{"api_version":"1","generated_at":"2026-08-27T14:57:29+00:00","cve":"CVE-2026-80562","urls":{"html":"https://cve.report/CVE-2026-80562","api":"https://cve.report/api/cve/CVE-2026-80562.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-80562","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-80562"},"summary":{"title":"gpio: ml-ioh: use raw_spinlock_t for the register lock","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ngpio: ml-ioh: use raw_spinlock_t for the register lock\n\nioh_irq_type() is registered as the irq_chip .irq_set_type callback and\ntakes chip->spinlock with spin_lock_irqsave().  This callback is reached\nfrom __setup_irq() -> __irq_set_trigger() -> chip->irq_set_type() while\nthe caller holds desc->lock, a raw_spinlock_t, with hardirqs disabled.\nThat context is not sleepable, but on PREEMPT_RT a regular spinlock_t is\nan rtmutex-backed sleeping lock, so acquiring it there is invalid.\nioh_irq_enable() and ioh_irq_disable() take the same lock from the\n.irq_enable/.irq_disable callbacks, which are likewise invoked with\ndesc->lock held.\n\nConvert the register lock to raw_spinlock_t.  The same lock also\nserializes the GPIO direction/value callbacks and the suspend/resume\nregister save/restore, and those critical sections only perform short\nsequences of MMIO register accesses (ioread32()/iowrite32()); the\n.irq_set_type callback additionally emits a dev_warn() on an unsupported\ntype.  None of these are sleepable operations, so keeping this register\nlock non-sleeping is appropriate for the irqchip callbacks and does not\nchange the GPIO-side locking contract.\n\nThis is the same fix as commit a02b8950d619 (\"gpio: pch: use\nraw_spinlock_t for the register lock\"); this driver shares the same\nstructure as gpio-pch.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-08-26 15:17:11","updated_at":"2026-08-27 13:18:40"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/bc7934d0acd4fc1c7e5b7c68debdb4a991121628","name":"https://git.kernel.org/stable/c/bc7934d0acd4fc1c7e5b7c68debdb4a991121628","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/0559b86611c35d342dd48542ea26a9e437046bf6","name":"https://git.kernel.org/stable/c/0559b86611c35d342dd48542ea26a9e437046bf6","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/431b10133113537660a6090a2856b0d74d1b06de","name":"https://git.kernel.org/stable/c/431b10133113537660a6090a2856b0d74d1b06de","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/600411ea1f2443fdf5b1af9b6480f616d7aff9d0","name":"https://git.kernel.org/stable/c/600411ea1f2443fdf5b1af9b6480f616d7aff9d0","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/359e6b1168c9a62a7bd214ace476aaa2d57eebe8","name":"https://git.kernel.org/stable/c/359e6b1168c9a62a7bd214ace476aaa2d57eebe8","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/84be002b40d30c56a91873b236e2d9001bbee363","name":"https://git.kernel.org/stable/c/84be002b40d30c56a91873b236e2d9001bbee363","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/b6505a4cea45dd92eb753581b1ad9b524b5fcc34","name":"https://git.kernel.org/stable/c/b6505a4cea45dd92eb753581b1ad9b524b5fcc34","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/63d2230e5076c12f93d2a1d1bff2fbbf6cf32f3c","name":"https://git.kernel.org/stable/c/63d2230e5076c12f93d2a1d1bff2fbbf6cf32f3c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-80562","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-80562","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 54be566317b6aece2389a95bb19ea209af9359be 431b10133113537660a6090a2856b0d74d1b06de git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 54be566317b6aece2389a95bb19ea209af9359be 359e6b1168c9a62a7bd214ace476aaa2d57eebe8 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 54be566317b6aece2389a95bb19ea209af9359be 63d2230e5076c12f93d2a1d1bff2fbbf6cf32f3c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 54be566317b6aece2389a95bb19ea209af9359be b6505a4cea45dd92eb753581b1ad9b524b5fcc34 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 54be566317b6aece2389a95bb19ea209af9359be 84be002b40d30c56a91873b236e2d9001bbee363 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 54be566317b6aece2389a95bb19ea209af9359be bc7934d0acd4fc1c7e5b7c68debdb4a991121628 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 54be566317b6aece2389a95bb19ea209af9359be 0559b86611c35d342dd48542ea26a9e437046bf6 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 54be566317b6aece2389a95bb19ea209af9359be 600411ea1f2443fdf5b1af9b6480f616d7aff9d0 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3.2","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 3.2 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.10.267 5.10.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.218 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.185 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.154 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.106 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.46 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.10 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2 * 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/gpio/gpio-ml-ioh.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"431b10133113537660a6090a2856b0d74d1b06de","status":"affected","version":"54be566317b6aece2389a95bb19ea209af9359be","versionType":"git"},{"lessThan":"359e6b1168c9a62a7bd214ace476aaa2d57eebe8","status":"affected","version":"54be566317b6aece2389a95bb19ea209af9359be","versionType":"git"},{"lessThan":"63d2230e5076c12f93d2a1d1bff2fbbf6cf32f3c","status":"affected","version":"54be566317b6aece2389a95bb19ea209af9359be","versionType":"git"},{"lessThan":"b6505a4cea45dd92eb753581b1ad9b524b5fcc34","status":"affected","version":"54be566317b6aece2389a95bb19ea209af9359be","versionType":"git"},{"lessThan":"84be002b40d30c56a91873b236e2d9001bbee363","status":"affected","version":"54be566317b6aece2389a95bb19ea209af9359be","versionType":"git"},{"lessThan":"bc7934d0acd4fc1c7e5b7c68debdb4a991121628","status":"affected","version":"54be566317b6aece2389a95bb19ea209af9359be","versionType":"git"},{"lessThan":"0559b86611c35d342dd48542ea26a9e437046bf6","status":"affected","version":"54be566317b6aece2389a95bb19ea209af9359be","versionType":"git"},{"lessThan":"600411ea1f2443fdf5b1af9b6480f616d7aff9d0","status":"affected","version":"54be566317b6aece2389a95bb19ea209af9359be","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/gpio/gpio-ml-ioh.