# iio: adc: ad_sigma_delta: fix use-after-free on unbind

CVE record · `CVE-2026-98677`

- **Identifiers:** `CVE-2026-98677`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 18 Oct 2026
- **Updated:** 30 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 18 Oct 2026, 15:45 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: `8bea9af887de4c99a95f93f2ce400ef63e8b4e9b to before b2a991d33f1e2207052fe745d1fe459db8b365e2` (git)
  - affected: `8bea9af887de4c99a95f93f2ce400ef63e8b4e9b to before 975b09bc680acc60903777b766cdb53b0bf9c9f6` (git)
  - affected: `8bea9af887de4c99a95f93f2ce400ef63e8b4e9b to before 84500ae0d976995a6870cb1dca2d124b6b2d6e5a` (git)
  - affected: `8bea9af887de4c99a95f93f2ce400ef63e8b4e9b to before f20b94a7dc1ff9ade191ce839c984210fdbdc653` (git)
  - affected: `8bea9af887de4c99a95f93f2ce400ef63e8b4e9b to before 5663c72bf400231e90777982216797191887a6b9` (git)
  - affected: `8bea9af887de4c99a95f93f2ce400ef63e8b4e9b to before 9ee8306121495d2a25aa5d1bfd519f2748786b83` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.19`
  - unaffected: `before 5.19` (semver)
  - unaffected: `6.1.191 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.160 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.113 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.56 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.10 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:** 0.0021, the 10th percentile, on 7 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 18 Oct 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-98677](https://www.cve.org/CVERecord?id=CVE-2026-98677)
- [NVD: CVE-2026-98677](https://nvd.nist.gov/vuln/detail/CVE-2026-98677)

### References from the CNA

- <https://git.kernel.org/stable/c/b2a991d33f1e2207052fe745d1fe459db8b365e2>
- <https://git.kernel.org/stable/c/975b09bc680acc60903777b766cdb53b0bf9c9f6>
- <https://git.kernel.org/stable/c/84500ae0d976995a6870cb1dca2d124b6b2d6e5a>
- <https://git.kernel.org/stable/c/f20b94a7dc1ff9ade191ce839c984210fdbdc653>
- <https://git.kernel.org/stable/c/5663c72bf400231e90777982216797191887a6b9>
- <https://git.kernel.org/stable/c/9ee8306121495d2a25aa5d1bfd519f2748786b83>

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-2026-98677>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-98677/>. Everything for agents: <https://agentprime.io/llms.txt>.