{
  "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-2026-52948",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-52948",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-06-24T16:26:05.719Z",
    "updatedAt": "2026-10-15T01:22:04.803Z",
    "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": "i2c: dev: prevent integer overflow in I2C_TIMEOUT ioctl",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\ni2c: dev: prevent integer overflow in I2C_TIMEOUT ioctl\n\nWhile fuzzing with Syzkaller, a persistent `schedule_timeout: wrong\ntimeout value` warning was observed, accompanied by SMBus controller\nstate machine corruption.\n\nThe I2C_TIMEOUT ioctl accepts a user-provided timeout in multiples of\n10 ms. The user argument is checked against INT_MAX, but it is\nsubsequently multiplied by 10 before being passed to msecs_to_jiffies().\n\nA malicious user can pass a large value (e.g., 429496729) that passes\nthe `arg > INT_MAX` check but overflows when multiplied by 10. This\nresults in a truncated 32-bit unsigned value that bypasses the\ninternal `(int)m < 0` check in `msecs_to_jiffies()`.\n\nThe truncated value is then assigned to `client->adapter->timeout`\n(a signed 32-bit int), which is reinterpreted as a negative number.\nWhen passed to wait_for_completion_timeout(), this negative value\nundergoes sign extension to a 64-bit unsigned long, triggering the\n`schedule_timeout` warning and causing premature returns. This leaves\nthe SMBus state machine in an unrecoverable state, constituting a\nlocal Denial of Service (DoS).\n\nFix this by bounding the user argument to `INT_MAX / 10`.\n\n[wsa: move the comment as well]",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "cd97f39b7cdf1c8a9c9f52865eec795b7f0c811d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "e9ffd5f5050fbb199d270a85614cd27ebed6fbac"
            },
            {
              "version": "cd97f39b7cdf1c8a9c9f52865eec795b7f0c811d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0b88ecfbc9dc33b4db8836c37b50cf174e6c0691"
            },
            {
              "version": "cd97f39b7cdf1c8a9c9f52865eec795b7f0c811d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "943e318eedbeaeea08ece3f5dd44c982f4ed2ef5"
            },
            {
              "version": "cd97f39b7cdf1c8a9c9f52865eec795b7f0c811d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "aa6ef734016912653a909477fb30aeb66c98b3a2"
            },
            {
              "version": "cd97f39b7cdf1c8a9c9f52865eec795b7f0c811d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ff02add34ffd03449b8115904ebe2ec4fed022d4"
            },
            {
              "version": "cd97f39b7cdf1c8a9c9f52865eec795b7f0c811d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ffbcf31f032eb454ebfd29309f51366fe57f4ac4"
            },
            {
              "version": "cd97f39b7cdf1c8a9c9f52865eec795b7f0c811d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "4576621dc6577f21a032acfd16c3ad61907a5ea7"
            },
            {
              "version": "cd97f39b7cdf1c8a9c9f52865eec795b7f0c811d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "617eb7c0961a8dfcfc811844a6396e406b2923ea"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "2.6.29",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "2.6.29"
            },
            {
              "version": "5.10.259",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.210",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.176",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.143",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.94",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.36",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.0.13",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.0.*"
            },
            {
              "version": "7.1",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}