# io_uring/io-wq: don't hide a link from cancellations

CVE record · `CVE-2026-99255`

- **Identifiers:** `CVE-2026-99255`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 3 Nov 2026
- **Updated:** 3 Nov 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 3 Nov 2026, 11:20 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

## Affected products, as the CNA wrote them

- Vendor: Linux. Product: Linux.
  - affected: `768134d4f48109b90f4248feecbeeb7d684e410c to before 98470f164286f7f62aaee519d4d11b9370ce6d7b` (git)
  - affected: `768134d4f48109b90f4248feecbeeb7d684e410c to before d39ebc7a583d650b1d6da9b45e2ce96ad4d877e4` (git)
  - affected: `768134d4f48109b90f4248feecbeeb7d684e410c to before ebe8e97fb99d9f374c482902a00677cfd24a6c27` (git)
  - affected: `768134d4f48109b90f4248feecbeeb7d684e410c to before 3e02b8df0e9fa1423ac2a4e03409a9329c30ac49` (git)
  - affected: `768134d4f48109b90f4248feecbeeb7d684e410c to before 92e20e9c72bdf6cfa6f84eded7b33399bc7061da` (git)
  - affected: `768134d4f48109b90f4248feecbeeb7d684e410c to before 436d48a2ed13112d2d27085325838e5bce6b4507` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.5`
  - unaffected: `before 5.5` (semver)
  - unaffected: `6.1.191 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.161 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.115 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.60 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.14 to 7.2.*, inclusive` (semver)
  - unaffected: `7.4-rc1 to *, inclusive` (original_commit_for_fix)
  - Other versions: affected

## Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

## Severity and exploitation

No source has published a CVSS score for this record yet.

- **CISA KEV:** Not listed.
- **EPSS:** 0.0020, the 9th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 3 Nov 2026, 11:20 UTC: [Confirmed by the CVE List](https://www.cve.org/CVERecord?id=CVE-2026-99255)
- 3 Nov 2026, 11:27 UTC: First seen by agentprime
- 3 Nov 2026, 12:17 UTC: [Confirmed by NVD](https://nvd.nist.gov/vuln/detail/CVE-2026-99255)

## Sources

- [CVE List: CVE-2026-99255](https://www.cve.org/CVERecord?id=CVE-2026-99255)
- [NVD: CVE-2026-99255](https://nvd.nist.gov/vuln/detail/CVE-2026-99255)

### References from the CNA

- <https://git.kernel.org/stable/c/98470f164286f7f62aaee519d4d11b9370ce6d7b>
- <https://git.kernel.org/stable/c/d39ebc7a583d650b1d6da9b45e2ce96ad4d877e4>
- <https://git.kernel.org/stable/c/ebe8e97fb99d9f374c482902a00677cfd24a6c27>
- <https://git.kernel.org/stable/c/3e02b8df0e9fa1423ac2a4e03409a9329c30ac49>
- <https://git.kernel.org/stable/c/92e20e9c72bdf6cfa6f84eded7b33399bc7061da>
- <https://git.kernel.org/stable/c/436d48a2ed13112d2d27085325838e5bce6b4507>

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.

## Check whether this affects you

This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it. Compare the affected versions above with what you run.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), `get_advisory` returns this record and `search_advisories` finds related ones. Setup: <https://agentprime.io/mcp.md>
- As JSON: <https://api.agentprime.io/v1/advisories/CVE-2026-99255>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-99255/>. Everything for agents: <https://agentprime.io/llms.txt>.