CVE-2026-23334
Description
A flaw was found in the Linux kernel's can: usb: f81604 module. This vulnerability arises when the system processes Universal Serial Bus (USB) interrupt request blocks (URBs) that are shorter than their expected length. Improper handling of these malformed messages could lead to unexpected system behavior or resource issues, potentially resulting in a Denial of Service (DoS).
Understanding the Weakness (CWE)
Integrity,Availability,Confidentiality
Technical Impact: DoS: Crash, Exit, or Restart; Execute Unauthorized Code or Commands; Read Memory; Modify Memory
If the incorrect calculation is used in the context of memory allocation, then the software may create a buffer that is smaller or larger than expected. If the allocated buffer is smaller than expected, this could lead to an out-of-bounds read or write (CWE-119), possibly causing a crash, allowing arbitrary code execution, or exposing sensitive data.
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