CVE-2024-43875
PCI: endpoint: Clean up error handling in vpci_scan_bus()
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Description
In the Linux kernel, the following vulnerability has been resolved: PCI: endpoint: Clean up error handling in vpci_scan_bus() Smatch complains about inconsistent NULL checking in vpci_scan_bus(): drivers/pci/endpoint/functions/pci-epf-vntb.c:1024 vpci_scan_bus() error: we previously assumed 'vpci_bus' could be null (see line 1021) Instead of printing an error message and then crashing we should return an error code and clean up. Also the NULL check is reversed so it prints an error for success instead of failure.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- https://git.kernel.org/stable/c/0e27e2e8697b8ce96cdef43f135426525d9d1f8f
- https://git.kernel.org/stable/c/24414c842a24d0fd498f9db6d2a762a8dddf1832
- https://git.kernel.org/stable/c/7d368de78b60088ec9031c60c88976c0063ea4c0
- https://git.kernel.org/stable/c/8e0f5a96c534f781e8c57ca30459448b3bfe5429
- https://git.kernel.org/stable/c/b9e8695246bcfc028341470cbf92630cdc1ba36b
References (6)
SSVC — Action Prioritization
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
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