# tee: shm: reject zero-sized allocations in tee_dyn_shm_alloc_helper()

CVE record · `CVE-2026-99097`

- **Identifiers:** `CVE-2026-99097`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 26 Oct 2026
- **Updated:** 26 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 26 Oct 2026, 14:52 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: `cf4441503e20a0c0a36e0a98dcf57de3d3844c91 to before e5dc7af9c3a5373ee7a84959126e7dfa9e4ad50d` (git)
  - affected: `cf4441503e20a0c0a36e0a98dcf57de3d3844c91 to before 65cb86860a80ffc6af897d53f5bd4b1733bca0ec` (git)
  - affected: `cf4441503e20a0c0a36e0a98dcf57de3d3844c91 to before c2a97703359e25ec7ef8b2b0ef32fb3982add90a` (git)
  - affected: `cf4441503e20a0c0a36e0a98dcf57de3d3844c91 to before b7f925fd5226deb953c8dcdc9677d3fcc2717c00` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.10`
  - unaffected: `before 6.10` (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

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

- **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 26 Oct 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-99097](https://www.cve.org/CVERecord?id=CVE-2026-99097)
- [NVD: CVE-2026-99097](https://nvd.nist.gov/vuln/detail/CVE-2026-99097)

### References from the CNA

- <https://git.kernel.org/stable/c/e5dc7af9c3a5373ee7a84959126e7dfa9e4ad50d>
- <https://git.kernel.org/stable/c/65cb86860a80ffc6af897d53f5bd4b1733bca0ec>
- <https://git.kernel.org/stable/c/c2a97703359e25ec7ef8b2b0ef32fb3982add90a>
- <https://git.kernel.org/stable/c/b7f925fd5226deb953c8dcdc9677d3fcc2717c00>

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-2026-99097>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

---

The web page: <https://agentprime.io/advisories/CVE-2026-99097/>. Everything for agents: <https://agentprime.io/llms.txt>.