CVE-2026-46205
Disallow Private IOCTLs in Linux Kernel
Publication date: 2026-05-28
Last updated on: 2026-05-28
Assigner: kernel.org
Description
Description
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| linux | linux_kernel | * |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-UNKNOWN |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability involves the Linux kernel's media subsystem, specifically the atomisp driver in the staging area. The issue is related to private IOCTL (Input/Output Control) commands, which are not considered as safe as expected. To address this, all private IOCTLs have been disallowed by returning early in the function if the command is non-zero, effectively disabling these potentially unsafe operations while keeping the code structure intact for static analysis tools.
How can this vulnerability impact me? :
The vulnerability could allow unsafe or unintended operations through private IOCTL commands in the atomisp media driver, potentially leading to security risks such as unauthorized access or system instability. By disallowing these private IOCTLs, the risk of exploitation is mitigated, improving the security posture of the Linux kernel.
What immediate steps should I take to mitigate this vulnerability?
The vulnerability is addressed by disallowing all private IOCTLs in the Linux kernel's atomisp media staging code. To mitigate this vulnerability, ensure your Linux kernel is updated to a version that includes this fix, which disables private IOCTLs by returning early if the command is non-zero.