# IB/hfi1: Fix the PIO_CRED credit-return mmap

CVE record · `CVE-2026-98216`

- **Identifiers:** `CVE-2026-98216`
- **State:** Confirmed
- **Severity:** CVSS 7.1 High
- **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, 08:44 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: `1ec82317a1daac78c04b0c15af89018ccf9fa2b7 to before 535530bb2ea5254e1e9f55280143d262dd065204` (git)
  - affected: `1ec82317a1daac78c04b0c15af89018ccf9fa2b7 to before dcebe0b0bb080a25fe08011fd6b6e741f7912f01` (git)
  - affected: `1ec82317a1daac78c04b0c15af89018ccf9fa2b7 to before 180752deb7270ad37394ab6ef7cf4978fad040b3` (git)
  - affected: `1ec82317a1daac78c04b0c15af89018ccf9fa2b7 to before bafeac9ce5d1ce5256bcf7e5702e831e9aaf419b` (git)
  - affected: `1ec82317a1daac78c04b0c15af89018ccf9fa2b7 to before 62f0f34fbd2b2d5653d33d3b9d42fdcabb1c0101` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.3`
  - unaffected: `before 6.3` (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

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

- **CISA KEV:** Not listed.
- **EPSS:** 0.0013, the 2nd 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-2026-98216](https://www.cve.org/CVERecord?id=CVE-2026-98216)
- [NVD: CVE-2026-98216](https://nvd.nist.gov/vuln/detail/CVE-2026-98216)

### References from the CNA

- <https://git.kernel.org/stable/c/535530bb2ea5254e1e9f55280143d262dd065204>
- <https://git.kernel.org/stable/c/dcebe0b0bb080a25fe08011fd6b6e741f7912f01>
- <https://git.kernel.org/stable/c/180752deb7270ad37394ab6ef7cf4978fad040b3>
- <https://git.kernel.org/stable/c/bafeac9ce5d1ce5256bcf7e5702e831e9aaf419b>
- <https://git.kernel.org/stable/c/62f0f34fbd2b2d5653d33d3b9d42fdcabb1c0101>

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-2026-98216>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-98216/>. Everything for agents: <https://agentprime.io/llms.txt>.