CVE-2025-37842: spi: fsl-qspi: use devm function instead of driver remove

First published: Fri May 09 2025(Updated: )

In the Linux kernel, the following vulnerability has been resolved: spi: fsl-qspi: use devm function instead of driver remove Driver use devm APIs to manage clk/irq/resources and register the spi controller, but the legacy remove function will be called first during device detach and trigger kernel panic. Drop the remove function and use devm_add_action_or_reset() for driver cleanup to ensure the release sequence. Trigger kernel panic on i.MX8MQ by echo 30bb0000.spi >/sys/bus/platform/drivers/fsl-quadspi/unbind

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

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