# bpf: Avoid soft lockup in \_\_htab_map_lookup_and_delete_batch()

CVE record · `CVE-2026-98644`

- **Identifiers:** `CVE-2026-98644`
- **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, 15:20 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: `057996380a42bb64ccc04383cfa9c0ace4ea11f0 to before 5c8b1869cb99a32a962388848cd19604fb41263e` (git)
  - affected: `057996380a42bb64ccc04383cfa9c0ace4ea11f0 to before ca5bd55fc508fbb5c08c62206d02237a5b6fc7e8` (git)
  - affected: `057996380a42bb64ccc04383cfa9c0ace4ea11f0 to before 77a3b52b4455e6377e549539e757bc55eedefb51` (git)
  - affected: `057996380a42bb64ccc04383cfa9c0ace4ea11f0 to before f0c09de08ec077098b7e1563f2285f1c136cd816` (git)
  - affected: `057996380a42bb64ccc04383cfa9c0ace4ea11f0 to before 44f9bcb5ab2b268bc763ed3ebec83308b4972936` (git)
  - affected: `057996380a42bb64ccc04383cfa9c0ace4ea11f0 to before 4e48fe9b1c77966bede0a73feb3059d7595f642d` (git)
  - affected: `057996380a42bb64ccc04383cfa9c0ace4ea11f0 to before 85136bf22404474a815fc0ed26ec0d1cbc1bc3f9` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.6`
  - unaffected: `before 5.6` (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 10th percentile, on 7 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-2026-98644](https://www.cve.org/CVERecord?id=CVE-2026-98644)
- [NVD: CVE-2026-98644](https://nvd.nist.gov/vuln/detail/CVE-2026-98644)

### References from the CNA

- <https://git.kernel.org/stable/c/5c8b1869cb99a32a962388848cd19604fb41263e>
- <https://git.kernel.org/stable/c/ca5bd55fc508fbb5c08c62206d02237a5b6fc7e8>
- <https://git.kernel.org/stable/c/77a3b52b4455e6377e549539e757bc55eedefb51>
- <https://git.kernel.org/stable/c/f0c09de08ec077098b7e1563f2285f1c136cd816>
- <https://git.kernel.org/stable/c/44f9bcb5ab2b268bc763ed3ebec83308b4972936>
- <https://git.kernel.org/stable/c/4e48fe9b1c77966bede0a73feb3059d7595f642d>
- <https://git.kernel.org/stable/c/85136bf22404474a815fc0ed26ec0d1cbc1bc3f9>

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-2026-98644>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-98644/>. Everything for agents: <https://agentprime.io/llms.txt>.