# smb: client: flush dirty data before zeroing a range

CVE record · `CVE-2026-98683`

- **Identifiers:** `CVE-2026-98683`
- **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:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 18 Oct 2026, 15:45 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: `91d1dfae464987aaf6c79ff51d8674880fb3be77 to before cecf4114069fc19629d284710fd783d56bbca862` (git)
  - affected: `91d1dfae464987aaf6c79ff51d8674880fb3be77 to before e8ba21c7e6ef3d4cb617858760673877b2e4a2bb` (git)
  - affected: `91d1dfae464987aaf6c79ff51d8674880fb3be77 to before 8f8d32c1044f70e46e87550e039a15ff20a4b21c` (git)
  - affected: `13af7446428771e9e529284d390e7994df8be683` (git)
  - affected: `0a9423f99ded38b32bd1864347332cc557e6b141` (git)
  - affected: `7dfa4279c55f467a88e653a5d544817181b22aea` (git)
  - affected: `6.1.110 to before 6.2` (semver)
  - affected: `6.6.51 to before 6.7` (semver)
  - affected: `6.10.10 to before 6.11` (semver)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.11`
  - unaffected: `before 6.11` (semver)
  - unaffected: `6.18.56 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.10 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 5th percentile, on 8 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 18 Oct 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-98683](https://www.cve.org/CVERecord?id=CVE-2026-98683)
- [NVD: CVE-2026-98683](https://nvd.nist.gov/vuln/detail/CVE-2026-98683)

### References from the CNA

- <https://git.kernel.org/stable/c/cecf4114069fc19629d284710fd783d56bbca862>
- <https://git.kernel.org/stable/c/e8ba21c7e6ef3d4cb617858760673877b2e4a2bb>
- <https://git.kernel.org/stable/c/8f8d32c1044f70e46e87550e039a15ff20a4b21c>

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-2026-98683>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-98683/>. Everything for agents: <https://agentprime.io/llms.txt>.