# perf/core: Check kernel access when kernel callchains are requested

CVE record · `CVE-2026-98937`

- **Identifiers:** `CVE-2026-98937`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 23 Oct 2026
- **Updated:** 26 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 23 Oct 2026, 12:11 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: `0764771dab80d7b84b9a271bee7f1b21a04a3f0c to before 132bee76097be421ab3012130b5b506324cf2be1` (git)
  - affected: `0764771dab80d7b84b9a271bee7f1b21a04a3f0c to before 2581b43e162cfc43e6f5d8dd8d2b38f3441550de` (git)
  - affected: `0764771dab80d7b84b9a271bee7f1b21a04a3f0c to before 6e187281f978a2bff98ead6aa40f8ddc9a2c9afb` (git)
  - affected: `0764771dab80d7b84b9a271bee7f1b21a04a3f0c to before a4573a3838ae4fc73b70019cfa1dac9aaea7cc2f` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `2.6.31`
  - unaffected: `before 2.6.31` (semver)
  - unaffected: `6.12.113 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.56 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.10 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:** 0.0017, the 6th percentile, on 6 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-2026-98937](https://www.cve.org/CVERecord?id=CVE-2026-98937)
- [NVD: CVE-2026-98937](https://nvd.nist.gov/vuln/detail/CVE-2026-98937)

### References from the CNA

- <https://git.kernel.org/stable/c/132bee76097be421ab3012130b5b506324cf2be1>
- <https://git.kernel.org/stable/c/2581b43e162cfc43e6f5d8dd8d2b38f3441550de>
- <https://git.kernel.org/stable/c/6e187281f978a2bff98ead6aa40f8ddc9a2c9afb>
- <https://git.kernel.org/stable/c/a4573a3838ae4fc73b70019cfa1dac9aaea7cc2f>

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-2026-98937>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-98937/>. Everything for agents: <https://agentprime.io/llms.txt>.