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"3.2"},{"lessThan":"3.2","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.267","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.218","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.185","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.154","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.106","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.46","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.10","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.267","versionStartIncluding":"3.2","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.218","versionStartIncluding":"3.2","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.185","versionStartIncluding":"3.2","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.154","versionStartIncluding":"3.2","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.106","versionStartIncluding":"3.2","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.46","versionStartIncluding":"3.2","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.10","versionStartIncluding":"3.2","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2","versionStartIncluding":"3.2","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ngpio: ml-ioh: use raw_spinlock_t for the register lock\n\nioh_irq_type() is registered as the irq_chip .irq_set_type callback and\ntakes chip->spinlock with spin_lock_irqsave().  This callback is reached\nfrom __setup_irq() -> __irq_set_trigger() -> chip->irq_set_type() while\nthe caller holds desc->lock, a raw_spinlock_t, with hardirqs disabled.\nThat context is not sleepable, but on PREEMPT_RT a regular spinlock_t is\nan rtmutex-backed sleeping lock, so acquiring it there is invalid.\nioh_irq_enable() and ioh_irq_disable() take the same lock from the\n.irq_enable/.irq_disable callbacks, which are likewise invoked with\ndesc->lock held.\n\nConvert the register lock to raw_spinlock_t.  The same lock also\nserializes the GPIO direction/value callbacks and the suspend/resume\nregister save/restore, and those critical sections only perform short\nsequences of MMIO register accesses (ioread32()/iowrite32()); the\n.irq_set_type callback additionally emits a dev_warn() on an unsupported\ntype.  None of these are sleepable operations, so keeping this register\nlock non-sleeping is appropriate for the irqchip callbacks and does not\nchange the GPIO-side locking contract.\n\nThis is the same fix as commit a02b8950d619 (\"gpio: pch: use\nraw_spinlock_t for the register lock\"); this driver shares the same\nstructure as gpio-pch."}],"providerMetadata":{"dateUpdated":"2026-08-27T12:40:17.967Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/431b10133113537660a6090a2856b0d74d1b06de"},{"url":"https://git.kernel.org/stable/c/359e6b1168c9a62a7bd214ace476aaa2d57eebe8"},{"url":"https://git.kernel.org/stable/c/63d2230e5076c12f93d2a1d1bff2fbbf6cf32f3c"},{"url":"https://git.kernel.org/stable/c/b6505a4cea45dd92eb753581b1ad9b524b5fcc34"},{"url":"https://git.kernel.org/stable/c/84be002b40d30c56a91873b236e2d9001bbee363"},{"url":"https://git.kernel.org/stable/c/bc7934d0acd4fc1c7e5b7c68debdb4a991121628"},{"url":"https://git.kernel.org/stable/c/0559b86611c35d342dd48542ea26a9e437046bf6"},{"url":"https://git.kernel.org/stable/c/600411ea1f2443fdf5b1af9b6480f616d7aff9d0"}],"title":"gpio: ml-ioh: use raw_spinlock_t for the register lock","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-80562","datePublished":"2026-08-26T14:37:27.171Z","dateReserved":"2026-08-26T14:34:25.767Z","dateUpdated":"2026-08-27T12:40:17.967Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-26 15:17:11","lastModifiedDate":"2026-08-27 13:18:40","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"80562","Ordinal":"1","Title":"gpio: ml-ioh: use raw_spinlock_t for the register lock","CVE":"CVE-2026-80562","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"80562","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\ngpio: ml-ioh: use raw_spinlock_t for the register lock\n\nioh_irq_type() is registered as the irq_chip .irq_set_type callback and\ntakes chip->spinlock with spin_lock_irqsave().  This callback is reached\nfrom __setup_irq() -> __irq_set_trigger() -> chip->irq_set_type() while\nthe caller holds desc->lock, a raw_spinlock_t, with hardirqs disabled.\nThat context is not sleepable, but on PREEMPT_RT a regular spinlock_t is\nan rtmutex-backed sleeping lock, so acquiring it there is invalid.\nioh_irq_enable() and ioh_irq_disable() take the same lock from the\n.irq_enable/.irq_disable callbacks, which are likewise invoked with\ndesc->lock held.\n\nConvert the register lock to raw_spinlock_t.  The same lock also\nserializes the GPIO direction/value callbacks and the suspend/resume\nregister save/restore, and those critical sections only perform short\nsequences of MMIO register accesses (ioread32()/iowrite32()); the\n.irq_set_type callback additionally emits a dev_warn() on an unsupported\ntype.  None of these are sleepable operations, so keeping this register\nlock non-sleeping is appropriate for the irqchip callbacks and does not\nchange the GPIO-side locking contract.\n\nThis is the same fix as commit a02b8950d619 (\"gpio: pch: use\nraw_spinlock_t for the register lock\"); this driver shares the same\nstructure as gpio-pch.","Type":"Description","Title":"gpio: ml-ioh: use raw_spinlock_t for the register lock"}]}}}