# kprobes: Protect kprobe_blacklist with RCU

CVE record · `CVE-2026-89988`

- **Identifiers:** `CVE-2026-89988`
- **State:** Confirmed
- **Severity:** CVSS 7.8 High
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 16 Sept 2026
- **Updated:** 30 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 16 Sept 2026, 10:33 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: `376e242429bf8539ef39a080ac113c8799840b13 to before 3fb8386682ef4d0858c38bf0d8d8a47ba171fa23` (git)
  - affected: `376e242429bf8539ef39a080ac113c8799840b13 to before 5d97a13defc648c64d138145ace429b6a3d08943` (git)
  - affected: `376e242429bf8539ef39a080ac113c8799840b13 to before 8f406205003f741225f620f0e357ca0de71d45e3` (git)
  - affected: `376e242429bf8539ef39a080ac113c8799840b13 to before 630ed8734a02b992e8a97538179c2ece42c5210f` (git)
  - affected: `376e242429bf8539ef39a080ac113c8799840b13 to before 518d9b5568bb06f86e4434f7a30faa9612ea91ad` (git)
  - affected: `376e242429bf8539ef39a080ac113c8799840b13 to before 5da247e4d1e8661d4d6f997101d59967e8994e32` (git)
  - affected: `376e242429bf8539ef39a080ac113c8799840b13 to before 6e62cf983a2bd547e6bbd3f935539233e5f97f8f` (git)
  - affected: `376e242429bf8539ef39a080ac113c8799840b13 to before 0c4256196b3a105307e2235fbfd85e768bbcdd0f` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `3.16`
  - unaffected: `before 3.16` (semver)
  - unaffected: `5.10.273 to 5.10.*, inclusive` (semver)
  - unaffected: `5.15.224 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: `6.18.51 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

- 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 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 16 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-89988](https://www.cve.org/CVERecord?id=CVE-2026-89988)
- [NVD: CVE-2026-89988](https://nvd.nist.gov/vuln/detail/CVE-2026-89988)

### References from the CNA

- <https://git.kernel.org/stable/c/3fb8386682ef4d0858c38bf0d8d8a47ba171fa23>
- <https://git.kernel.org/stable/c/5d97a13defc648c64d138145ace429b6a3d08943>
- <https://git.kernel.org/stable/c/8f406205003f741225f620f0e357ca0de71d45e3>
- <https://git.kernel.org/stable/c/630ed8734a02b992e8a97538179c2ece42c5210f>
- <https://git.kernel.org/stable/c/518d9b5568bb06f86e4434f7a30faa9612ea91ad>
- <https://git.kernel.org/stable/c/5da247e4d1e8661d4d6f997101d59967e8994e32>
- <https://git.kernel.org/stable/c/6e62cf983a2bd547e6bbd3f935539233e5f97f8f>
- <https://git.kernel.org/stable/c/0c4256196b3a105307e2235fbfd85e768bbcdd0f>

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-2026-89988>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-89988/>. Everything for agents: <https://agentprime.io/llms.txt>.