{"id":"CVE-2026-90410","title":"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_req…","summary":"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_req…","severity":"medium","vendor":"Linux","product":"Linux","affected":["Linux >= 5b3bb5963ff23a344062aba04937533a6f575761 < 29e37f768f35592e26477f703649bd2e6f18d857","Linux >= 5b3bb5963ff23a344062aba04937533a6f575761 < f9452eba71fbfcee55c0b8e030ee3615e9f75f65","Linux >= 5b3bb5963ff23a344062aba04937533a6f575761 < 3b544072185c3d19ddec621ec9f6897ea2d10ee3","Linux >= 5b3bb5963ff23a344062aba04937533a6f575761 < 1a7958ce58dc95b06615df00c120ece4eb9ccc86","Linux >= 5b3bb5963ff23a344062aba04937533a6f575761 < ea408a05dc8f18b4a184b88d6e19d2fd1acc1527","Linux 3.14"],"published":"2026-09-17","updated":"2026-09-17","sourceUpdated":"2026-09-17T17:17:40.910","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-90410","references":[{"url":"https://git.kernel.org/stable/c/1a7958ce58dc95b06615df00c120ece4eb9ccc86","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/29e37f768f35592e26477f703649bd2e6f18d857","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/3b544072185c3d19ddec621ec9f6897ea2d10ee3","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/ea408a05dc8f18b4a184b88d6e19d2fd1acc1527","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/f9452eba71fbfcee55c0b8e030ee3615e9f75f65","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-90410.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-90410"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2536272"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-90410"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-90410"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-90410.mbox"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"ingestedAt":"2026-09-17T16:21:47.797Z","epss":0.00209,"epssPercentile":0.1096,"cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cvssSource":"vendor","cwe":["CWE-825"],"slug":"CVE-2026-90410","body":"## Overview\n\nIn 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · updated 2026-10-20 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-90410.json)","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":225597,"id":"CVE-2026-90410","ts":1792498310057,"field":"cvss","old":null,"new":"5.5"},{"seq":225596,"id":"CVE-2026-90410","ts":1792498310057,"field":"severity","old":"none","new":"medium"}]}