# net/sched: defer qdisc freeing after failed creation

CVE record · `CVE-2026-98017`

- **Identifiers:** `CVE-2026-98017`
- **State:** Confirmed
- **Severity:** CVSS 7.8 High
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 25 Sept 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 25 Sept 2026, 10:23 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: `51ab2994c387c80b45caf8b8067b3f3b97771d25 to before 96a27a3e64e7c87abade03fb2ad04ed66992a89a` (git)
  - affected: `51ab2994c387c80b45caf8b8067b3f3b97771d25 to before 6a1b49bb9fdf9e8e7aa38e8cd635c0cc4074447d` (git)
  - affected: `51ab2994c387c80b45caf8b8067b3f3b97771d25 to before 20bf6fa34b345333971bd4464a322cce87b83f4e` (git)
  - affected: `51ab2994c387c80b45caf8b8067b3f3b97771d25 to before 156a3bab69744e9225bb9eff8c5cc53da18d5a2e` (git)
  - affected: `51ab2994c387c80b45caf8b8067b3f3b97771d25 to before 5bfe927c5b4b290fad529186218c728589b4b101` (git)
  - affected: `51ab2994c387c80b45caf8b8067b3f3b97771d25 to before e6662f2100f8d33b0f4d0047c219efd6bba186ea` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `4.16`
  - unaffected: `before 4.16` (semver)
  - unaffected: `6.1.189 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.158 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.111 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.53 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.7 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

- 7.8 High, CVSS 3.1: `CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`, from CNA (Linux)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0013, the 2nd percentile, on 12 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 25 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-98017](https://www.cve.org/CVERecord?id=CVE-2026-98017)
- [NVD: CVE-2026-98017](https://nvd.nist.gov/vuln/detail/CVE-2026-98017)

### References from the CNA

- <https://git.kernel.org/stable/c/96a27a3e64e7c87abade03fb2ad04ed66992a89a>
- <https://git.kernel.org/stable/c/6a1b49bb9fdf9e8e7aa38e8cd635c0cc4074447d>
- <https://git.kernel.org/stable/c/20bf6fa34b345333971bd4464a322cce87b83f4e>
- <https://git.kernel.org/stable/c/156a3bab69744e9225bb9eff8c5cc53da18d5a2e>
- <https://git.kernel.org/stable/c/5bfe927c5b4b290fad529186218c728589b4b101>
- <https://git.kernel.org/stable/c/e6662f2100f8d33b0f4d0047c219efd6bba186ea>

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-2026-98017>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-98017/>. Everything for agents: <https://agentprime.io/llms.txt>.