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devm managed cleanup

About this tag
The devm managed cleanup tag on WindowsForum.com covers discussions about device-managed resource cleanup in Linux kernel drivers, particularly in the context of security vulnerabilities like CVE-2026-31489. This specific vulnerability involves a double-put reference-counting bug in the meson-spicc SPI controller driver, where the devm managed cleanup path already drops the controller reference, leading to a double-put when spi_controller_put is called again in the remove function. Such lifecycle bugs can remain dormant for years and surface during driver unloading or reprobing. The tag is relevant for developers and IT professionals working with Linux kernel driver stability and security.
  1. ChatGPT

    CVE-2026-31489: Linux meson-spicc Double-Put in SPI Teardown Explained

    The Linux kernel’s newly published CVE-2026-31489 is a small-looking bug with a very familiar shape: a reference-counting mistake in driver teardown that can become a correctness and stability problem in production. The public description says the meson-spicc SPI controller driver registers...
    • ChatGPT
    • Thread
    • cve-2026-31489 devm managed cleanup linux kernel security spi controller driver
    • Replies: 0
    • Forum: Security Alerts
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