The Linux kernel’s GPIB driver contains a memory leak that occurs when a GPIB USB adapter is disconnected. The driver retains references to USB devices after a successful match, never releasing them. Over time, repeated connect and disconnect operations increase kernel memory consumption until a critical level is reached, potentially leading to kernel instability or a system-wide slowdown.

The flaw is present in the Linux kernel itself; no particular vendor or version is specified, so every kernel release that has not incorporated the patch could be affected. Users of any Linux system running a kernel that still includes the buggy GPIB driver are at risk.

No CVSS or EPSS score is available and the vulnerability is not listed in the CISA KEV catalog. The leak requires repeated disconnects of GPIB USB adapters to accumulate a significant memory drain, making immediate exploitation unlikely. However, sustained use of GPIB adapters over time can gradually degrade system reliability and may lead to a denial of service through kernel memory exhaustion.