CVE-2026-53299
Description
A flaw was found in the Linux kernel, specifically within the airoha network driver. This vulnerability arises from an issue where a variable (ndesc) is initialized too early in the airoha_qdma_init_tx_queue routine. If a queue entry list allocation fails, this premature initialization can lead to a NULL pointer dereference, which could allow a local attacker to trigger a system crash. This results in a Denial of Service (DoS), making the system unavailable.
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
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