Описание
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: Fix memory leak in hci_req_sync_complete()
In 'hci_req_sync_complete()', always free the previous sync
request state before assigning reference to a new one.
This CVE identifies a memory leak in the Linux kernel's Bluetooth subsystem, specifically within the hci_req_sync_complete() function. The issue arises because the function fails to release the previous synchronization request state before assigning a new one, leading to increased memory usage over time. This flaw can degrade system performance and potentially cause a denial of service.
Отчет
This vulnerability is rated as Moderate impact because exploitation requires local privileges and primarily leads to gradual kernel memory exhaustion rather than privilege escalation or arbitrary code execution. In typical Red Hat Enterprise Linux server environments, Bluetooth hardware is absent or unconfigured, significantly limiting exposure. Consequently, the flaw is restricted to systems actively operating Bluetooth interfaces, where repeated synchronization requests can cause a localized denial of service.
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 | Out of support scope | ||
| Red Hat Enterprise Linux 8 | kernel-rt | Out of support scope | ||
| Red Hat Enterprise Linux 9 | kernel-rt | Will not fix | ||
| Red Hat Enterprise Linux 9 | kernel | Fixed | RHSA-2025:6966 | 13.05.2025 |
| Red Hat Enterprise Linux 9 | kernel | Fixed | RHSA-2025:6966 | 13.05.2025 |
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Дополнительная информация
Статус:
EPSS
5.5 Medium
CVSS3
Связанные уязвимости
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: Fix memory leak in hci_req_sync_complete() In 'hci_req_sync_complete()', always free the previous sync request state before assigning reference to a new one.
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: Fix memory leak in hci_req_sync_complete() In 'hci_req_sync_complete()', always free the previous sync request state before assigning reference to a new one.
In the Linux kernel, the following vulnerability has been resolved: B ...
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: Fix memory leak in hci_req_sync_complete() In 'hci_req_sync_complete()', always free the previous sync request state before assigning reference to a new one.
EPSS
5.5 Medium
CVSS3