# pid_namespace: prevent TIF_NOTIFY_SIGNAL from interrupting the reaper

CVE record · `CVE-2026-99244`

- **Identifiers:** `CVE-2026-99244`
- **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, 11:15 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: `edd2754a62bee8d97b4808a15de024f66a1ddccf to before 2c20ace1698d03a23467351be1d281e89b36ade3` (git)
  - affected: `3466abafa9f4f81a869da828e52a12f693175ec2 to before 9ab0324f4868eeb20c63f063a1e5bc01d5539212` (git)
  - affected: `7fea700e04bd3f424c2d836e98425782f97b494e to before 30b274508c743f243c82904954c4e416d7143d4c` (git)
  - affected: `7fea700e04bd3f424c2d836e98425782f97b494e to before 70178691c467c8f9f722765299fd8524c3121a35` (git)
  - affected: `7fea700e04bd3f424c2d836e98425782f97b494e to before 3d15ac36ce174477efa5365e424dbd47950fd2b9` (git)
  - affected: `7fea700e04bd3f424c2d836e98425782f97b494e to before f46cd8241d9b83f2279cc0db3e9d3e181b548a59` (git)
  - affected: `7fea700e04bd3f424c2d836e98425782f97b494e to before 5c0985dd3c32fc2bbd0e8beaf13cf52cd97376a2` (git)
  - affected: `82c7acf9a12c9b4e4b0aba531de82b4e39a345c8` (git)
  - affected: `8e69e589f233ca2c9631f5af2b94f95dfc2ba804` (git)
  - affected: `09ab5b424b17cfe633db58bb2f9edbaf9484cf20` (git)
  - affected: `6.1.95 to before 6.1.191` (semver)
  - affected: `6.6.35 to before 6.6.161` (semver)
  - and 3 more
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.10`
  - unaffected: `before 6.10` (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: `7.3.1 to 7.3.*, 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, 11:15 UTC: [Confirmed by the CVE List](https://www.cve.org/CVERecord?id=CVE-2026-99244)
- 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-2026-99244)

## Sources

- [CVE List: CVE-2026-99244](https://www.cve.org/CVERecord?id=CVE-2026-99244)
- [NVD: CVE-2026-99244](https://nvd.nist.gov/vuln/detail/CVE-2026-99244)

### References from the CNA

- <https://git.kernel.org/stable/c/2c20ace1698d03a23467351be1d281e89b36ade3>
- <https://git.kernel.org/stable/c/9ab0324f4868eeb20c63f063a1e5bc01d5539212>
- <https://git.kernel.org/stable/c/30b274508c743f243c82904954c4e416d7143d4c>
- <https://git.kernel.org/stable/c/70178691c467c8f9f722765299fd8524c3121a35>
- <https://git.kernel.org/stable/c/3d15ac36ce174477efa5365e424dbd47950fd2b9>
- <https://git.kernel.org/stable/c/f46cd8241d9b83f2279cc0db3e9d3e181b548a59>
- <https://git.kernel.org/stable/c/5c0985dd3c32fc2bbd0e8beaf13cf52cd97376a2>

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-2026-99244>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

---

The web page: <https://agentprime.io/advisories/CVE-2026-99244/>. Everything for agents: <https://agentprime.io/llms.txt>.