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CVE-2026-74733 gpio: pca953x: fix pca953x_irq_bus_sync_unlock regmap lock

🗓️ 22 Aug 2026 15:33:21Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 4 Views

Race condition in Linux pca953x GPIO driver allows incorrect register access via missing lock.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2026-74733
22 Aug 202616:31
circl
cve
CVE
CVE-2026-74733
22 Aug 202615:33
cve
debiancve
Debian CVE
CVE-2026-74733
22 Aug 202615:33
debiancve
euvd
EUVD
EUVD-2026-64420
22 Aug 202615:33
euvd
nvd
NVD
CVE-2026-74733
22 Aug 202616:16
nvd
ptsecurity
Positive Technologies
PT-2026-79738
22 Aug 202600:00
ptsecurity
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/gpio/gpio-pca953x.c"
    ],
    "versions": [
      {
        "version": "bfc6444b57dc7186b6acc964705d7516cbaf3904",
        "lessThan": "e6a2f5f845f50b0c4299bace5111f56d3390a090",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "bfc6444b57dc7186b6acc964705d7516cbaf3904",
        "lessThan": "9dc325327babe7f159e84cbe9380a45342da0585",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "58a5c93bd1a6e949267400080f07e57ffe05ec34",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "e2ecdddca80dd845df42376e4b0197fe97018ba2",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "de7cffa53149c7b48bd1bb29b02390c9f05b7f41",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6.1.101",
        "lessThan": "6.2",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "6.6.42",
        "lessThan": "6.7",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "6.9.11",
        "lessThan": "6.10",
        "status": "affected",
        "versionType": "semver"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/gpio/gpio-pca953x.c"
    ],
    "versions": [
      {
        "version": "6.10",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.10",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.9",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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