FKIE_CVE-2026-72062

Vulnerability from fkie_nvd - Published: 2026-08-15 06:21 - Updated: 2026-08-23 13:16
Severity
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1781172526d1092323af443fa03f00e6de560401
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/207d3ebf36f654a43a934addeb4d6775cb2dd667
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/877a243006788aaa586b2d087f27c9f3628071b0
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a60a40c9ba30edd06d3fb4215fdf430ed968728e
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/bddf9314a57a243dd11ed945ba11e146e331257e
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d3b9026ef78da3018a7d2c5a9c9d611de6d45c47
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpio/gpio-mt7621.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "bddf9314a57a243dd11ed945ba11e146e331257e",
              "status": "affected",
              "version": "4ba9c3afda41213ec98c30053e32963892e6dc7c",
              "versionType": "git"
            },
            {
              "lessThan": "207d3ebf36f654a43a934addeb4d6775cb2dd667",
              "status": "affected",
              "version": "4ba9c3afda41213ec98c30053e32963892e6dc7c",
              "versionType": "git"
            },
            {
              "lessThan": "877a243006788aaa586b2d087f27c9f3628071b0",
              "status": "affected",
              "version": "4ba9c3afda41213ec98c30053e32963892e6dc7c",
              "versionType": "git"
            },
            {
              "lessThan": "d3b9026ef78da3018a7d2c5a9c9d611de6d45c47",
              "status": "affected",
              "version": "4ba9c3afda41213ec98c30053e32963892e6dc7c",
              "versionType": "git"
            },
            {
              "lessThan": "a60a40c9ba30edd06d3fb4215fdf430ed968728e",
              "status": "affected",
              "version": "4ba9c3afda41213ec98c30053e32963892e6dc7c",
              "versionType": "git"
            },
            {
              "lessThan": "1781172526d1092323af443fa03f00e6de560401",
              "status": "affected",
              "version": "4ba9c3afda41213ec98c30053e32963892e6dc7c",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpio/gpio-mt7621.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.19"
            },
            {
              "lessThan": "4.19",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.184",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.148",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.101",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.40",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.5",
              "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: 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": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/1781172526d1092323af443fa03f00e6de560401"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/207d3ebf36f654a43a934addeb4d6775cb2dd667"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/877a243006788aaa586b2d087f27c9f3628071b0"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/a60a40c9ba30edd06d3fb4215fdf430ed968728e"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/bddf9314a57a243dd11ed945ba11e146e331257e"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d3b9026ef78da3018a7d2c5a9c9d611de6d45c47"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



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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.

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