CVE-2024-56561

HIGH

Linux Kernel - Use-After-Free in pci_epc_destroy()

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: PCI: endpoint: Fix PCI domain ID release in pci_epc_destroy() pci_epc_destroy() invokes pci_bus_release_domain_nr() to release the PCI domain ID, but there are two issues: - 'epc->dev' is passed to pci_bus_release_domain_nr() which was already freed by device_unregister(), leading to a use-after-free issue. - Domain ID corresponds to the EPC device parent, so passing 'epc->dev' is also wrong. Fix these issues by passing 'epc->dev.parent' to pci_bus_release_domain_nr() and also do it before device_unregister(). [mani: reworded subject and description]

Scores

CVSS v3 7.8
EPSS 0.0021
EPSS Percentile 11.5%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-416
Status published
Products (10)
linux/Kernel 6.12.0 - 6.12.4linux
Linux/Linux < 6.12
Linux/Linux 0328947c50324cf4b2d8b181bf948edb8101f59f - 4acc902ed3743edd4ac2d3846604a99d17104359
Linux/Linux 0328947c50324cf4b2d8b181bf948edb8101f59f - c74a1df6c2a2df7dd45c3fc1a5edc29a075dcf22
Linux/Linux 6.11.4 - 6.12
Linux/Linux 6.12
Linux/Linux 6.12.4 - 6.12.*
Linux/Linux 6.13
Linux/Linux a4934cd7a18d35fc57025f23773f6f19e2b2dbb1
linux/linux_kernel 6.11.4 - 6.12.4
Published Dec 27, 2024
Tracked Since Feb 18, 2026