CVE-2026-93821

high

Description

In the Linux kernel, the following vulnerability has been resolved: PCI: altera: 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]

References

https://git.kernel.org/stable/c/c0cd65906e5f7e293ef2568c9524cc0a918333c3

https://git.kernel.org/stable/c/a8759c8ac48c0419f5899e95a6ffc611b07c965b

https://git.kernel.org/stable/c/7cbb8f2750d91e64caff89e164ac8280bb80bedc

Details

Source: Mitre, NVD

Published: 2026-09-24

Updated: 2026-09-25

Risk Information

CVSS v2

Base Score: 7.2

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 7.1

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

Severity: High

EPSS

EPSS: 0.00166