# mm/damon/core: avoid infinite kdamond_merge_regions() internal loop

CVE record · `CVE-2026-89796`

- **Identifiers:** `CVE-2026-89796`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 16 Sept 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 16 Sept 2026, 10:30 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: `1e865019cef354a5f0314491b4b4fc9f9a613642 to before 407da1dd7f48e5ba22ceb8834f6923390632d025` (git)
  - affected: `d7eda72e59bbf3ed592db7ff0fd8c246c73149a8 to before 65edd8b3a88278c9f8e5c7d8c15d4f296ce35078` (git)
  - affected: `11078e2d11465518a9e85096bd28f8cd5fa1ea41 to before 5b0953f86d65855dc901050f40bbe6da0475d198` (git)
  - affected: `310d6c15e9104c99d5d9d0ff8e5383a79da7d5e6 to before 769c16699c89811386eb003c8fd9dcb8d405b316` (git)
  - affected: `310d6c15e9104c99d5d9d0ff8e5383a79da7d5e6 to before 50a7a5aec1aa43efc297fd4377c1cbdc7d15620d` (git)
  - affected: `310d6c15e9104c99d5d9d0ff8e5383a79da7d5e6 to before 8a96a06e04d210845be5d9581c0e9e338947e8f8` (git)
  - affected: `310d6c15e9104c99d5d9d0ff8e5383a79da7d5e6 to before 123e4619ab6c8ab1c4cb1d7a58311a2af13929cd` (git)
  - affected: `f2bd3184b6aeca6a497394b558337246e09fc02d` (git)
  - affected: `5.15.164 to before 5.15.222` (semver)
  - affected: `6.1.101 to before 6.1.189` (semver)
  - affected: `6.6.41 to before 6.6.158` (semver)
  - affected: `6.9.10 to before 6.10` (semver)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.10`
  - unaffected: `before 6.10` (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: `7.2.5 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 14th 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 16 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-89796](https://www.cve.org/CVERecord?id=CVE-2026-89796)
- [NVD: CVE-2026-89796](https://nvd.nist.gov/vuln/detail/CVE-2026-89796)

### References from the CNA

- <https://git.kernel.org/stable/c/407da1dd7f48e5ba22ceb8834f6923390632d025>
- <https://git.kernel.org/stable/c/65edd8b3a88278c9f8e5c7d8c15d4f296ce35078>
- <https://git.kernel.org/stable/c/5b0953f86d65855dc901050f40bbe6da0475d198>
- <https://git.kernel.org/stable/c/769c16699c89811386eb003c8fd9dcb8d405b316>
- <https://git.kernel.org/stable/c/50a7a5aec1aa43efc297fd4377c1cbdc7d15620d>
- <https://git.kernel.org/stable/c/8a96a06e04d210845be5d9581c0e9e338947e8f8>
- <https://git.kernel.org/stable/c/123e4619ab6c8ab1c4cb1d7a58311a2af13929cd>

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-2026-89796>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-89796/>. Everything for agents: <https://agentprime.io/llms.txt>.