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fstec логотип

BDU:2026-13709

Опубликовано: 03 апр. 2026
Источник: fstec
CVSS3: 5.5
CVSS2: 4.6
EPSS Низкий

Описание

Уязвимость функции hv_pci_probe() модуля drivers/pci/controller/pci-hyperv.c драйвера устройств PCI ядра операционной системы Linux связана с отсутствием проверки блокировки. Эксплуатация уязвимости может позволить нарушителю вызвать отказ в обслуживании

Вендор

Red Hat, Inc.
Сообщество свободного программного обеспечения

Наименование ПО

Red Hat Enterprise Linux
Linux

Версия ПО

10 (Red Hat Enterprise Linux)
от 6.19 до 6.19.13 включительно (Linux)

Тип ПО

Операционная система

Операционные системы и аппаратные платформы

Red Hat, Inc. Red Hat Enterprise Linux 10
Сообщество свободного программного обеспечения Linux от 6.19 до 6.19.13 включительно

Уровень опасности уязвимости

Средний уровень опасности (базовая оценка CVSS 2.0 составляет 4,6)
Средний уровень опасности (базовая оценка CVSS 3.1 составляет 5,5)

Возможные меры по устранению уязвимости

В условиях отсутствия обновлений безопасности от производителя рекомендуется придерживаться "Рекомендаций по безопасной настройке операционных систем LINUX", изложенных в методическом документе ФСТЭК России, утверждённом 25 декабря 2022 года.
Использование рекомендаций:
Для Linux:
https://lore.kernel.org/linux-cve-announce/2026050620-CVE-2026-43097-5b0d@gregkh/
https://git.kernel.org/linus/b6422dff0e518245019233432b6bccfc30b73e2f
https://git.kernel.org/stable/c/21bc8e0ba5c2a081b0a2808c976d4c9dbddf1e48
Для продуктов Red Hat Inc.:
https://access.redhat.com/security/cve/cve-2026-43097

Статус уязвимости

Подтверждена производителем

Наличие эксплойта

Данные уточняются

Информация об устранении

Уязвимость устранена

Идентификаторы других систем описаний уязвимостей

EPSS

Процентиль: 2%
0.0012
Низкий

5.5 Medium

CVSS3

4.6 Medium

CVSS2

Связанные уязвимости

CVSS3: 7.8
ubuntu
5 месяцев назад

In the Linux kernel, the following vulnerability has been resolved: PCI: hv: Fix double ida_free in hv_pci_probe error path If hv_pci_probe() fails after storing the domain number in hbus->bridge->domain_nr, there is a call to free this domain_nr via pci_bus_release_emul_domain_nr(), however, during cleanup, the bridge release callback pci_release_host_bridge_dev() also frees the domain_nr causing ida_free to be called on same ID twice and triggering following warning: ida_free called for id=28971 which is not allocated. WARNING: lib/idr.c:594 at ida_free+0xdf/0x160, CPU#0: kworker/0:2/198 Call Trace: pci_bus_release_emul_domain_nr+0x17/0x20 pci_release_host_bridge_dev+0x4b/0x60 device_release+0x3b/0xa0 kobject_put+0x8e/0x220 devm_pci_alloc_host_bridge_release+0xe/0x20 devres_release_all+0x9a/0xd0 device_unbind_cleanup+0x12/0xa0 really_probe+0x1c5/0x3f0 vmbus_add_channel_work+0x135/0x1a0 Fix this by letting pci core handle the free domain_nr and remove the explicit free called in pc...

CVSS3: 5.5
redhat
5 месяцев назад

In the Linux kernel, the following vulnerability has been resolved: PCI: hv: Fix double ida_free in hv_pci_probe error path If hv_pci_probe() fails after storing the domain number in hbus->bridge->domain_nr, there is a call to free this domain_nr via pci_bus_release_emul_domain_nr(), however, during cleanup, the bridge release callback pci_release_host_bridge_dev() also frees the domain_nr causing ida_free to be called on same ID twice and triggering following warning: ida_free called for id=28971 which is not allocated. WARNING: lib/idr.c:594 at ida_free+0xdf/0x160, CPU#0: kworker/0:2/198 Call Trace: pci_bus_release_emul_domain_nr+0x17/0x20 pci_release_host_bridge_dev+0x4b/0x60 device_release+0x3b/0xa0 kobject_put+0x8e/0x220 devm_pci_alloc_host_bridge_release+0xe/0x20 devres_release_all+0x9a/0xd0 device_unbind_cleanup+0x12/0xa0 really_probe+0x1c5/0x3f0 vmbus_add_channel_work+0x135/0x1a0 Fix this by letting pci core handle the free domain_nr and remove the explicit free called in pc...

CVSS3: 7.8
nvd
5 месяцев назад

In the Linux kernel, the following vulnerability has been resolved: PCI: hv: Fix double ida_free in hv_pci_probe error path If hv_pci_probe() fails after storing the domain number in hbus->bridge->domain_nr, there is a call to free this domain_nr via pci_bus_release_emul_domain_nr(), however, during cleanup, the bridge release callback pci_release_host_bridge_dev() also frees the domain_nr causing ida_free to be called on same ID twice and triggering following warning: ida_free called for id=28971 which is not allocated. WARNING: lib/idr.c:594 at ida_free+0xdf/0x160, CPU#0: kworker/0:2/198 Call Trace: pci_bus_release_emul_domain_nr+0x17/0x20 pci_release_host_bridge_dev+0x4b/0x60 device_release+0x3b/0xa0 kobject_put+0x8e/0x220 devm_pci_alloc_host_bridge_release+0xe/0x20 devres_release_all+0x9a/0xd0 device_unbind_cleanup+0x12/0xa0 really_probe+0x1c5/0x3f0 vmbus_add_channel_work+0x135/0x1a0 Fix this by letting pci core handle the free domain_nr and rem

CVSS3: 7.8
debian
5 месяцев назад

In the Linux kernel, the following vulnerability has been resolved: P ...

CVSS3: 7.8
github
5 месяцев назад

In the Linux kernel, the following vulnerability has been resolved: PCI: hv: Fix double ida_free in hv_pci_probe error path If hv_pci_probe() fails after storing the domain number in hbus->bridge->domain_nr, there is a call to free this domain_nr via pci_bus_release_emul_domain_nr(), however, during cleanup, the bridge release callback pci_release_host_bridge_dev() also frees the domain_nr causing ida_free to be called on same ID twice and triggering following warning: ida_free called for id=28971 which is not allocated. WARNING: lib/idr.c:594 at ida_free+0xdf/0x160, CPU#0: kworker/0:2/198 Call Trace: pci_bus_release_emul_domain_nr+0x17/0x20 pci_release_host_bridge_dev+0x4b/0x60 device_release+0x3b/0xa0 kobject_put+0x8e/0x220 devm_pci_alloc_host_bridge_release+0xe/0x20 devres_release_all+0x9a/0xd0 device_unbind_cleanup+0x12/0xa0 really_probe+0x1c5/0x3f0 vmbus_add_channel_work+0x135/0x1a0 Fix this by letting pci core handle the free domain_nr and ...

EPSS

Процентиль: 2%
0.0012
Низкий

5.5 Medium

CVSS3

4.6 Medium

CVSS2