CVE-2024-56561

HIGH EPSS 11.5%
Published Dec 27, 20241y ago · Modified Jun 17, 20261w ago
7.8 CVSS 3.1
High
Find Similar
Published Dec 27, 2024 1y ago
Last Modified Jun 17, 2026 1w ago

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]

CVSS Details

Base Score
7.8
Exploitability
1.8
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
11.5% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-416 Use After Free Memory Safety

Affected Products 1

VendorProductVersionRange
linuxlinux_kernel*≥6.11.4  –  <6.12.4

References 2

  • git.kernel.org https://git.kernel.org/stable/c/4acc902ed3743edd4ac2d3846604a99d17104359
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c74a1df6c2a2df7dd45c3fc1a5edc29a075dcf22
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/4acc902ed3743edd4ac2d3846604a99d17104359
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c74a1df6c2a2df7dd45c3fc1a5edc29a075dcf22
    Patch