PT-2024-36866

CVE-2024-56561

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Published

2024-11-18

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Updated

2025-04-24

Description by

CVSS 3.1
7.8
High
MetricsAV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)
Description The issue arises in the Linux kernel's PCI endpoint functionality, specifically in the pci epc destroy() function. This function invokes pci bus release domain nr() to release the PCI domain ID. However, two problems exist:
  • The epc->dev is passed to pci bus release domain nr(), which has already been freed by device unregister(), leading to a use-after-free issue.
  • The domain ID corresponds to the EPC device parent, making it incorrect to pass epc->dev. To fix these issues, epc->dev.parent should be passed to pci bus release domain nr() before device unregister() is called.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploitability
Exploit
Impacts
Vendors
Affected products
Weakness enumeration
CWE-416: Use After Free
Related identifiers
CVE-2024-56561
BDU:2025-07227
USN-7379-1
USN-7379-2
USN-7380-1
USN-7381-1
USN-7382-1
USN-7449-1
USN-7449-2
USN-7450-1
USN-7451-1
USN-7452-1
USN-7453-1
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