Описание
In the Linux kernel, the following vulnerability has been resolved:
sched/membarrier: reduce the ability to hammer on sys_membarrier
On some systems, sys_membarrier can be very expensive, causing overall
slowdowns for everything. So put a lock on the path in order to
serialize the accesses to prevent the ability for this to be called at
too high of a frequency and saturate the machine.
A flaw was found in sys_membarrier in the Linux kernel in sched/membarrier in how a user calls it at too high of a frequency. This flaw allows a local user to saturate the machine.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 6 | kernel | Not affected | ||
| Red Hat Enterprise Linux 9 | kernel-rt | Affected | ||
| Red Hat Enterprise Linux 7 | kernel-rt | Fixed | RHSA-2024:1332 | 14.03.2024 |
| Red Hat Enterprise Linux 7 | kernel | Fixed | RHSA-2024:1249 | 12.03.2024 |
| Red Hat Enterprise Linux 8 | kernel-rt | Fixed | RHSA-2024:2950 | 22.05.2024 |
| Red Hat Enterprise Linux 8 | kernel | Fixed | RHSA-2024:3138 | 22.05.2024 |
| Red Hat Enterprise Linux 8.2 Advanced Update Support | kernel | Fixed | RHSA-2024:2006 | 23.04.2024 |
| Red Hat Enterprise Linux 8.2 Telecommunications Update Service | kernel-rt | Fixed | RHSA-2024:2008 | 23.04.2024 |
| Red Hat Enterprise Linux 8.2 Telecommunications Update Service | kernel | Fixed | RHSA-2024:2006 | 23.04.2024 |
| Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions | kernel | Fixed | RHSA-2024:2006 | 23.04.2024 |
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Дополнительная информация
Статус:
EPSS
4.7 Medium
CVSS3
Связанные уязвимости
In the Linux kernel, the following vulnerability has been resolved: sched/membarrier: reduce the ability to hammer on sys_membarrier On some systems, sys_membarrier can be very expensive, causing overall slowdowns for everything. So put a lock on the path in order to serialize the accesses to prevent the ability for this to be called at too high of a frequency and saturate the machine.
In the Linux kernel, the following vulnerability has been resolved: sched/membarrier: reduce the ability to hammer on sys_membarrier On some systems, sys_membarrier can be very expensive, causing overall slowdowns for everything. So put a lock on the path in order to serialize the accesses to prevent the ability for this to be called at too high of a frequency and saturate the machine.
In the Linux kernel, the following vulnerability has been resolved: s ...
In the Linux kernel, the following vulnerability has been resolved: sched/membarrier: reduce the ability to hammer on sys_membarrier On some systems, sys_membarrier can be very expensive, causing overall slowdowns for everything. So put a lock on the path in order to serialize the accesses to prevent the ability for this to be called at too high of a frequency and saturate the machine.
EPSS
4.7 Medium
CVSS3