# ALSA: core: Fix use-after-free in snd_card_do_free()

CVE record · `CVE-2026-90198`

- **Identifiers:** `CVE-2026-90198`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 17 Sept 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 17 Sept 2026, 16:07 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: `e8ad415b7a55cb9a9fbfc04696518d5ea0b609b3 to before d3d67f680dbc23a5e5e3d3ecfdbf700465809877` (git)
  - affected: `e8ad415b7a55cb9a9fbfc04696518d5ea0b609b3 to before 09b27dd01b98480334c10bf6fb8d41d5fb063a4b` (git)
  - affected: `e8ad415b7a55cb9a9fbfc04696518d5ea0b609b3 to before 03c5dabc8f16bc212a5b26d2425c03a55e55a86d` (git)
  - affected: `e8ad415b7a55cb9a9fbfc04696518d5ea0b609b3 to before 6da22efb5cf490b06ffbca32b10fc8af7654fee0` (git)
  - affected: `e8ad415b7a55cb9a9fbfc04696518d5ea0b609b3 to before a561012868ae37c28f61fdf658bf6f251bc0e8e8` (git)
  - affected: `e8ad415b7a55cb9a9fbfc04696518d5ea0b609b3 to before 7d9b5e86775fa97a487da08b9aa76e1674bf8868` (git)
  - affected: `e8ad415b7a55cb9a9fbfc04696518d5ea0b609b3 to before 5ae1a690c522fea2900ff56c8c2ace7b059f5e04` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.15`
  - unaffected: `before 5.15` (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: `6.18.52 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.6 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:** 0.0023, the 13th 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 17 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-90198](https://www.cve.org/CVERecord?id=CVE-2026-90198)
- [NVD: CVE-2026-90198](https://nvd.nist.gov/vuln/detail/CVE-2026-90198)

### References from the CNA

- <https://git.kernel.org/stable/c/d3d67f680dbc23a5e5e3d3ecfdbf700465809877>
- <https://git.kernel.org/stable/c/09b27dd01b98480334c10bf6fb8d41d5fb063a4b>
- <https://git.kernel.org/stable/c/03c5dabc8f16bc212a5b26d2425c03a55e55a86d>
- <https://git.kernel.org/stable/c/6da22efb5cf490b06ffbca32b10fc8af7654fee0>
- <https://git.kernel.org/stable/c/a561012868ae37c28f61fdf658bf6f251bc0e8e8>
- <https://git.kernel.org/stable/c/7d9b5e86775fa97a487da08b9aa76e1674bf8868>
- <https://git.kernel.org/stable/c/5ae1a690c522fea2900ff56c8c2ace7b059f5e04>

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-2026-90198>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-90198/>. Everything for agents: <https://agentprime.io/llms.txt>.