CVE-2026-80562gpio: ml-ioh: use raw_spinlock_t for the register lock
- —Not scoredno CVSS score yet
- 0.18%Exploitation in 30 daysEPSS · top 92% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: gpio: ml-ioh: use raw_spinlock_t for the register lock ioh_irq_type() is registered as the irq_chip .irq_set_type callback and takes chip->spinlock with spin_lock_irqsave(). This callback is reached from __setup_irq() -> __irq_set_trigger() -> chip->irq_set_type() while the caller holds desc->lock, a raw_spinlock_t, with hardirqs disabled. That context is not sleepable, but on PREEMPT_RT a regular spinlock_t is an rtmutex-backed sleeping lock, so acquiring it there is invalid. ioh_irq_enable() and ioh_irq_disable() take the same lock from the .irq_enable/.irq_disable callbacks, which are likewise invoked with desc->lock held. Convert the register lock to raw_spinlock_t. The same lock also serializes the GPIO direction/value callbacks and the suspend/resume register save/restore, and those critical sections only perform short sequences of MMIO register accesses (ioread32()/iowrite32()); the .irq_set_type callback additionally emits a dev_warn() on an unsupported type. None of these are sleepable operations, so keeping this register lock non-sleeping is appropriate for the irqchip callbacks and does not change the GPIO-side locking contract. This is the same fix as commit a02b8950d619 ("gpio: pch: use raw_spinlock_t for the register lock"); this driver shares the same structure as gpio-pch.
Timeline
ID reserved
By Linux
Published
- 1 day later
· 1 day later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Received.
- EPSS (exploitation in 30 days)
- 0.18% · top 92% of all CVEs (14 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected 54be566317b6aece2389a95bb19ea209af9359be – < 431b10133113537660a6090a2856b0d74d1b06de
- affected 54be566317b6aece2389a95bb19ea209af9359be – < 359e6b1168c9a62a7bd214ace476aaa2d57eebe8
- affected 54be566317b6aece2389a95bb19ea209af9359be – < 63d2230e5076c12f93d2a1d1bff2fbbf6cf32f3c
- affected 54be566317b6aece2389a95bb19ea209af9359be – < b6505a4cea45dd92eb753581b1ad9b524b5fcc34
- affected 54be566317b6aece2389a95bb19ea209af9359be – < 84be002b40d30c56a91873b236e2d9001bbee363
- affected 54be566317b6aece2389a95bb19ea209af9359be – < bc7934d0acd4fc1c7e5b7c68debdb4a991121628
- affected 54be566317b6aece2389a95bb19ea209af9359be – < 0559b86611c35d342dd48542ea26a9e437046bf6
- affected 54be566317b6aece2389a95bb19ea209af9359be – < 600411ea1f2443fdf5b1af9b6480f616d7aff9d0
- affected 3.2
- unaffected < 3.2
- unaffected 5.10.267 – ≤ 5.10.*
- unaffected 5.15.218 – ≤ 5.15.*
- unaffected 6.1.185 – ≤ 6.1.*
- unaffected 6.6.154 – ≤ 6.6.*
- unaffected 6.12.106 – ≤ 6.12.*
- unaffected 6.18.46 – ≤ 6.18.*
- unaffected 7.1.10 – ≤ 7.1.*
- unaffected 7.2 – ≤ *
References
References8
- https://git.kernel.org/stable/c/431b10133113537660a6090a2856b0d74d1b06de (opens in a new tab)
- https://git.kernel.org/stable/c/359e6b1168c9a62a7bd214ace476aaa2d57eebe8 (opens in a new tab)
- https://git.kernel.org/stable/c/63d2230e5076c12f93d2a1d1bff2fbbf6cf32f3c (opens in a new tab)
- https://git.kernel.org/stable/c/b6505a4cea45dd92eb753581b1ad9b524b5fcc34 (opens in a new tab)
- https://git.kernel.org/stable/c/84be002b40d30c56a91873b236e2d9001bbee363 (opens in a new tab)
- https://git.kernel.org/stable/c/bc7934d0acd4fc1c7e5b7c68debdb4a991121628 (opens in a new tab)
- https://git.kernel.org/stable/c/0559b86611c35d342dd48542ea26a9e437046bf6 (opens in a new tab)
- https://git.kernel.org/stable/c/600411ea1f2443fdf5b1af9b6480f616d7aff9d0 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-66477 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://cveledger.app/cve/CVE-2026-80562)Record last updated .