# ice: fix locking for Tx timestamp tracking flush

CVE record · `CVE-2021-47449`

- **Identifiers:** `CVE-2021-47449`
- **State:** Confirmed
- **Severity:** CVSS 7.1 High
- **Critical:** No
- **CNA:** Linux
- **Weakness (CWE):** [CWE-129](https://cwe.mitre.org/data/definitions/129.html)
- **Tags:** [CWE-129](https://agentprime.io/advisories/tag/cwe-129.md)
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 22 May 2024
- **Updated:** 11 May 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 22 May 2024, 06:19 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: `46720ac66c21bf85e08823664b7b314b85e43f26 to before 61616be899975404df44c20ab902464b60882cd7` (git)
  - affected: `4dd0d5c33c3ebf24a07cae6141648aeb7ba56072 to before 4d4a223a86afe658cd878800f09458e8bb54415d` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.14.4 to before 5.14.14` (semver)
  - Other versions: unaffected

## 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

- 7.1 High, CVSS 3.1: `CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H`, from ADP (CISA-ADP)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0020, the 9th 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 22 May 2024. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2021-47449](https://www.cve.org/CVERecord?id=CVE-2021-47449)
- [NVD: CVE-2021-47449](https://nvd.nist.gov/vuln/detail/CVE-2021-47449)

### References from the CNA

- <https://git.kernel.org/stable/c/61616be899975404df44c20ab902464b60882cd7>
- <https://git.kernel.org/stable/c/4d4a223a86afe658cd878800f09458e8bb54415d>

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-2021-47449>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2021-47449/>. Everything for agents: <https://agentprime.io/llms.txt>.