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

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-05-09 · updated 2026-10-30

Description

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

Affected products

Linux kernel: from 5.2 before 6.6.105; from 6.7 before 6.12.36; from 6.13 before 6.13.12; from 6.14 before 6.14.3 — fixed in 6.6.105, 6.12.36, 6.13.12, 6.14.3
Linux: 5.2 — fixed in 6.15

How to fix

Upgrade to a fixed version: Linux kernel 6.6.105, 6.12.36, 6.13.12, 6.14.3; Linux 6.15. Check the vendor advisory for mitigations.

References

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