# mmc: via-sdmmc: cancel card-detect work on remove

CVE record · `CVE-2026-89441`

- **Identifiers:** `CVE-2026-89441`
- **State:** Confirmed
- **Severity:** CVSS 7.8 High
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 11 Sept 2026
- **Updated:** 30 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 11 Sept 2026, 19:43 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: `f0bf7f61b8405224bc52fc9a3ccd167a68126e00 to before 28e8e9e1f3bdb75b611ea14c39775455528c4012` (git)
  - affected: `f0bf7f61b8405224bc52fc9a3ccd167a68126e00 to before a32603f9b4dd0a1c3ea5845eec7c95f5f8741b3d` (git)
  - affected: `f0bf7f61b8405224bc52fc9a3ccd167a68126e00 to before 3ee1b5c8618a26811840bf9f45cb3120dac1e273` (git)
  - affected: `f0bf7f61b8405224bc52fc9a3ccd167a68126e00 to before 55d71c70f11d9f92c7d2653774001e98cb509deb` (git)
  - affected: `f0bf7f61b8405224bc52fc9a3ccd167a68126e00 to before 0a3c70191868fb007c03ff79693ad4e4b3fdcbb8` (git)
  - affected: `f0bf7f61b8405224bc52fc9a3ccd167a68126e00 to before f7ff3027ef004a331ef911a4886f12bc2e996037` (git)
  - affected: `f0bf7f61b8405224bc52fc9a3ccd167a68126e00 to before eaca730c6f5e3609df62a0469fb789235a93d276` (git)
  - affected: `f0bf7f61b8405224bc52fc9a3ccd167a68126e00 to before 57e5d877f898d5e5c9d672a77bb6bdd24f0d9bf5` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `2.6.31`
  - unaffected: `before 2.6.31` (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: `6.12.112 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.50 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.4 to 7.2.*, inclusive` (semver)
  - unaffected: `7.3 to *, inclusive` (original_commit_for_fix)
  - Other versions: affected

## Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

> The mmc via-sdmmc driver in the Linux kernel is affected from version 2.6.31 until fixed. After the device is removed, queued card-detect work can still run and access freed memory, and the source gives few details on what an attacker needs to trigger this. Upgrade to 5.10.273, 5.15.224, 6.1.191, 6.6.160, or a later release in those stable series.

Written 12 Nov 2026.

## 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

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

- **CISA KEV:** Not listed.
- **EPSS:** 0.0013, the 2nd percentile, on 14 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 11 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-89441](https://www.cve.org/CVERecord?id=CVE-2026-89441)
- [NVD: CVE-2026-89441](https://nvd.nist.gov/vuln/detail/CVE-2026-89441)

### References from the CNA

- <https://git.kernel.org/stable/c/28e8e9e1f3bdb75b611ea14c39775455528c4012>
- <https://git.kernel.org/stable/c/a32603f9b4dd0a1c3ea5845eec7c95f5f8741b3d>
- <https://git.kernel.org/stable/c/3ee1b5c8618a26811840bf9f45cb3120dac1e273>
- <https://git.kernel.org/stable/c/55d71c70f11d9f92c7d2653774001e98cb509deb>
- <https://git.kernel.org/stable/c/0a3c70191868fb007c03ff79693ad4e4b3fdcbb8>
- <https://git.kernel.org/stable/c/f7ff3027ef004a331ef911a4886f12bc2e996037>
- <https://git.kernel.org/stable/c/eaca730c6f5e3609df62a0469fb789235a93d276>
- <https://git.kernel.org/stable/c/57e5d877f898d5e5c9d672a77bb6bdd24f0d9bf5>

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-2026-89441>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-89441/>. Everything for agents: <https://agentprime.io/llms.txt>.