# mmc: via-sdmmc: stop card-detect handling on probe failure

CVE record · `CVE-2026-89440`

- **Identifiers:** `CVE-2026-89440`
- **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:** 19 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: `63400da6cd37a9793c19bb6aed7131b58b975a04 to before 5bb5327b92aae17e91c7228953c350a6ee3c94e8` (git)
  - affected: `0959cc1685eb19774300d43ef25e318b457b156b to before d045596706d1b25d38af4a79980b017639fea9d1` (git)
  - affected: `ba91b413983a9235792523c6b9f7ba2586c4d75d to before 806409f12fdb14c9e4c56a64494c9b75f356cd49` (git)
  - affected: `e4e46fb61e3bb4628170810d3f2b996b709b90d9 to before dde5b9c91e9fc64e54a2f186d3ae95868b4dbb02` (git)
  - affected: `e4e46fb61e3bb4628170810d3f2b996b709b90d9 to before efe7f25dd27e35063477b4b0e7eed3675669fd99` (git)
  - affected: `e4e46fb61e3bb4628170810d3f2b996b709b90d9 to before 2550f89589caad7402d618d7dffc038582c94b6b` (git)
  - affected: `e4e46fb61e3bb4628170810d3f2b996b709b90d9 to before c2b8a624911999399cc14822fec3e35032b3cee4` (git)
  - affected: `e4e46fb61e3bb4628170810d3f2b996b709b90d9 to before 088eaa92fcebaa6b957ccf9635afdf39643a577d` (git)
  - affected: `076bcd2c93e16b05c10564e299d6e5d26a766d00` (git)
  - affected: `12b8e81b77c05c658efd9cde3585bbd65ae39b59` (git)
  - affected: `95025a8dd0ec015872f6c16473fe04d6264e68ca` (git)
  - affected: `f59ef2a47a228e51322ad76752a55a8917c56e38` (git)
  - and 9 more
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.2`
  - unaffected: `before 6.2` (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: `6.12.109 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

## 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:** 0.0017, the 6th 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-2026-89440](https://www.cve.org/CVERecord?id=CVE-2026-89440)
- [NVD: CVE-2026-89440](https://nvd.nist.gov/vuln/detail/CVE-2026-89440)

### References from the CNA

- <https://git.kernel.org/stable/c/5bb5327b92aae17e91c7228953c350a6ee3c94e8>
- <https://git.kernel.org/stable/c/d045596706d1b25d38af4a79980b017639fea9d1>
- <https://git.kernel.org/stable/c/806409f12fdb14c9e4c56a64494c9b75f356cd49>
- <https://git.kernel.org/stable/c/dde5b9c91e9fc64e54a2f186d3ae95868b4dbb02>
- <https://git.kernel.org/stable/c/efe7f25dd27e35063477b4b0e7eed3675669fd99>
- <https://git.kernel.org/stable/c/2550f89589caad7402d618d7dffc038582c94b6b>
- <https://git.kernel.org/stable/c/c2b8a624911999399cc14822fec3e35032b3cee4>
- <https://git.kernel.org/stable/c/088eaa92fcebaa6b957ccf9635afdf39643a577d>

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-2026-89440>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-89440/>. Everything for agents: <https://agentprime.io/llms.txt>.