CVE-2026-64502
Description
A flaw was found in the Linux kernel's ad_sigma_delta driver. This vulnerability exists within the clear_pending_event function, affecting certain registerless devices or those with specific configurations. When specific conditions are met during device operation, an internal memory operation attempts to write beyond its intended buffer, leading to a heap overflow. This memory corruption could result in a system crash, causing a denial of service, or potentially lead to arbitrary code execution.
Understanding the Weakness (CWE)
Integrity
Technical Impact: Modify Memory; Execute Unauthorized Code or Commands
Write operations could cause memory corruption. In some cases, an adversary can modify control data such as return addresses in order to execute unexpected code.
Availability
Technical Impact: DoS: Crash, Exit, or Restart
Attempting to access out-of-range, invalid, or unauthorized memory could cause the product to crash.
Other
Technical Impact: Unexpected State
Subsequent write operations can produce undefined or unexpected results.
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