# perf: Fix perf_pmu_migrate_context() leaving events behind

CVE record · `CVE-2026-99187`

- **Identifiers:** `CVE-2026-99187`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 28 Oct 2026
- **Updated:** 30 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 28 Oct 2026, 10:35 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: `bd27568117664b8b3e259721393df420ed51f57b to before 3caf006eb731e88cbb33fb5b7d1f2fdb23712bc7` (git)
  - affected: `bd27568117664b8b3e259721393df420ed51f57b to before d4002e954c612dfc7e3fb5549e4a188ea281fe35` (git)
  - affected: `bd27568117664b8b3e259721393df420ed51f57b to before 3eb08f09bfb364051f51316da873c3bd51a839ef` (git)
  - affected: `bd27568117664b8b3e259721393df420ed51f57b to before f5f0028764de322a3d04eda0d3b6389ca9847446` (git)
  - affected: `bd27568117664b8b3e259721393df420ed51f57b to before e76b36b4be7160eaa14b416681e548b125702395` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.2`
  - unaffected: `before 6.2` (semver)
  - unaffected: `6.6.161 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.115 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.59 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.13 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:** 0.0017, the 6th percentile, on 5 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 28 Oct 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-99187](https://www.cve.org/CVERecord?id=CVE-2026-99187)
- [NVD: CVE-2026-99187](https://nvd.nist.gov/vuln/detail/CVE-2026-99187)

### References from the CNA

- <https://git.kernel.org/stable/c/3caf006eb731e88cbb33fb5b7d1f2fdb23712bc7>
- <https://git.kernel.org/stable/c/d4002e954c612dfc7e3fb5549e4a188ea281fe35>
- <https://git.kernel.org/stable/c/3eb08f09bfb364051f51316da873c3bd51a839ef>
- <https://git.kernel.org/stable/c/f5f0028764de322a3d04eda0d3b6389ca9847446>
- <https://git.kernel.org/stable/c/e76b36b4be7160eaa14b416681e548b125702395>

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-2026-99187>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-99187/>. Everything for agents: <https://agentprime.io/llms.txt>.