CVE-2026-43058
Description
A flaw was found in the Linux kernel's vidtv media component. This issue arises from functions incorrectly passing data structures by value, which can lead to MemorySanitizer (MSAN) reporting uninitialized value warnings. Such warnings indicate a risk of memory corruption or undefined behavior, which could potentially be exploited by a local attacker to impact system stability or integrity.
Understanding the Weakness (CWE)
Confidentiality
Technical Impact: Read Memory
If the uninitialized pointer is used in a read operation, an attacker might be able to read sensitive portions of memory.
Availability
Technical Impact: DoS: Crash, Exit, or Restart
If the uninitialized 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 uninitialized 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
Not sure what something means? Check out our Security Glossary.
Want to get errata notifications? Sign up here.
