# LoongArch: BPF: Fix off-by-one error in build_prologue()

CVE record · `CVE-2025-37893`

- **Identifiers:** `CVE-2025-37893`
- **State:** Confirmed
- **Severity:** CVSS 7.8 High
- **Critical:** No
- **CNA:** Linux
- **Weakness (CWE):** [CWE-193](https://cwe.mitre.org/data/definitions/193.html)
- **Tags:** [CWE-193](https://agentprime.io/advisories/tag/cwe-193.md)
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 18 Apr 2025
- **Updated:** 5 Aug 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 18 Apr 2025, 07:01 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: `5dc615520c4dfb358245680f1904bad61116648e to before b3ffad2f02db4aace6799fe0049508b8925eae45` (git)
  - affected: `5dc615520c4dfb358245680f1904bad61116648e to before 205a2182c51ffebaef54d643e3745e720cded08b` (git)
  - affected: `5dc615520c4dfb358245680f1904bad61116648e to before c74d95a5679741ef428974ab788f5b0758dc78ae` (git)
  - affected: `5dc615520c4dfb358245680f1904bad61116648e to before 48b904de2408af5f936f0e03f48dfcddeab58aa0` (git)
  - affected: `5dc615520c4dfb358245680f1904bad61116648e to before 7e2586991e36663c9bc48c828b83eab180ad30a9` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.1`
  - unaffected: `before 6.1` (semver)
  - unaffected: `6.6.87 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.23 to 6.12.*, inclusive` (semver)
  - unaffected: `6.13.11 to 6.13.*, inclusive` (semver)
  - unaffected: `6.14.2 to 6.14.*, inclusive` (semver)
  - unaffected: `6.15 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) (used for this record)
- 5.5 Medium, CVSS 3.1: `CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H`, from ADP (CISA-ADP)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0028, the 20th percentile, on 6 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 Apr 2025. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2025-37893](https://www.cve.org/CVERecord?id=CVE-2025-37893)
- [NVD: CVE-2025-37893](https://nvd.nist.gov/vuln/detail/CVE-2025-37893)

### References from the CNA

- <https://git.kernel.org/stable/c/b3ffad2f02db4aace6799fe0049508b8925eae45>
- <https://git.kernel.org/stable/c/205a2182c51ffebaef54d643e3745e720cded08b>
- <https://git.kernel.org/stable/c/c74d95a5679741ef428974ab788f5b0758dc78ae>
- <https://git.kernel.org/stable/c/48b904de2408af5f936f0e03f48dfcddeab58aa0>
- <https://git.kernel.org/stable/c/7e2586991e36663c9bc48c828b83eab180ad30a9>

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-2025-37893>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2025-37893/>. Everything for agents: <https://agentprime.io/llms.txt>.