{
  "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-2026-93219",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-93219",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-09-24T15:10:42.900Z",
    "updatedAt": "2026-10-19T09:07:31.003Z",
    "importedAt": "2026-10-24T01:58:35.090Z",
    "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": "clocksource/drivers/timer-sun4i: Advertise a real minimum delta",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nclocksource/drivers/timer-sun4i: Advertise a real minimum delta\n\nsun4i_clkevt_next_event() compensates for the timer stop/start\nsynchronization delay by programming evt - TIMER_SYNC_TICKS into the\nhardware interval register. The clockevent device currently advertises\nTIMER_SYNC_TICKS as min_delta_ticks, so the clockevents core is allowed\nto call set_next_event() with evt == TIMER_SYNC_TICKS.\n\nThat programs a zero-tick interval. With oneshot/highres/nohz timer\noperation this can leave the next event stuck, which was observed as a\nboot hang on Allwinner D1 after the clockevents core started reusing\nforced minimum-delta events.\n\nAdvertise one extra tick instead, so the smallest event accepted by the\ncore still programs at least one hardware tick after the synchronization\ncompensation.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "12e1480bcb4920c1b02b3793cb48756497919a60",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0cc4b14d7401d50e53a01f1554147ee075ee6943"
            },
            {
              "version": "12e1480bcb4920c1b02b3793cb48756497919a60",
              "status": "affected",
              "versionType": "git",
              "lessThan": "53a3bc024b8e5d284468cce84957cded5f859f98"
            },
            {
              "version": "12e1480bcb4920c1b02b3793cb48756497919a60",
              "status": "affected",
              "versionType": "git",
              "lessThan": "753a220084dfc4d737f2ab9eaddc9a01a397edd7"
            },
            {
              "version": "12e1480bcb4920c1b02b3793cb48756497919a60",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ebba4d0aeba0e8eb3a9676380fc2652de8ab1c44"
            },
            {
              "version": "12e1480bcb4920c1b02b3793cb48756497919a60",
              "status": "affected",
              "versionType": "git",
              "lessThan": "151eb52f8712017c8f7b00bb2305e8916cb9e3dc"
            },
            {
              "version": "12e1480bcb4920c1b02b3793cb48756497919a60",
              "status": "affected",
              "versionType": "git",
              "lessThan": "bf38be01d43c4e4ca903aff7236d8486a950a252"
            },
            {
              "version": "12e1480bcb4920c1b02b3793cb48756497919a60",
              "status": "affected",
              "versionType": "git",
              "lessThan": "f0efafcdf6eec1f3361bfd8c811420198f55c8bb"
            },
            {
              "version": "12e1480bcb4920c1b02b3793cb48756497919a60",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d21808328225ab8cee46885bf9a0dffcefbe630e"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "3.13",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "3.13"
            },
            {
              "version": "5.10.270",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.221",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.188",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.157",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.109",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.50",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.2.4",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "version": "7.3",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}