CVE-2026-46250
Description
A flaw was found in the Linux kernel, specifically affecting the MIPS architecture when compiled with LLVM. This vulnerability occurs because LLVM incorrectly restores the $gp register, which is used as a global register variable, after it has been intentionally modified during kernel relocation. This leads to the $gp register pointing to an incorrect memory location, causing an early system crash during initialization. The primary consequence is a Denial of Service (DoS) condition, rendering the system unusable.
Understanding the Weakness (CWE)
Confidentiality
Technical Impact: Read Memory
If the untrusted 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 untrusted pointer references a memory location that is not accessible to the program, or points to a location that is "malformed" or larger than expected by a read or write operation, the application may terminate unexpectedly.
Integrity,Confidentiality,Availability
Technical Impact: Execute Unauthorized Code or Commands; Modify Memory
If the untrusted 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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