CVE-2026-72062 (GCVE-0-2026-72062)

Vulnerability from cvelistv5 – Published: 2026-08-15 05:52 – Updated: 2026-08-23 12:46
VLAI
Title
gpio: mt7621: avoid corruption of shared interrupt trigger state
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.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 4ba9c3afda41213ec98c30053e32963892e6dc7c , < bddf9314a57a243dd11ed945ba11e146e331257e (git)
Affected: 4ba9c3afda41213ec98c30053e32963892e6dc7c , < 207d3ebf36f654a43a934addeb4d6775cb2dd667 (git)
Affected: 4ba9c3afda41213ec98c30053e32963892e6dc7c , < 877a243006788aaa586b2d087f27c9f3628071b0 (git)
Affected: 4ba9c3afda41213ec98c30053e32963892e6dc7c , < d3b9026ef78da3018a7d2c5a9c9d611de6d45c47 (git)
Affected: 4ba9c3afda41213ec98c30053e32963892e6dc7c , < a60a40c9ba30edd06d3fb4215fdf430ed968728e (git)
Affected: 4ba9c3afda41213ec98c30053e32963892e6dc7c , < 1781172526d1092323af443fa03f00e6de560401 (git)
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Linux Linux Affected: 4.19
Unaffected: 0 , < 4.19 (semver)
Unaffected: 6.1.184 , ≤ 6.1.* (semver)
Unaffected: 6.6.148 , ≤ 6.6.* (semver)
Unaffected: 6.12.101 , ≤ 6.12.* (semver)
Unaffected: 6.18.40 , ≤ 6.18.* (semver)
Unaffected: 7.1.5 , ≤ 7.1.* (semver)
Unaffected: 7.2 , ≤ * (original_commit_for_fix)
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{
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          "product": "Linux",
          "programFiles": [
            "drivers/gpio/gpio-mt7621.c"
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          "vendor": "Linux",
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              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.6.148",
              "versionType": "semver"
            },
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              "status": "unaffected",
              "version": "6.12.101",
              "versionType": "semver"
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            {
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              "status": "unaffected",
              "version": "6.18.40",
              "versionType": "semver"
            },
            {
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              "status": "unaffected",
              "version": "7.1.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
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        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ngpio: mt7621: avoid corruption of shared interrupt trigger state\n\nThe bank-shared fields like \u0027rising\u0027 and \u0027falling\u0027 are modified using\nnon-atomic read-modify-write operations. Since every gpio chip instance\nrepresents an entire bank of 32 pins, if \u0027mediatek_gpio_irq_type()\u0027 is\ncalled concurrently for different IRQs on the same bank a possible overwrite\nof each other\u0027s configuration is possible. Thus, protect this state with\n\u0027gpio_generic_lock_irqsave\u0027 lock in the same way it is handled in irp_chip\n\u0027mediatek_gpio_irq_mask()\u0027 and \u0027mediatek_gpio_irq_unmask()\u0027 callbacks."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-23T12:46:38.586Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
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          "url": "https://git.kernel.org/stable/c/bddf9314a57a243dd11ed945ba11e146e331257e"
        },
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          "url": "https://git.kernel.org/stable/c/207d3ebf36f654a43a934addeb4d6775cb2dd667"
        },
        {
          "url": "https://git.kernel.org/stable/c/877a243006788aaa586b2d087f27c9f3628071b0"
        },
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        },
        {
          "url": "https://git.kernel.org/stable/c/a60a40c9ba30edd06d3fb4215fdf430ed968728e"
        },
        {
          "url": "https://git.kernel.org/stable/c/1781172526d1092323af443fa03f00e6de560401"
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      "title": "gpio: mt7621: avoid corruption of shared interrupt trigger state",
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    "cveId": "CVE-2026-72062",
    "datePublished": "2026-08-15T05:52:16.564Z",
    "dateReserved": "2026-08-09T03:40:39.903Z",
    "dateUpdated": "2026-08-23T12:46:38.586Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.2",
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      "date": "2026-09-23",
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        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ngpio: mt7621: avoid corruption of shared interrupt trigger state\n\nThe bank-shared fields like \u0027rising\u0027 and \u0027falling\u0027 are modified using\nnon-atomic read-modify-write operations. Since every gpio chip instance\nrepresents an entire bank of 32 pins, if \u0027mediatek_gpio_irq_type()\u0027 is\ncalled concurrently for different IRQs on the same bank a possible overwrite\nof each other\u0027s configuration is possible. Thus, protect this state with\n\u0027gpio_generic_lock_irqsave\u0027 lock in the same way it is handled in irp_chip\n\u0027mediatek_gpio_irq_mask()\u0027 and \u0027mediatek_gpio_irq_unmask()\u0027 callbacks."
          }
        ],
        "id": "CVE-2026-72062",
        "lastModified": "2026-08-23T13:16:38.840",
        "metrics": {},
        "published": "2026-08-15T06:21:15.757",
        "references": [
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            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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        "vulnStatus": "Received"
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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-08-17T19:29:35+00:00",
      "cve": "CVE-2026-72062",
      "id": "CVE-2026-72062",
      "initial_release_date": "2026-08-15T00:00:00+00:00",
      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: gpio: mt7621: avoid corruption of shared interrupt trigger state",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-72062.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-10T02:10:29Z",
      "cve": "CVE-2026-72062",
      "id": "CVE-2026-72062",
      "initial_release_date": "2026-08-28T01:01:40Z",
      "product_status:known_affected": "228",
      "product_status:known_not_affected": "134",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-72062",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-72062.json",
      "version": "3"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.