{
  "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-2023-53859",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2023-53859",
    "idYear": 2023,
    "status": "PUBLISHED",
    "publishedAt": "2025-12-09T01:30:26.351Z",
    "updatedAt": "2026-05-23T15:31:27.524Z",
    "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": "s390/idle: mark arch_cpu_idle() noinstr",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\ns390/idle: mark arch_cpu_idle() noinstr\n\nlinux-next commit (\"cpuidle: tracing: Warn about !rcu_is_watching()\")\nadds a new warning which hits on s390's arch_cpu_idle() function:\n\nRCU not on for: arch_cpu_idle+0x0/0x28\nWARNING: CPU: 2 PID: 0 at include/linux/trace_recursion.h:162 arch_ftrace_ops_list_func+0x24c/0x258\nModules linked in:\nCPU: 2 PID: 0 Comm: swapper/2 Not tainted 6.2.0-rc6-next-20230202 #4\nHardware name: IBM 8561 T01 703 (z/VM 7.3.0)\nKrnl PSW : 0404d00180000000 00000000002b55c0 (arch_ftrace_ops_list_func+0x250/0x258)\n           R:0 T:1 IO:0 EX:0 Key:0 M:1 W:0 P:0 AS:3 CC:1 PM:0 RI:0 EA:3\nKrnl GPRS: c0000000ffffbfff 0000000080000002 0000000000000026 0000000000000000\n           0000037ffffe3a28 0000037ffffe3a20 0000000000000000 0000000000000000\n           0000000000000000 0000000000f4acf6 00000000001044f0 0000037ffffe3cb0\n           0000000000000000 0000000000000000 00000000002b55bc 0000037ffffe3bb8\nKrnl Code: 00000000002b55b0: c02000840051        larl    %r2,0000000001335652\n           00000000002b55b6: c0e5fff512d1        brasl   %r14,0000000000157b58\n          #00000000002b55bc: af000000            mc      0,0\n          >00000000002b55c0: a7f4ffe7            brc     15,00000000002b558e\n           00000000002b55c4: 0707                bcr     0,%r7\n           00000000002b55c6: 0707                bcr     0,%r7\n           00000000002b55c8: eb6ff0480024        stmg    %r6,%r15,72(%r15)\n           00000000002b55ce: b90400ef            lgr     %r14,%r15\nCall Trace:\n [<00000000002b55c0>] arch_ftrace_ops_list_func+0x250/0x258\n([<00000000002b55bc>] arch_ftrace_ops_list_func+0x24c/0x258)\n [<0000000000f5f0fc>] ftrace_common+0x1c/0x20\n [<00000000001044f6>] arch_cpu_idle+0x6/0x28\n [<0000000000f4acf6>] default_idle_call+0x76/0x128\n [<00000000001cc374>] do_idle+0xf4/0x1b0\n [<00000000001cc6ce>] cpu_startup_entry+0x36/0x40\n [<0000000000119d00>] smp_start_secondary+0x140/0x150\n [<0000000000f5d2ae>] restart_int_handler+0x6e/0x90\n\nMark arch_cpu_idle() noinstr like all other architectures with\nCONFIG_ARCH_WANTS_NO_INSTR (should) have it to fix this.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "1098582a0f6c4e8fd28da0a6305f9233d02c9c1d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "49aa49952116b8fd56bfb1e8c69bce179f49bece"
            },
            {
              "version": "1098582a0f6c4e8fd28da0a6305f9233d02c9c1d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "611c390217106c46e24e1af3db83187339d447ea"
            },
            {
              "version": "1098582a0f6c4e8fd28da0a6305f9233d02c9c1d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "fc60c4f12d8a056f20d8f4d0086a36c68ffa9fdc"
            },
            {
              "version": "1098582a0f6c4e8fd28da0a6305f9233d02c9c1d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "a9cbc1b471d291c865907542394f1c483b93a811"
            },
            {
              "version": "788621afda4101ca0fae48de424040cda78193fe",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "4.19.297",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "4.20"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.9",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.9"
            },
            {
              "version": "5.15.99",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.16",
              "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": "*"
            }
          ]
        }
      ]
    }
  }
}