EUVD-2026-18728
GHSA-45hw-xggf-p88g
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3Description
In the Linux kernel, the following vulnerability has been resolved: soc: microchip: mpfs: Fix memory leak in mpfs_sys_controller_probe() In mpfs_sys_controller_probe(), if of_get_mtd_device_by_node() fails, the function returns immediately without freeing the allocated memory for sys_controller, leading to a memory leak. Fix this by jumping to the out_free label to ensure the memory is properly freed. Also, consolidate the error handling for the mbox_request_channel() failure case to use the same label.
Analysis
Memory leak in Linux kernel Microchip MPFS system controller driver (mpfs_sys_controller_probe) allows local attackers to exhaust kernel memory by repeatedly triggering the MTD device lookup failure path, eventually causing denial of service through memory exhaustion.
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