# smb: client: delete compound mids on send failure before unlock

CVE record · `CVE-2026-98449`

- **Identifiers:** `CVE-2026-98449`
- **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:** 6 Nov 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 18 Oct 2026, 15:14 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: `ee258d79159afed52ca9372aeb9c1a51e89b32ee to before 59d30bdc3dd6fd3a8990f59bc7a137b1cbb3ed4e` (git)
  - affected: `ee258d79159afed52ca9372aeb9c1a51e89b32ee to before 70783946f3b5d0c06ec7df0f5e7bec2bfad24efb` (git)
  - affected: `ee258d79159afed52ca9372aeb9c1a51e89b32ee to before 8f6f8a48399f82f4a83f7b9f25b9707e0062a4f9` (git)
  - affected: `3c57a0be487088b08d9c88998f911eb4a7ba36e4` (git)
  - affected: `4.20.11 to before 4.21` (semver)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.0`
  - unaffected: `before 5.0` (semver)
  - unaffected: `6.18.61 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:** 0.0017, the 6th percentile, on 8 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 18 Oct 2026, 15:14 UTC: [Confirmed by the CVE List](https://www.cve.org/CVERecord?id=CVE-2026-98449)
- 18 Oct 2026, 16:16 UTC: [Confirmed by NVD](https://nvd.nist.gov/vuln/detail/CVE-2026-98449)

## Sources

- [CVE List: CVE-2026-98449](https://www.cve.org/CVERecord?id=CVE-2026-98449)
- [NVD: CVE-2026-98449](https://nvd.nist.gov/vuln/detail/CVE-2026-98449)

### References from the CNA

- <https://git.kernel.org/stable/c/59d30bdc3dd6fd3a8990f59bc7a137b1cbb3ed4e>
- <https://git.kernel.org/stable/c/70783946f3b5d0c06ec7df0f5e7bec2bfad24efb>
- <https://git.kernel.org/stable/c/8f6f8a48399f82f4a83f7b9f25b9707e0062a4f9>

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-2026-98449>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-98449/>. Everything for agents: <https://agentprime.io/llms.txt>.