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).

Red Hat Enterprise Linux 10 Not affected kernel Red Hat Enterprise Linux 6 Not affected kernel Red Hat Enterprise Linux 7 Not affected kernel Red Hat Enterprise Linux 7 Not affected kernel-rt Red Hat Enterprise Linux 8 Not affected kernel Red Hat Enterprise Linux 8 Not affected kernel-rt Red Hat Enterprise Linux 9 Not affected kernel Red Hat Enterprise Linux 9 Not affected kernel-rt https://www.cve.org/CVERecord?id=CVE-2026-46141 https://nvd.nist.gov/vuln/detail/CVE-2026-46141 https://lore.kernel.org/linux-cve-announce/2026052820-CVE-2026-46141-075f@gregkh/T