# bpf, sockmap: Reject max_entries > INT_MAX in sock_map_alloc

CVE record · `CVE-2026-98588`

- **Identifiers:** `CVE-2026-98588`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 18 Oct 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 18 Oct 2026, 15:19 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: `0d2c4f9640501ff57ba0be1f5644a02c29a02fa1 to before f4a73f49e256bd835368504462be3b57b03febff` (git)
  - affected: `0d2c4f9640501ff57ba0be1f5644a02c29a02fa1 to before c56191af3a578b9cc265fa3bd5fc0752c59c1781` (git)
  - affected: `0d2c4f9640501ff57ba0be1f5644a02c29a02fa1 to before 909f761868fda329dc69130ef9eb5b5795bcdf00` (git)
  - affected: `0d2c4f9640501ff57ba0be1f5644a02c29a02fa1 to before cc70972ddbf0e3398f2f32624d31db78594d50d8` (git)
  - affected: `0d2c4f9640501ff57ba0be1f5644a02c29a02fa1 to before cea597519b9ca6d691c98d92460ead8ece2a07af` (git)
  - affected: `0d2c4f9640501ff57ba0be1f5644a02c29a02fa1 to before ba7d627dbc67d62df2fa66d7b41e743c3ace0ec8` (git)
  - affected: `0d2c4f9640501ff57ba0be1f5644a02c29a02fa1 to before 814a81c842bd88f6bd8a4ce550d560df071a5d03` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.11`
  - unaffected: `before 5.11` (semver)
  - unaffected: `5.15.222 to 5.15.*, inclusive` (semver)
  - unaffected: `6.1.189 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.158 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.112 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.55 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.9 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:** 0.0021, the 11th percentile, on 9 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 18 Oct 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-98588](https://www.cve.org/CVERecord?id=CVE-2026-98588)
- [NVD: CVE-2026-98588](https://nvd.nist.gov/vuln/detail/CVE-2026-98588)

### References from the CNA

- <https://git.kernel.org/stable/c/f4a73f49e256bd835368504462be3b57b03febff>
- <https://git.kernel.org/stable/c/c56191af3a578b9cc265fa3bd5fc0752c59c1781>
- <https://git.kernel.org/stable/c/909f761868fda329dc69130ef9eb5b5795bcdf00>
- <https://git.kernel.org/stable/c/cc70972ddbf0e3398f2f32624d31db78594d50d8>
- <https://git.kernel.org/stable/c/cea597519b9ca6d691c98d92460ead8ece2a07af>
- <https://git.kernel.org/stable/c/ba7d627dbc67d62df2fa66d7b41e743c3ace0ec8>
- <https://git.kernel.org/stable/c/814a81c842bd88f6bd8a4ce550d560df071a5d03>

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-2026-98588>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-98588/>. Everything for agents: <https://agentprime.io/llms.txt>.