{
  "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-2023-53694",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2023-53694",
    "idYear": 2023,
    "status": "PUBLISHED",
    "publishedAt": "2025-10-22T13:23:35.869Z",
    "updatedAt": "2026-05-11T19:50:02.971Z",
    "importedAt": "2026-10-24T01:57:03.413Z",
    "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": "riscv: ftrace: Fixup panic by disabling preemption",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nriscv: ftrace: Fixup panic by disabling preemption\n\nIn RISCV, we must use an AUIPC + JALR pair to encode an immediate,\nforming a jump that jumps to an address over 4K. This may cause errors\nif we want to enable kernel preemption and remove dependency from\npatching code with stop_machine(). For example, if a task was switched\nout on auipc. And, if we changed the ftrace function before it was\nswitched back, then it would jump to an address that has updated 11:0\nbits mixing with previous XLEN:12 part.\n\np: patched area performed by dynamic ftrace\nftrace_prologue:\np|      REG_S   ra, -SZREG(sp)\np|      auipc   ra, 0x? ------------> preempted\n\t\t\t\t\t...\n\t\t\t\tchange ftrace function\n\t\t\t\t\t...\np|      jalr    -?(ra) <------------- switched back\np|      REG_L   ra, -SZREG(sp)\nfunc:\n\txxx\n\tret",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "afc76b8b80112189b6f11e67e19cf58301944814",
              "status": "affected",
              "versionType": "git",
              "lessThan": "84cfcf240f4a577733b1d98fcd2611a611612b03"
            },
            {
              "version": "afc76b8b80112189b6f11e67e19cf58301944814",
              "status": "affected",
              "versionType": "git",
              "lessThan": "20a7510e781084364691b4962de31de758194cc9"
            },
            {
              "version": "afc76b8b80112189b6f11e67e19cf58301944814",
              "status": "affected",
              "versionType": "git",
              "lessThan": "8547649981e6631328cd64f583667501ae385531"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.12",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.12"
            },
            {
              "version": "6.1.23",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.2.3",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.2.*"
            },
            {
              "version": "6.3",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}