CVE-2026-46240
Description
A flaw was found in the Linux kernel, specifically within the media: iris driver. This vulnerability, a use-after-free, occurs when a buffer is prematurely freed by session_release_buf() while iris_release_internal_buffers() continues to access it. This improper handling of memory can lead to system instability, crashes, or potentially allow an attacker to gain unauthorized access or execute arbitrary code.
Understanding the Weakness (CWE)
Confidentiality
Technical Impact: Read Memory
If the expired pointer is used in a read operation, an attacker might be able to control data read in by the application.
Availability
Technical Impact: DoS: Crash, Exit, or Restart
If the expired pointer references a memory location that is not accessible to the product, or points to a location that is "malformed" (such as NULL) or larger than expected by a read or write operation, then a crash may occur.
Integrity,Confidentiality,Availability
Technical Impact: Execute Unauthorized Code or Commands
If the expired pointer is used in a function call, or points to unexpected data in a write operation, then code execution may be possible.
Frequently Asked Questions
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