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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{
  "containers": {
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      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpio/gpio-mt7621.c"
          ],
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              "version": "7.1.5",
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              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
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        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
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              "cpeMatch": [
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              "negate": false,
              "operator": "OR"
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      "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."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-23T12:46:38.586Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/bddf9314a57a243dd11ed945ba11e146e331257e"
        },
        {
          "url": "https://git.kernel.org/stable/c/207d3ebf36f654a43a934addeb4d6775cb2dd667"
        },
        {
          "url": "https://git.kernel.org/stable/c/877a243006788aaa586b2d087f27c9f3628071b0"
        },
        {
          "url": "https://git.kernel.org/stable/c/d3b9026ef78da3018a7d2c5a9c9d611de6d45c47"
        },
        {
          "url": "https://git.kernel.org/stable/c/a60a40c9ba30edd06d3fb4215fdf430ed968728e"
        },
        {
          "url": "https://git.kernel.org/stable/c/1781172526d1092323af443fa03f00e6de560401"
        }
      ],
      "title": "gpio: mt7621: avoid corruption of shared interrupt trigger state",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "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"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-72062",
      "date": "2026-08-24",
      "epss": "0.00215",
      "percentile": "0.11695"
    },
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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"
    }
  }
}



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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.


Detection rules are retrieved from Rulezet.