CVE-2024-55639: net: renesas: rswitch: avoid use-after-put for a device tree node

First published: Sat Jan 11 2025(Updated: )

In the Linux kernel, the following vulnerability has been resolved: net: renesas: rswitch: avoid use-after-put for a device tree node The device tree node saved in the rswitch_device structure is used at several driver locations. So passing this node to of_node_put() after the first use is wrong. Move of_node_put() for this node to exit paths.

Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

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