{
  "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-2026-46257",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-46257",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-06-03T15:49:54.286Z",
    "updatedAt": "2026-06-03T15:49:54.286Z",
    "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": "clocksource/drivers/timer-sp804: Fix an Oops when read_current_timer is called on ARM32 platforms where the SP804 is not registered as the sched_clock.",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nclocksource/drivers/timer-sp804: Fix an Oops when read_current_timer is called on ARM32 platforms where the SP804 is not registered as the sched_clock.\n\nOn SP804, the delay timer shares the same clkevt instance with\nsched_clock. On some platforms, when\nsp804_clocksource_and_sched_clock_init is called with use_sched_clock\nnot set to 1, sched_clkevt is not properly initialized. However,\nsp804_register_delay_timer is invoked unconditionally, and\nread_current_timer() subsequently calls sp804_read on an uninitialized\nsched_clkevt, leading to a kernel Oops when accessing\nsched_clkevt->value.\n\nDeclare a dedicated clkevt instance exclusively for delay timer,\ninstead of sharing the same clkevt with sched_clock.  This ensures\nthat read_current_timer continues to work correctly regardless of\nwhether SP804 is selected as the sched_clock.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "640594a04f119338019b0aeed70c7301216595b3",
              "status": "affected",
              "versionType": "git",
              "lessThan": "693b0b594b0f278bafa784984129c0c0f988e352"
            },
            {
              "version": "640594a04f119338019b0aeed70c7301216595b3",
              "status": "affected",
              "versionType": "git",
              "lessThan": "694921a93f3e3621e067afc545cedf6fe3b234a9"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "6.19",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "6.19"
            },
            {
              "version": "6.19.4",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.19.*"
            },
            {
              "version": "7.0",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}