Описание
In the Linux kernel, the following vulnerability has been resolved:
scsi: lpfc: Release hbalock before calling lpfc_worker_wake_up()
lpfc_worker_wake_up() calls the lpfc_work_done() routine, which takes the
hbalock. Thus, lpfc_worker_wake_up() should not be called while holding the
hbalock to avoid potential deadlock.
A flaw was found in the Linux kernel's lpfc driver within the SCSI subsystem. A local privileged user could cause a Denial of Service (DoS) by triggering a kernel deadlock. This issue occurs because the driver fails to release an internal lock before invoking a worker wake-up function, which attempts to acquire the same lock and causes the system to hang.
Отчет
This vulnerability is rated as Moderate severity because it requires local access on systems equipped with Emulex Fibre Channel hardware and is confined to a local denial of service, without impacting data confidentiality or integrity. In typical Red Hat Enterprise Linux deployments, the affected driver is only utilized when Emulex LightPulse host bus adapters are present and active. Consequently, hosts without this specialized storage hardware or installations where the driver module is not loaded remain unaffected.
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-rt | Affected | ||
| Red Hat Enterprise Linux 9 | kernel-rt | Affected | ||
| Red Hat Enterprise Linux 8 | kernel | Fixed | RHSA-2024:5101 | 08.08.2024 |
| Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | kernel | Fixed | RHSA-2024:4902 | 29.07.2024 |
| Red Hat Enterprise Linux 8.6 Telecommunications Update Service | kernel | Fixed | RHSA-2024:4902 | 29.07.2024 |
| Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions | kernel | Fixed | RHSA-2024:4902 | 29.07.2024 |
| Red Hat Enterprise Linux 8.8 Extended Update Support | kernel | Fixed | RHSA-2024:8107 | 15.10.2024 |
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Дополнительная информация
Статус:
EPSS
4.4 Medium
CVSS3
Связанные уязвимости
In the Linux kernel, the following vulnerability has been resolved: scsi: lpfc: Release hbalock before calling lpfc_worker_wake_up() lpfc_worker_wake_up() calls the lpfc_work_done() routine, which takes the hbalock. Thus, lpfc_worker_wake_up() should not be called while holding the hbalock to avoid potential deadlock.
In the Linux kernel, the following vulnerability has been resolved: scsi: lpfc: Release hbalock before calling lpfc_worker_wake_up() lpfc_worker_wake_up() calls the lpfc_work_done() routine, which takes the hbalock. Thus, lpfc_worker_wake_up() should not be called while holding the hbalock to avoid potential deadlock.
scsi: lpfc: Release hbalock before calling lpfc_worker_wake_up()
In the Linux kernel, the following vulnerability has been resolved: s ...
Уязвимость функции lpfc_els_retry_delay() модуля drivers/scsi/lpfc/lpfc_els.c ядра операционной системы Linux, позволяющая нарушителю вызвать отказ в обслуживании
EPSS
4.4 Medium
CVSS3