CVE-2026-80562

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-80562", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-26T14:34:25.767Z", "datePublished": "2026-08-26T14:37:27.171Z", "dateUpdated": "2026-08-27T12:40:17.967Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-27T12:40:17.967Z"}, "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."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/gpio/gpio-ml-ioh.c"], "versions": [{"version": "54be566317b6aece2389a95bb19ea209af9359be", "lessThan": "431b10133113537660a6090a2856b0d74d1b06de", "status": "affected", "versionType": "git"}, {"version": "54be566317b6aece2389a95bb19ea209af9359be", "lessThan": "359e6b1168c9a62a7bd214ace476aaa2d57eebe8", "status": "affected", "versionType": "git"}, {"version": "54be566317b6aece2389a95bb19ea209af9359be", "lessThan": "63d2230e5076c12f93d2a1d1bff2fbbf6cf32f3c", "status": "affected", "versionType": "git"}, {"version": "54be566317b6aece2389a95bb19ea209af9359be", "lessThan": "b6505a4cea45dd92eb753581b1ad9b524b5fcc34", "status": "affected", "versionType": "git"}, {"version": "54be566317b6aece2389a95bb19ea209af9359be", "lessThan": "84be002b40d30c56a91873b236e2d9001bbee363", "status": "affected", "versionType": "git"}, {"version": "54be566317b6aece2389a95bb19ea209af9359be", "lessThan": "bc7934d0acd4fc1c7e5b7c68debdb4a991121628", "status": "affected", "versionType": "git"}, {"version": "54be566317b6aece2389a95bb19ea209af9359be", "lessThan": "0559b86611c35d342dd48542ea26a9e437046bf6", "status": "affected", "versionType": "git"}, {"version": "54be566317b6aece2389a95bb19ea209af9359be", "lessThan": "600411ea1f2443fdf5b1af9b6480f616d7aff9d0", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/gpio/gpio-ml-ioh.c"], "versions": [{"version": "3.2", "status": "affected"}, {"version": "0", "lessThan": "3.2", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.267", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.218", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.185", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.154", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.106", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.46", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.10", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.2", "versionEndExcluding": "5.10.267"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.2", "versionEndExcluding": "5.15.218"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.2", "versionEndExcluding": "6.1.185"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.2", "versionEndExcluding": "6.6.154"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.2", "versionEndExcluding": "6.12.106"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.2", "versionEndExcluding": "6.18.46"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.2", "versionEndExcluding": "7.1.10"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.2", "versionEndExcluding": "7.2"}]}]}], "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"}}}}

{}

{"affected": [{"affectedData": [{"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"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "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."}], "id": "CVE-2026-80562", "lastModified": "2026-08-27T13:18:40.533", "metrics": {}, "published": "2026-08-26T15:17:11.183", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0559b86611c35d342dd48542ea26a9e437046bf6"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/359e6b1168c9a62a7bd214ace476aaa2d57eebe8"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/431b10133113537660a6090a2856b0d74d1b06de"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/600411ea1f2443fdf5b1af9b6480f616d7aff9d0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/63d2230e5076c12f93d2a1d1bff2fbbf6cf32f3c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/84be002b40d30c56a91873b236e2d9001bbee363"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b6505a4cea45dd92eb753581b1ad9b524b5fcc34"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/bc7934d0acd4fc1c7e5b7c68debdb4a991121628"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: gpio: ml-ioh: use raw_spinlock_t for the register lock", "id": "2524439", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2524439"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-821", "details": ["In the Linux kernel, the following vulnerability has been resolved:\ngpio: ml-ioh: use raw_spinlock_t for the register lock\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.\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.\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.", "A flaw was found in the Linux kernel's `gpio: ml-ioh` component. An incorrect spinlock type (`spinlock_t`) was used in interrupt handling routines where a non-sleeping lock (`raw_spinlock_t`) was required. This could lead to invalid lock acquisition, potentially causing system instability or a denial of service, especially in real-time kernel configurations."], "name": "CVE-2026-80562", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-08-26T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-80562\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-80562\nhttps://lore.kernel.org/linux-cve-announce/2026082610-CVE-2026-80562-30aa@gregkh/T"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[54be566317b6aece2389a95bb19ea209af9359be,bc7934d0acd4fc1c7e5b7c68debdb4a991121628)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[54be566317b6aece2389a95bb19ea209af9359be,0559b86611c35d342dd48542ea26a9e437046bf6)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[54be566317b6aece2389a95bb19ea209af9359be,600411ea1f2443fdf5b1af9b6480f616d7aff9d0)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "3.2"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,3.2)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.46,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.10,7.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-08-26T17:45:03.749105+00:00", "updated": "2026-08-28T08:30:17.069316+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-754", "CWE-821"]}