{"api_version":"1","generated_at":"2026-09-18T18:31:48+00:00","cve":"CVE-2026-90433","urls":{"html":"https://cve.report/CVE-2026-90433","api":"https://cve.report/api/cve/CVE-2026-90433.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-90433","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-90433"},"summary":{"title":"spi: oc-tiny: switch to managed controller allocation","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nspi: oc-tiny: 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_irq().  During removal,\nspi_bitbang_stop() only unregisters the controller; the subsequent\nspi_controller_put() then frees the controller together with its\nembedded driver-private devdata, which is the IRQ handler's dev_id.  The\ndevm_request_irq() release action (free_irq()), which drains the\nhandler, does not run until after .remove() returns.  A late or latched\ninterrupt can therefore reach tiny_spi_irq() and dereference\nalready-freed memory (e.g. hw->base).\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\nThis issue was found by an in-house static analysis tool.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-09-17 17:17:48","updated_at":"2026-09-17 17:17:48"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/d710f43ce30975d197f73c543bfe47b958d8ba17","name":"https://git.kernel.org/stable/c/d710f43ce30975d197f73c543bfe47b958d8ba17","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/1cd16c8d68f58e54abb8f331d05469237200631f","name":"https://git.kernel.org/stable/c/1cd16c8d68f58e54abb8f331d05469237200631f","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/0260c94453a08491640e61f8cf0c384edbe7bd11","name":"https://git.kernel.org/stable/c/0260c94453a08491640e61f8cf0c384edbe7bd11","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/ef5cc4a8c088d05549f71950a72b5deff5000fd7","name":"https://git.kernel.org/stable/c/ef5cc4a8c088d05549f71950a72b5deff5000fd7","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-90433","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-90433","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected ce792580ea2ce6f7259b45124e9ccc4574c31606 0260c94453a08491640e61f8cf0c384edbe7bd11 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected ce792580ea2ce6f7259b45124e9ccc4574c31606 ef5cc4a8c088d05549f71950a72b5deff5000fd7 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected ce792580ea2ce6f7259b45124e9ccc4574c31606 1cd16c8d68f58e54abb8f331d05469237200631f git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected ce792580ea2ce6f7259b45124e9ccc4574c31606 d710f43ce30975d197f73c543bfe47b958d8ba17 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 2.6.39","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 2.6.39 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.110 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.52 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2.6 7.2.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.3-rc1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/spi/spi-oc-tiny.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"0260c94453a08491640e61f8cf0c384edbe7bd11","status":"affected","version":"ce792580ea2ce6f7259b45124e9ccc4574c31606","versionType":"git"},{"lessThan":"ef5cc4a8c088d05549f71950a72b5deff5000fd7","status":"affected","version":"ce792580ea2ce6f7259b45124e9ccc4574c31606","versionType":"git"},{"lessThan":"1cd16c8d68f58e54abb8f331d05469237200631f","status":"affected","version":"ce792580ea2ce6f7259b45124e9ccc4574c31606","versionType":"git"},{"lessThan":"d710f43ce30975d197f73c543bfe47b958d8ba17","status":"affected","version":"ce792580ea2ce6f7259b45124e9ccc4574c31606","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/spi/spi-oc-tiny.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.39"},{"lessThan":"2.6.39","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.110","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.52","versionType":"semver"},{"lessThanOrEqual":"7.2.*","status":"unaffected","version":"7.2.6","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.3-rc1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.110","versionStartIncluding":"2.6.39","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.52","versionStartIncluding":"2.6.39","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.6","versionStartIncluding":"2.6.39","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3-rc1","versionStartIncluding":"2.6.39","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nspi: oc-tiny: 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_irq().  During removal,\nspi_bitbang_stop() only unregisters the controller; the subsequent\nspi_controller_put() then frees the controller together with its\nembedded driver-private devdata, which is the IRQ handler's dev_id.  The\ndevm_request_irq() release action (free_irq()), which drains the\nhandler, does not run until after .remove() returns.  A late or latched\ninterrupt can therefore reach tiny_spi_irq() and dereference\nalready-freed memory (e.g. hw->base).\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\nThis issue was found by an in-house static analysis tool."}],"providerMetadata":{"dateUpdated":"2026-09-17T16:09:53.085Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/0260c94453a08491640e61f8cf0c384edbe7bd11"},{"url":"https://git.kernel.org/stable/c/ef5cc4a8c088d05549f71950a72b5deff5000fd7"},{"url":"https://git.kernel.org/stable/c/1cd16c8d68f58e54abb8f331d05469237200631f"},{"url":"https://git.kernel.org/stable/c/d710f43ce30975d197f73c543bfe47b958d8ba17"}],"title":"spi: oc-tiny: switch to managed controller allocation","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-90433","datePublished":"2026-09-17T16:09:53.085Z","dateReserved":"2026-09-11T19:38:34.815Z","dateUpdated":"2026-09-17T16:09:53.085Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-09-17 17:17:48","lastModifiedDate":"2026-09-17 17:17:48","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"90433","Ordinal":"1","Title":"spi: oc-tiny: switch to managed controller allocation","CVE":"CVE-2026-90433","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"90433","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nspi: oc-tiny: 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_irq().  During removal,\nspi_bitbang_stop() only unregisters the controller; the subsequent\nspi_controller_put() then frees the controller together with its\nembedded driver-private devdata, which is the IRQ handler's dev_id.  The\ndevm_request_irq() release action (free_irq()), which drains the\nhandler, does not run until after .remove() returns.  A late or latched\ninterrupt can therefore reach tiny_spi_irq() and dereference\nalready-freed memory (e.g. hw->base).\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\nThis issue was found by an in-house static analysis tool.","Type":"Description","Title":"spi: oc-tiny: switch to managed controller allocation"}]}}}