# tipc: destroy topsrv workqueues before closing connections

CVE record · `CVE-2026-99054`

- **Identifiers:** `CVE-2026-99054`
- **State:** Confirmed
- **Severity:** CVSS 7.8 High
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 23 Oct 2026
- **Updated:** 30 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 23 Oct 2026, 12:22 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: `c5fa7b3cf3cb22e4ac60485fc2dc187fe012910f to before 09dbd610f78aaed65d7b379c270ce4090a8151ac` (git)
  - affected: `c5fa7b3cf3cb22e4ac60485fc2dc187fe012910f to before 21622e5ae8b232c2e64eb1adf5546cf078d2987d` (git)
  - affected: `c5fa7b3cf3cb22e4ac60485fc2dc187fe012910f to before 7167afaaaee37191f8b6afa0c91e0fef41460705` (git)
  - affected: `c5fa7b3cf3cb22e4ac60485fc2dc187fe012910f to before 7f796bb3b440d7f1b14c0e3b520462eb34f553af` (git)
  - affected: `c5fa7b3cf3cb22e4ac60485fc2dc187fe012910f to before da9c16568bc79140a54c1f5fcf07a0305df47b37` (git)
  - affected: `c5fa7b3cf3cb22e4ac60485fc2dc187fe012910f to before 0af8780bdfdfc91fb9127bddb9c48fab67dc9d9e` (git)
  - affected: `c5fa7b3cf3cb22e4ac60485fc2dc187fe012910f to before fb717c536af2aafeca520ff11d1e0f25f7ab8fa9` (git)
  - affected: `c5fa7b3cf3cb22e4ac60485fc2dc187fe012910f to before 3acdd44385bc7e2e57605e073691ce69cc5a960d` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `3.11`
  - unaffected: `before 3.11` (semver)
  - unaffected: `5.10.273 to 5.10.*, inclusive` (semver)
  - unaffected: `5.15.224 to 5.15.*, inclusive` (semver)
  - unaffected: `6.1.191 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.160 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.113 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.57 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.11 to 7.2.*, inclusive` (semver)
  - unaffected: `7.3 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

- 7.8 High, CVSS 3.1: `CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`, from CNA (Linux)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0016, the 5th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

This record came from the full history of the CVE Program, published 23 Oct 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-99054](https://www.cve.org/CVERecord?id=CVE-2026-99054)
- [NVD: CVE-2026-99054](https://nvd.nist.gov/vuln/detail/CVE-2026-99054)

### References from the CNA

- <https://git.kernel.org/stable/c/09dbd610f78aaed65d7b379c270ce4090a8151ac>
- <https://git.kernel.org/stable/c/21622e5ae8b232c2e64eb1adf5546cf078d2987d>
- <https://git.kernel.org/stable/c/7167afaaaee37191f8b6afa0c91e0fef41460705>
- <https://git.kernel.org/stable/c/7f796bb3b440d7f1b14c0e3b520462eb34f553af>
- <https://git.kernel.org/stable/c/da9c16568bc79140a54c1f5fcf07a0305df47b37>
- <https://git.kernel.org/stable/c/0af8780bdfdfc91fb9127bddb9c48fab67dc9d9e>
- <https://git.kernel.org/stable/c/fb717c536af2aafeca520ff11d1e0f25f7ab8fa9>
- <https://git.kernel.org/stable/c/3acdd44385bc7e2e57605e073691ce69cc5a960d>

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-2026-99054>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-99054/>. Everything for agents: <https://agentprime.io/llms.txt>.