# IB/iser: reject a remote invalidation of an unregistered direction

CVE record · `CVE-2026-98358`

- **Identifiers:** `CVE-2026-98358`
- **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: `59caaed7a72a0e3750dfb84636dae6b781559310 to before 198e4db9add54a50cce60a5d80b8f0ee5456b65a` (git)
  - affected: `59caaed7a72a0e3750dfb84636dae6b781559310 to before b9e37452915feaa8422af87dea5d0c16a7d1ff13` (git)
  - affected: `59caaed7a72a0e3750dfb84636dae6b781559310 to before 19ddd4af7fce9200e70882f622011e9dd130f427` (git)
  - affected: `59caaed7a72a0e3750dfb84636dae6b781559310 to before 9d145a2d8d6f8f2cc460b80df41870819048f2a0` (git)
  - affected: `59caaed7a72a0e3750dfb84636dae6b781559310 to before b4d278c91209931199db9c0836dc2e21a7593dad` (git)
  - affected: `59caaed7a72a0e3750dfb84636dae6b781559310 to before 6ed3ebaff3345837f0528d85bd39ce573c7b9a41` (git)
  - affected: `59caaed7a72a0e3750dfb84636dae6b781559310 to before ceecf3f9c322fc6937a66682942a26ad13a34a07` (git)
  - affected: `59caaed7a72a0e3750dfb84636dae6b781559310 to before d85f0f0a7c85756fc992c70d869706f19dac9259` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `4.5`
  - unaffected: `before 4.5` (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:** 0.0016, the 5th 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-2026-98358](https://www.cve.org/CVERecord?id=CVE-2026-98358)
- [NVD: CVE-2026-98358](https://nvd.nist.gov/vuln/detail/CVE-2026-98358)

### References from the CNA

- <https://git.kernel.org/stable/c/198e4db9add54a50cce60a5d80b8f0ee5456b65a>
- <https://git.kernel.org/stable/c/b9e37452915feaa8422af87dea5d0c16a7d1ff13>
- <https://git.kernel.org/stable/c/19ddd4af7fce9200e70882f622011e9dd130f427>
- <https://git.kernel.org/stable/c/9d145a2d8d6f8f2cc460b80df41870819048f2a0>
- <https://git.kernel.org/stable/c/b4d278c91209931199db9c0836dc2e21a7593dad>
- <https://git.kernel.org/stable/c/6ed3ebaff3345837f0528d85bd39ce573c7b9a41>
- <https://git.kernel.org/stable/c/ceecf3f9c322fc6937a66682942a26ad13a34a07>
- <https://git.kernel.org/stable/c/d85f0f0a7c85756fc992c70d869706f19dac9259>

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-2026-98358>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-98358/>. Everything for agents: <https://agentprime.io/llms.txt>.