the dump backtrace and show stack functions being called.Recommendations
For Linux kernel versions prior to 5.17.0-rc4+, consider moving the
genpd debug remove() function out of the locking mechanism to fix the problem. As a temporary workaround, avoid removing genpd with GENPD FLAG IRQ SAFE to minimize the risk of exploitation.Exploit
Correção
Stack Overflow
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Enumeração de Fraquezas
Identificadores relacionados
Produtos afetados
Astra Linux
Linux Kernel
Suse