# net/sched: sch_hfsc: bound the classify inner-filter walk with a drift budget

CVE record · `CVE-2026-98610`

- **Identifiers:** `CVE-2026-98610`
- **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: `a2f79227138c71e08627af5f8961197364edbc98 to before d4fd251e3311727c32af89344d3332f788c153a2` (git)
  - affected: `a2f79227138c71e08627af5f8961197364edbc98 to before 30d7fea767e830bd81ac2f73d2e33c877cb2e679` (git)
  - affected: `a2f79227138c71e08627af5f8961197364edbc98 to before f476fb656ca2326d7b2eba98d03ced1cbcf5cd99` (git)
  - affected: `a2f79227138c71e08627af5f8961197364edbc98 to before e8f9979286f70dfbfe0552e2a63000950841bea6` (git)
  - affected: `a2f79227138c71e08627af5f8961197364edbc98 to before 2bd20245dd658789d8cccb37697967b4caba6ad8` (git)
  - affected: `a2f79227138c71e08627af5f8961197364edbc98 to before 0fa25ba50a382d79c0cf060214c2095756836f5f` (git)
  - affected: `a2f79227138c71e08627af5f8961197364edbc98 to before 1301a1292c6742b4c96a18715d49f89c3caca0d7` (git)
  - affected: `a2f79227138c71e08627af5f8961197364edbc98 to before 8a60ade2277e1f0e0d0578d565354e52292fa46d` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `2.6.35`
  - unaffected: `before 2.6.35` (semver)
  - unaffected: `5.10.271 to 5.10.*, inclusive` (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:** 0.0022, the 12th percentile, on 8 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-2026-98610](https://www.cve.org/CVERecord?id=CVE-2026-98610)
- [NVD: CVE-2026-98610](https://nvd.nist.gov/vuln/detail/CVE-2026-98610)

### References from the CNA

- <https://git.kernel.org/stable/c/d4fd251e3311727c32af89344d3332f788c153a2>
- <https://git.kernel.org/stable/c/30d7fea767e830bd81ac2f73d2e33c877cb2e679>
- <https://git.kernel.org/stable/c/f476fb656ca2326d7b2eba98d03ced1cbcf5cd99>
- <https://git.kernel.org/stable/c/e8f9979286f70dfbfe0552e2a63000950841bea6>
- <https://git.kernel.org/stable/c/2bd20245dd658789d8cccb37697967b4caba6ad8>
- <https://git.kernel.org/stable/c/0fa25ba50a382d79c0cf060214c2095756836f5f>
- <https://git.kernel.org/stable/c/1301a1292c6742b4c96a18715d49f89c3caca0d7>
- <https://git.kernel.org/stable/c/8a60ade2277e1f0e0d0578d565354e52292fa46d>

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-2026-98610>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-98610/>. Everything for agents: <https://agentprime.io/llms.txt>.