{
  "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-2026-43380",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-43380",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-05-08T14:21:28.702Z",
    "updatedAt": "2026-08-05T12:27:40.763Z",
    "importedAt": "2026-10-24T01:58:14.884Z",
    "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": "hwmon: (pmbus/q54sj108a2) fix stack overflow in debugfs read",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nhwmon: (pmbus/q54sj108a2) fix stack overflow in debugfs read\n\nThe q54sj108a2_debugfs_read function suffers from a stack buffer overflow\ndue to incorrect arguments passed to bin2hex(). The function currently\npasses 'data' as the destination and 'data_char' as the source.\n\nBecause bin2hex() converts each input byte into two hex characters, a\n32-byte block read results in 64 bytes of output. Since 'data' is only\n34 bytes (I2C_SMBUS_BLOCK_MAX + 2), this writes 30 bytes past the end\nof the buffer onto the stack.\n\nAdditionally, the arguments were swapped: it was reading from the\nzero-initialized 'data_char' and writing to 'data', resulting in\nall-zero output regardless of the actual I2C read.\n\nFix this by:\n1. Expanding 'data_char' to 66 bytes to safely hold the hex output.\n2. Correcting the bin2hex() argument order and using the actual read count.\n3. Using a pointer to select the correct output buffer for the final\n   simple_read_from_buffer call.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "d014538aa38561cd24c5eb228223585f26c5ec71",
              "status": "affected",
              "versionType": "git",
              "lessThan": "a0fc1b9c738fba231f190ab960c83202722efee5"
            },
            {
              "version": "d014538aa38561cd24c5eb228223585f26c5ec71",
              "status": "affected",
              "versionType": "git",
              "lessThan": "c59090c50f62a17129fc4c5407bc4071305a9e82"
            },
            {
              "version": "d014538aa38561cd24c5eb228223585f26c5ec71",
              "status": "affected",
              "versionType": "git",
              "lessThan": "52db5ef163c96f916d424e472fb17aadc35a9f7a"
            },
            {
              "version": "d014538aa38561cd24c5eb228223585f26c5ec71",
              "status": "affected",
              "versionType": "git",
              "lessThan": "b48a0f8d4541a4f6651dc9a64430ce9fdf5c120b"
            },
            {
              "version": "d014538aa38561cd24c5eb228223585f26c5ec71",
              "status": "affected",
              "versionType": "git",
              "lessThan": "73a7a345816946d276ad2c46c8bb771de67cfc46"
            },
            {
              "version": "d014538aa38561cd24c5eb228223585f26c5ec71",
              "status": "affected",
              "versionType": "git",
              "lessThan": "24a7b9daa103fa963b3fd37d8805b23e01621976"
            },
            {
              "version": "d014538aa38561cd24c5eb228223585f26c5ec71",
              "status": "affected",
              "versionType": "git",
              "lessThan": "25dd70a03b1f5f3aa71e1a5091ecd9cd2a13ee43"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.11",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.11"
            },
            {
              "version": "5.15.203",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.167",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.130",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.78",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.19",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "6.19.9",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.19.*"
            },
            {
              "version": "7.0",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}