gpio: mt7621: avoid corruption of shared interrupt trigger state
Key facts
- Attack vector
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- Privileges required
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- User interaction
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- Attack complexity
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- Impact type
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- Confidentiality · integrity · availability
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- Fix status
- Fixed
No CVSS vector from any source. Fix status from CNA.
Summary
In the Linux kernel, the following vulnerability has been resolved: gpio: mt7621: avoid corruption of shared interrupt trigger state The bank-shared fields like 'rising' and 'falling' are modified using non-atomic read-modify-write operations. Since every gpio chip instance represents an entire bank of 32 pins, if 'mediatek_gpio_irq_type()' is called concurrently for different IRQs on the same bank a possible overwrite of each other's configuration is possible. Thus, protect this state with 'gpio_generic_lock_irqsave' lock in the same way it is handled in irp_chip 'mediatek_gpio_irq_mask()' and 'mediatek_gpio_irq_unmask()' callbacks.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
- Fix · CNA Linux (Linux) Fixed in 6.1.184, 6.6.148, 6.12.101, 6.18.40, 7.1.5, 7.2
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
Not affected: 5 products
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2026-72062
- 2026-10-03 Alias added: GHSA-hvv6-qvxj-4xmv
References
Other 6
- https://git.kernel.org/stable/c/bddf9314a57a243dd11ed945ba11e146e331257e
- https://git.kernel.org/stable/c/207d3ebf36f654a43a934addeb4d6775cb2dd667
- https://git.kernel.org/stable/c/877a243006788aaa586b2d087f27c9f3628071b0
- https://git.kernel.org/stable/c/d3b9026ef78da3018a7d2c5a9c9d611de6d45c47
- https://git.kernel.org/stable/c/a60a40c9ba30edd06d3fb4215fdf430ed968728e
- https://git.kernel.org/stable/c/1781172526d1092323af443fa03f00e6de560401
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Sources
- CVE-2026-72062 · CVE Program
- CVE-2026-72062 · NVD
- FIRST EPSS
- GHSA-hvv6-qvxj-4xmv · GitHub Advisory Database · CC BY 4.0
- CVE-2026-72062 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences