Описание
In the Linux kernel, the following vulnerability has been resolved:
dmaengine: idxd: fix wq size store permission state
WQ size can only be changed when the device is disabled. Current code
allows change when device is enabled but wq is disabled. Change the check
to detect device state.
A flaw was found in the Linux Kernel. The WQ size can only be changed when the device is disabled. The current code allows change when the device is enabled but WQ is disabled. Change the check to detect the device state.
Отчет
This flaw in the Linux kernel idxd driver presents minimal security risk because altering workqueue configuration via sysfs requires administrative privileges (such as CAP_SYS_ADMIN or root). The issue allows modifying workqueue sizes while the underlying device is still enabled, potentially leading to inconsistent device states. Because unprivileged local users and remote actors cannot write to these sysfs parameters, this flaw cannot be leveraged for privilege escalation or unauthorized system access.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 6 | kernel | Out of support scope | ||
| Red Hat Enterprise Linux 7 | kernel | Out of support scope | ||
| Red Hat Enterprise Linux 7 | kernel-rt | Out of support scope | ||
| Red Hat Enterprise Linux 8 | kernel | Not affected | ||
| Red Hat Enterprise Linux 8 | kernel-rt | Not affected | ||
| Red Hat Enterprise Linux 9 | kernel | Not affected | ||
| Red Hat Enterprise Linux 9 | kernel-rt | Not affected |
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Дополнительная информация
Статус:
EPSS
2.3 Low
CVSS3
Связанные уязвимости
In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: fix wq size store permission state WQ size can only be changed when the device is disabled. Current code allows change when device is enabled but wq is disabled. Change the check to detect device state.
In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: fix wq size store permission state WQ size can only be changed when the device is disabled. Current code allows change when device is enabled but wq is disabled. Change the check to detect device state.
In the Linux kernel, the following vulnerability has been resolved: d ...
In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: fix wq size store permission state WQ size can only be changed when the device is disabled. Current code allows change when device is enabled but wq is disabled. Change the check to detect device state.
Уязвимость компонента idxd ядра операционной системы Linux, позволяющая нарушителю выполнить произвольный код
EPSS
2.3 Low
CVSS3