CVE-2024-53194
kernel: PCI: Fix use-after-free of slot->bus on hot remove
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · December 27, 2024
Updated · October 29, 2026
Description
A flaw was found in the Linux kernel's PCI subsystem. During device hot-removal, a race condition can cause the system to release a PCI bus structure while it is still referenced by an active slot. A local user capable of triggering device removal or hot-unplug operations could exploit this use-after-free condition to crash the kernel, resulting in a Denial of Service (DoS).
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-416 · Use After Free