# mmc: davinci: avoid NULL deref of host->data in IRQ handler

CVE record · `CVE-2026-97502`

- **Identifiers:** `CVE-2026-97502`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 24 Sept 2026
- **Updated:** 3 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 24 Sept 2026, 16:04 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: `b4cff4549b7a8c5fc8b88e3493b6287555f0512c to before 51738de7dd5f8e8b33dfc07ef85bc06d3bf41e96` (git)
  - affected: `b4cff4549b7a8c5fc8b88e3493b6287555f0512c to before f216cf00e829895ff49bdf695c944915e59bd698` (git)
  - affected: `b4cff4549b7a8c5fc8b88e3493b6287555f0512c to before a0cde8d70d64c1a75fbd57f01d9f2d7cccac8319` (git)
  - affected: `b4cff4549b7a8c5fc8b88e3493b6287555f0512c to before 3c5e3e5badbf0592332887d12db02458323682c3` (git)
  - affected: `b4cff4549b7a8c5fc8b88e3493b6287555f0512c to before a01cedf230dc0fcd55b994f5e548d3982ba4c732` (git)
  - affected: `b4cff4549b7a8c5fc8b88e3493b6287555f0512c to before 5b7e151fe9ea9311ba601849aaecdc4fc97fd577` (git)
  - affected: `b4cff4549b7a8c5fc8b88e3493b6287555f0512c to before 4f28846aaf8db9668e338b8987973f8935edff34` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `2.6.33`
  - unaffected: `before 2.6.33` (semver)
  - unaffected: `5.10.271 to 5.10.*, inclusive` (semver)
  - unaffected: `5.15.222 to 5.15.*, inclusive` (semver)
  - unaffected: `6.1.189 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.158 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.111 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.53 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2 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:** 0.0016, the 5th percentile, on 12 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 24 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-97502](https://www.cve.org/CVERecord?id=CVE-2026-97502)
- [NVD: CVE-2026-97502](https://nvd.nist.gov/vuln/detail/CVE-2026-97502)

### References from the CNA

- <https://git.kernel.org/stable/c/51738de7dd5f8e8b33dfc07ef85bc06d3bf41e96>
- <https://git.kernel.org/stable/c/f216cf00e829895ff49bdf695c944915e59bd698>
- <https://git.kernel.org/stable/c/a0cde8d70d64c1a75fbd57f01d9f2d7cccac8319>
- <https://git.kernel.org/stable/c/3c5e3e5badbf0592332887d12db02458323682c3>
- <https://git.kernel.org/stable/c/a01cedf230dc0fcd55b994f5e548d3982ba4c732>
- <https://git.kernel.org/stable/c/5b7e151fe9ea9311ba601849aaecdc4fc97fd577>
- <https://git.kernel.org/stable/c/4f28846aaf8db9668e338b8987973f8935edff34>

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-2026-97502>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-97502/>. Everything for agents: <https://agentprime.io/llms.txt>.