# mtd: block2mtd: Fix divide error when erase_size is zero

CVE record · `CVE-2026-98722`

- **Identifiers:** `CVE-2026-98722`
- **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:** 30 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 18 Oct 2026, 15:46 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: `ea6d833a3fddcd1d60414d48f34c7f4fbe88608f to before c8004de07739fa9a39e310e859384f1458d7d076` (git)
  - affected: `ea6d833a3fddcd1d60414d48f34c7f4fbe88608f to before 7ad5287e58d7aa1a848105f119e6c5b00446882f` (git)
  - affected: `ea6d833a3fddcd1d60414d48f34c7f4fbe88608f to before fd73c079abc58e10183a4db4dc9dc5012db17476` (git)
  - affected: `ea6d833a3fddcd1d60414d48f34c7f4fbe88608f to before bff83b723e93acc788bd690dc4bc1f6f4356c35b` (git)
  - affected: `ea6d833a3fddcd1d60414d48f34c7f4fbe88608f to before 826170a49ca1315af6b293a02200585b1e2186d9` (git)
  - affected: `ea6d833a3fddcd1d60414d48f34c7f4fbe88608f to before a991c28066e7ba4da7450bb04478849f7ac6a14a` (git)
  - affected: `ea6d833a3fddcd1d60414d48f34c7f4fbe88608f to before 21d0f05989bf0d5cef57b467a7fa4feefbd7236a` (git)
  - affected: `ea6d833a3fddcd1d60414d48f34c7f4fbe88608f to before b5965c4221165045e19736794ca5f48ae3d67142` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `3.15`
  - unaffected: `before 3.15` (semver)
  - unaffected: `5.10.273 to 5.10.*, inclusive` (semver)
  - unaffected: `5.15.224 to 5.15.*, inclusive` (semver)
  - unaffected: `6.1.191 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.160 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.113 to 6.12.*, inclusive` (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:** 0.0018, the 7th percentile, on 7 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-2026-98722](https://www.cve.org/CVERecord?id=CVE-2026-98722)
- [NVD: CVE-2026-98722](https://nvd.nist.gov/vuln/detail/CVE-2026-98722)

### References from the CNA

- <https://git.kernel.org/stable/c/c8004de07739fa9a39e310e859384f1458d7d076>
- <https://git.kernel.org/stable/c/7ad5287e58d7aa1a848105f119e6c5b00446882f>
- <https://git.kernel.org/stable/c/fd73c079abc58e10183a4db4dc9dc5012db17476>
- <https://git.kernel.org/stable/c/bff83b723e93acc788bd690dc4bc1f6f4356c35b>
- <https://git.kernel.org/stable/c/826170a49ca1315af6b293a02200585b1e2186d9>
- <https://git.kernel.org/stable/c/a991c28066e7ba4da7450bb04478849f7ac6a14a>
- <https://git.kernel.org/stable/c/21d0f05989bf0d5cef57b467a7fa4feefbd7236a>
- <https://git.kernel.org/stable/c/b5965c4221165045e19736794ca5f48ae3d67142>

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-2026-98722>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-98722/>. Everything for agents: <https://agentprime.io/llms.txt>.