Riskcovery

CVE-2024-56561

PCI: endpoint: Fix PCI domain ID release in pci_epc_destroy()

State
Published
Severity
7.8 High
Published
Dec 27, 2024
Updated
May 23, 2026
Reserved
Dec 27, 2024

Read the record on cve.org

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

CVSSScoreVectorSource
3.17.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HCISA-ADP

Weaknesses

Affected Products

ProductVersions
LinuxLinux
  • 0328947c50324cf4b2d8b181bf948edb8101f59f to before c74a1df6c2a2df7dd45c3fc1a5edc29a075dcf22Affected
  • 0328947c50324cf4b2d8b181bf948edb8101f59f to before 4acc902ed3743edd4ac2d3846604a99d17104359Affected
  • a4934cd7a18d35fc57025f23773f6f19e2b2dbb1Affected
  • 6.11.4 to before 6.12Affected
LinuxLinux
  • 6.12Affected
  • before 6.12Not affected
  • 6.12.4 through 6.12.*Not affected
  • 6.13 and laterNot affected

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.