# mtd: mtdoops: free page bitmap when the backing MTD is removed

CVE record · `CVE-2026-89953`

- **Identifiers:** `CVE-2026-89953`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 16 Sept 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 16 Sept 2026, 10:32 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: `be95745f01677245a061a8f51473ef5ec8ad008e to before 477d61d54e097e90f748aa18d013805abd56bcbd` (git)
  - affected: `be95745f01677245a061a8f51473ef5ec8ad008e to before a91ac71e67c3e01ed9afd9841435bebb930293f8` (git)
  - affected: `be95745f01677245a061a8f51473ef5ec8ad008e to before 698944132083d143ef965c0090ee14ba1d9e1a5f` (git)
  - affected: `be95745f01677245a061a8f51473ef5ec8ad008e to before f25c804947e0a28c15e73da8e2e0db959cbed716` (git)
  - affected: `be95745f01677245a061a8f51473ef5ec8ad008e to before 8414f0e9f707226de20b48c7048179fd86d352fc` (git)
  - affected: `be95745f01677245a061a8f51473ef5ec8ad008e to before d06f91a52af11630c9f7e487f6daf242ac310cb8` (git)
  - affected: `be95745f01677245a061a8f51473ef5ec8ad008e to before 1e5cd8bc902331ff801df88cbb299029ae062753` (git)
  - affected: `be95745f01677245a061a8f51473ef5ec8ad008e to before 956e7da12c114f13c63d126ab1d79c3b6a819060` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `2.6.33`
  - unaffected: `before 2.6.33` (semver)
  - unaffected: `5.10.270 to 5.10.*, inclusive` (semver)
  - unaffected: `5.15.221 to 5.15.*, inclusive` (semver)
  - unaffected: `6.1.188 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.157 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.110 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.51 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.5 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:** 0.0022, the 12th percentile, on 13 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 16 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-89953](https://www.cve.org/CVERecord?id=CVE-2026-89953)
- [NVD: CVE-2026-89953](https://nvd.nist.gov/vuln/detail/CVE-2026-89953)

### References from the CNA

- <https://git.kernel.org/stable/c/477d61d54e097e90f748aa18d013805abd56bcbd>
- <https://git.kernel.org/stable/c/a91ac71e67c3e01ed9afd9841435bebb930293f8>
- <https://git.kernel.org/stable/c/698944132083d143ef965c0090ee14ba1d9e1a5f>
- <https://git.kernel.org/stable/c/f25c804947e0a28c15e73da8e2e0db959cbed716>
- <https://git.kernel.org/stable/c/8414f0e9f707226de20b48c7048179fd86d352fc>
- <https://git.kernel.org/stable/c/d06f91a52af11630c9f7e487f6daf242ac310cb8>
- <https://git.kernel.org/stable/c/1e5cd8bc902331ff801df88cbb299029ae062753>
- <https://git.kernel.org/stable/c/956e7da12c114f13c63d126ab1d79c3b6a819060>

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-2026-89953>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-89953/>. Everything for agents: <https://agentprime.io/llms.txt>.