# signal: avoid shared siginfo namespace rewrites

CVE record · `CVE-2026-93222`

- **Identifiers:** `CVE-2026-93222`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 24 Sept 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 24 Sept 2026, 15:21 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: `7a0cf094944e2540758b7f957eb6846d5126f535 to before e015d1ac6b43a23c52c5163299414ae77d7d4ae0` (git)
  - affected: `7a0cf094944e2540758b7f957eb6846d5126f535 to before 4ee7c4e4719a825052f42f02ec159b5b42b68fbc` (git)
  - affected: `7a0cf094944e2540758b7f957eb6846d5126f535 to before 148b0dae2a1755beb873a2aab51fb191414f068c` (git)
  - affected: `7a0cf094944e2540758b7f957eb6846d5126f535 to before 6b1de022304ef85284c5933a5fb8492f6f54efc9` (git)
  - affected: `7a0cf094944e2540758b7f957eb6846d5126f535 to before 03c8761e75d1619906bb503686f9cc1dfc6a67f4` (git)
  - affected: `7a0cf094944e2540758b7f957eb6846d5126f535 to before a246da20c8e4ae4319511c698b9f26ad0ad1769f` (git)
  - affected: `7a0cf094944e2540758b7f957eb6846d5126f535 to before b655c2040ce836afad5643842543567b31f8c11d` (git)
  - affected: `7a0cf094944e2540758b7f957eb6846d5126f535 to before d19cdc167e696714509e87d3f7ae765b6e164589` (git)
  - affected: `e897dd22800f02bd48aefb1511fff0b2ce96e94c` (git)
  - affected: `2f0e9eed11ca778d0ec5507a739c28472fd4ca20` (git)
  - affected: `5.1.20 to before 5.2` (semver)
  - affected: `5.2.3 to before 5.3` (semver)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.3`
  - unaffected: `before 5.3` (semver)
  - unaffected: `5.10.270 to 5.10.*, inclusive` (semver)
  - unaffected: `5.15.221 to 5.15.*, inclusive` (semver)
  - unaffected: `6.1.188 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.157 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.109 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.50 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.4 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

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

- **CISA KEV:** Not listed.
- **EPSS:** 0.0018, the 7th percentile, on 13 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 24 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-93222](https://www.cve.org/CVERecord?id=CVE-2026-93222)
- [NVD: CVE-2026-93222](https://nvd.nist.gov/vuln/detail/CVE-2026-93222)

### References from the CNA

- <https://git.kernel.org/stable/c/e015d1ac6b43a23c52c5163299414ae77d7d4ae0>
- <https://git.kernel.org/stable/c/4ee7c4e4719a825052f42f02ec159b5b42b68fbc>
- <https://git.kernel.org/stable/c/148b0dae2a1755beb873a2aab51fb191414f068c>
- <https://git.kernel.org/stable/c/6b1de022304ef85284c5933a5fb8492f6f54efc9>
- <https://git.kernel.org/stable/c/03c8761e75d1619906bb503686f9cc1dfc6a67f4>
- <https://git.kernel.org/stable/c/a246da20c8e4ae4319511c698b9f26ad0ad1769f>
- <https://git.kernel.org/stable/c/b655c2040ce836afad5643842543567b31f8c11d>
- <https://git.kernel.org/stable/c/d19cdc167e696714509e87d3f7ae765b6e164589>

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-2026-93222>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

---

The web page: <https://agentprime.io/advisories/CVE-2026-93222/>. Everything for agents: <https://agentprime.io/llms.txt>.