spi controller driver

About this tag
The spi controller driver tag on WindowsForum.com covers Linux kernel driver issues, specifically the meson-spicc SPI controller driver. A recent thread discusses CVE-2026-31489, a double-put reference-counting bug in the driver's teardown path. The driver uses devm_spi_register_controller, which automatically drops the controller reference during cleanup, but the remove function also calls spi_controller_put, causing a double-put. This can lead to stability problems in production systems. The tag is relevant for developers and IT professionals working with Linux SPI drivers, kernel debugging, and hardware driver lifecycle management.

  1. 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...
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    • cve-2026-31489 devm managed cleanup linux kernel security spi controller driver
    • Replies: 0
    • Forum: Security Alerts