# IB/IPoIB: Avoid restoring OPER_UP after multicast flush

CVE record · `CVE-2026-98347`

- **Identifiers:** `CVE-2026-98347`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 6 Oct 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 6 Oct 2026, 08:46 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: `344bacca8cd811809fc33a249f2738ab757d327f to before f973769fb7cb33ba0d4a64b7dcfee0cabaead938` (git)
  - affected: `344bacca8cd811809fc33a249f2738ab757d327f to before b72f38929f4b5aa83161fd3b22a7327207e51ec5` (git)
  - affected: `344bacca8cd811809fc33a249f2738ab757d327f to before 1b11e4b55b41d9e69a8e8d07622614202e2eaca9` (git)
  - affected: `344bacca8cd811809fc33a249f2738ab757d327f to before 326f7d34bd7e64de535566b65c0533b640df5a81` (git)
  - affected: `344bacca8cd811809fc33a249f2738ab757d327f to before 5ad925d45f28464a5e043c9620880bb6a030da89` (git)
  - affected: `344bacca8cd811809fc33a249f2738ab757d327f to before 188b334a6db36a8e0bfaaf59bc4020639a0f3aad` (git)
  - affected: `344bacca8cd811809fc33a249f2738ab757d327f to before 1ff3add37c329704ec46181b4ae4f00f9f16ce6f` (git)
  - affected: `344bacca8cd811809fc33a249f2738ab757d327f to before 9a141d3dc869d18b2eab35e999f4790a9b84e40f` (git)
  - affected: `a289c65ca49d2680a3d797e633e57a45573d1df2` (git)
  - affected: `b81459c78935e4579a577b2366c5f8878d3c7fee` (git)
  - affected: `8a9d8dc9ce83a90bfbbe69181acc4cf1beff46f5` (git)
  - affected: `dfe809702a11bd7fb91c882fb55620e39ce22109` (git)
  - and 8 more
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `4.8`
  - unaffected: `before 4.8` (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: `6.18.54 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.8 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:** 0.0018, the 7th percentile, on 10 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 6 Oct 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-98347](https://www.cve.org/CVERecord?id=CVE-2026-98347)
- [NVD: CVE-2026-98347](https://nvd.nist.gov/vuln/detail/CVE-2026-98347)

### References from the CNA

- <https://git.kernel.org/stable/c/f973769fb7cb33ba0d4a64b7dcfee0cabaead938>
- <https://git.kernel.org/stable/c/b72f38929f4b5aa83161fd3b22a7327207e51ec5>
- <https://git.kernel.org/stable/c/1b11e4b55b41d9e69a8e8d07622614202e2eaca9>
- <https://git.kernel.org/stable/c/326f7d34bd7e64de535566b65c0533b640df5a81>
- <https://git.kernel.org/stable/c/5ad925d45f28464a5e043c9620880bb6a030da89>
- <https://git.kernel.org/stable/c/188b334a6db36a8e0bfaaf59bc4020639a0f3aad>
- <https://git.kernel.org/stable/c/1ff3add37c329704ec46181b4ae4f00f9f16ce6f>
- <https://git.kernel.org/stable/c/9a141d3dc869d18b2eab35e999f4790a9b84e40f>

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-2026-98347>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-98347/>. Everything for agents: <https://agentprime.io/llms.txt>.