{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2024-42253",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2024-42253",
    "idYear": 2024,
    "status": "PUBLISHED",
    "publishedAt": "2024-08-08T08:46:29.284Z",
    "updatedAt": "2026-08-05T11:36:05.727Z",
    "importedAt": "2026-10-24T01:57:16.009Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "gpio: pca953x: fix pca953x_irq_bus_sync_unlock race",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\ngpio: pca953x: fix pca953x_irq_bus_sync_unlock race\n\nEnsure that `i2c_lock' is held when setting interrupt latch and mask in\npca953x_irq_bus_sync_unlock() in order to avoid races.\n\nThe other (non-probe) call site pca953x_gpio_set_multiple() ensures the\nlock is held before calling pca953x_write_regs().\n\nThe problem occurred when a request raced against irq_bus_sync_unlock()\napproximately once per thousand reboots on an i.MX8MP based system.\n\n * Normal case\n\n   0-0022: write register AI|3a {03,02,00,00,01} Input latch P0\n   0-0022: write register AI|49 {fc,fd,ff,ff,fe} Interrupt mask P0\n   0-0022: write register AI|08 {ff,00,00,00,00} Output P3\n   0-0022: write register AI|12 {fc,00,00,00,00} Config P3\n\n * Race case\n\n   0-0022: write register AI|08 {ff,00,00,00,00} Output P3\n   0-0022: write register AI|08 {03,02,00,00,01} *** Wrong register ***\n   0-0022: write register AI|12 {fc,00,00,00,00} Config P3\n   0-0022: write register AI|49 {fc,fd,ff,ff,fe} Interrupt mask P0",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "44896beae605b93f2232301befccb7ef42953198",
              "status": "affected",
              "versionType": "git",
              "lessThan": "58a5c93bd1a6e949267400080f07e57ffe05ec34"
            },
            {
              "version": "44896beae605b93f2232301befccb7ef42953198",
              "status": "affected",
              "versionType": "git",
              "lessThan": "e2ecdddca80dd845df42376e4b0197fe97018ba2"
            },
            {
              "version": "44896beae605b93f2232301befccb7ef42953198",
              "status": "affected",
              "versionType": "git",
              "lessThan": "de7cffa53149c7b48bd1bb29b02390c9f05b7f41"
            },
            {
              "version": "44896beae605b93f2232301befccb7ef42953198",
              "status": "affected",
              "versionType": "git",
              "lessThan": "bfc6444b57dc7186b6acc964705d7516cbaf3904"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "4.7",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "4.7"
            },
            {
              "version": "6.1.101",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.42",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.9.11",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.9.*"
            },
            {
              "version": "6.10",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}