CVE-2026-46156
Description
A flaw was found in the Linux kernel's LoongArch architecture. An issue in the loongson_gpu_fixup_dma_hang() function, specifically with incorrect handling of device IDs when a discrete GPU is inserted, can lead to an Address Data Error (ADE). This flaw may allow a local attacker to trigger a kernel panic, resulting in a Denial of Service (DoS).
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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