CVE-2026-46141

A flaw was found in the Linux kernel's powerpc/xive interrupt controller. This vulnerability, identified as a kernel memory leak (kmemleak), occurs when allocating Message Signaled Interrupts eXtended (MSI-X) vectors for NVMe devices. Due to an incorrect lookup of interrupt data, the xive_irq_data structure is not properly freed, leading to a gradual consumption of kernel memory. Over time, this memory leak could potentially lead to system instability or a denial of service (DoS).