PCI: endpoint: Clean up error handling in vpci_scan_bus()
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-476.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Linux | 5.15.153 to before 5.15.165 | 5.15.165 | Patch available | CNA |
| Linux | Linux | 6.0 and later | 5.15.165, 6.1.103, 6.6.44, 6.10.3, 6.11 | Patch available | CNA |
- Linux VendorLinux Affected 5.15.153 to before 5.15.165 Fixed in 5.15.165 Patch available CNA
- Linux VendorLinux Affected 6.0 and later Fixed in 5.15.165, 6.1.103, 6.6.44, 6.10.3, 6.11 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 5.15.153 to before 5.15.165; 6.0 to before 6.1.103; 6.2 to before 6.6.44; 6.7 to before 6.10.3 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 5.15.153 to before 5.15.165; 6.0 to before 6.1.103; 6.2 to before 6.6.44; 6.7 to before 6.10.3 Vulnerable ·Linux
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.15.165
- Fix · CNA Linux (Linux) Fixed in 5.15.165, 6.1.103, 6.6.44, 6.10.3, 6.11
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
Not affected: 4 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2024-43875
- 2026-10-03 Alias added: GHSA-4g32-c2j9-mx24
References
Patch 5
- https://git.kernel.org/stable/c/24414c842a24d0fd498f9db6d2a762a8dddf1832
- https://git.kernel.org/stable/c/7d368de78b60088ec9031c60c88976c0063ea4c0
- https://git.kernel.org/stable/c/0e27e2e8697b8ce96cdef43f135426525d9d1f8f
- https://git.kernel.org/stable/c/b9e8695246bcfc028341470cbf92630cdc1ba36b
- https://git.kernel.org/stable/c/8e0f5a96c534f781e8c57ca30459448b3bfe5429
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Sources
- CVE-2024-43875 · CVE Program
- CVE-2024-43875 · NVD
- FIRST EPSS
- GHSA-4g32-c2j9-mx24 · GitHub Advisory Database · CC BY 4.0
- CVE-2024-43875 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences