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CVE-2026-93820

Опубликовано: 24 сент. 2026
Источник: redhat
CVSS3: 5.5

Описание

In the Linux kernel, the following vulnerability has been resolved: PCI: rockchip: Protect root bus removal with rescan lock Hold the pci_rescan_remove_lock lock while stopping and removing a root bus to avoid racing with concurrent rescan or hotplug operations triggered via sysfs. Such races may lead to use-after-free issues or system crashes. [bhelgaas: commit log]

A flaw was found in the Linux kernel's Rockchip PCIe host controller driver. Stopping and removing a PCIe root bus without proper synchronization creates a race condition with concurrent device rescanning or hotplug operations. A local attacker could exploit this flaw to cause a use-after-free memory error, leading to a system crash and Denial of Service (DoS).

Затронутые пакеты

ПлатформаПакетСостояниеРекомендацияРелиз
Red Hat Enterprise Linux 10kernelNot affected
Red Hat Enterprise Linux 6kernelNot affected
Red Hat Enterprise Linux 7kernelNot affected
Red Hat Enterprise Linux 7kernel-rtNot affected
Red Hat Enterprise Linux 8kernelNot affected
Red Hat Enterprise Linux 8kernel-rtNot affected
Red Hat Enterprise Linux 9kernelNot affected
Red Hat Enterprise Linux 9kernel-rtNot affected
Red Hat OpenShift Container Platform 4openshift/ose-rhel-coreos-8Not affected
Red Hat OpenShift Container Platform 4openshift/ose-rhel-coreos-9Not affected

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Дополнительная информация

Статус:

Moderate
Дефект:
CWE-413
https://bugzilla.redhat.com/show_bug.cgi?id=2540456kernel: PCI: rockchip: Protect root bus removal with rescan lock

5.5 Medium

CVSS3

Связанные уязвимости

ubuntu
18 дней назад

In the Linux kernel, the following vulnerability has been resolved: PCI: rockchip: Protect root bus removal with rescan lock Hold the pci_rescan_remove_lock lock while stopping and removing a root bus to avoid racing with concurrent rescan or hotplug operations triggered via sysfs. Such races may lead to use-after-free issues or system crashes. [bhelgaas: commit log]

nvd
18 дней назад

In the Linux kernel, the following vulnerability has been resolved: PCI: rockchip: Protect root bus removal with rescan lock Hold the pci_rescan_remove_lock lock while stopping and removing a root bus to avoid racing with concurrent rescan or hotplug operations triggered via sysfs. Such races may lead to use-after-free issues or system crashes. [bhelgaas: commit log]

CVSS3: 6.4
msrc
15 дней назад

PCI: rockchip: Protect root bus removal with rescan lock

debian
18 дней назад

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

github
18 дней назад

In the Linux kernel, the following vulnerability has been resolved: PCI: rockchip: Protect root bus removal with rescan lock Hold the pci_rescan_remove_lock lock while stopping and removing a root bus to avoid racing with concurrent rescan or hotplug operations triggered via sysfs. Such races may lead to use-after-free issues or system crashes. [bhelgaas: commit log]

5.5 Medium

CVSS3