{"cve":"CVE-2026-90410","nvd":{"published":"2026-09-17T17:17:40.910","modified":"2026-10-19T09:19:35.180","status":"Received","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nspi: davinci: switch to managed controller allocation\n\nThe controller is allocated with the non-managed spi_alloc_host() while\nthe interrupt is registered with devm_request_threaded_irq().  During\nremoval, spi_bitbang_stop() only unregisters the controller; the\nsubsequent spi_controller_put() then frees the controller together with\nits embedded davinci_spi devdata, which is the IRQ handler's dev_id.\nThe devm_request_threaded_irq() release action (free_irq()), which\ndrains the handler, does not run until after .remove() returns.  A late\nor latched interrupt can therefore reach davinci_spi_irq() and\ndereference already-freed memory.\n\nSwitch to devm_spi_alloc_host() so that the devres LIFO order releases\nthe controller only after free_irq() has drained the handler, and drop\nthe now-redundant spi_controller_put() from .remove().  The probe error\npath is simplified to direct returns.\n\nThe clock is acquired with devm_clk_get_enabled(), which is registered\nafter the IRQ and thus released before it by the devres LIFO order.\nDrain the interrupt explicitly with devm_free_irq() before disabling the\ncontroller so that a late interrupt cannot access the registers of a\nclock-gated controller.\n\nThis issue was found by an in-house static analysis tool.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/1a7958ce58dc95b06615df00c120ece4eb9ccc86","https://git.kernel.org/stable/c/29e37f768f35592e26477f703649bd2e6f18d857","https://git.kernel.org/stable/c/3b544072185c3d19ddec621ec9f6897ea2d10ee3","https://git.kernel.org/stable/c/ea408a05dc8f18b4a184b88d6e19d2fd1acc1527","https://git.kernel.org/stable/c/f9452eba71fbfcee55c0b8e030ee3615e9f75f65"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:55:23.253742848+00:00"},"epss":{"cve":"CVE-2026-90410","score":0.00209,"percentile":0.10938,"date":"2026-10-25"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}