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CVE-2023-53859 (GCVE-0-2023-53859)

Vulnerability from cvelistv5 – Published: 2025-12-09 01:30 – Updated: 2026-05-23 15:31
VLAI
Title
s390/idle: mark arch_cpu_idle() noinstr
Summary
In the Linux kernel, the following vulnerability has been resolved: s390/idle: mark arch_cpu_idle() noinstr linux-next commit ("cpuidle: tracing: Warn about !rcu_is_watching()") adds a new warning which hits on s390's arch_cpu_idle() function: RCU not on for: arch_cpu_idle+0x0/0x28 WARNING: CPU: 2 PID: 0 at include/linux/trace_recursion.h:162 arch_ftrace_ops_list_func+0x24c/0x258 Modules linked in: CPU: 2 PID: 0 Comm: swapper/2 Not tainted 6.2.0-rc6-next-20230202 #4 Hardware name: IBM 8561 T01 703 (z/VM 7.3.0) Krnl PSW : 0404d00180000000 00000000002b55c0 (arch_ftrace_ops_list_func+0x250/0x258) 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 Krnl GPRS: c0000000ffffbfff 0000000080000002 0000000000000026 0000000000000000 0000037ffffe3a28 0000037ffffe3a20 0000000000000000 0000000000000000 0000000000000000 0000000000f4acf6 00000000001044f0 0000037ffffe3cb0 0000000000000000 0000000000000000 00000000002b55bc 0000037ffffe3bb8 Krnl Code: 00000000002b55b0: c02000840051 larl %r2,0000000001335652 00000000002b55b6: c0e5fff512d1 brasl %r14,0000000000157b58 #00000000002b55bc: af000000 mc 0,0 >00000000002b55c0: a7f4ffe7 brc 15,00000000002b558e 00000000002b55c4: 0707 bcr 0,%r7 00000000002b55c6: 0707 bcr 0,%r7 00000000002b55c8: eb6ff0480024 stmg %r6,%r15,72(%r15) 00000000002b55ce: b90400ef lgr %r14,%r15 Call Trace: [<00000000002b55c0>] arch_ftrace_ops_list_func+0x250/0x258 ([<00000000002b55bc>] arch_ftrace_ops_list_func+0x24c/0x258) [<0000000000f5f0fc>] ftrace_common+0x1c/0x20 [<00000000001044f6>] arch_cpu_idle+0x6/0x28 [<0000000000f4acf6>] default_idle_call+0x76/0x128 [<00000000001cc374>] do_idle+0xf4/0x1b0 [<00000000001cc6ce>] cpu_startup_entry+0x36/0x40 [<0000000000119d00>] smp_start_secondary+0x140/0x150 [<0000000000f5d2ae>] restart_int_handler+0x6e/0x90 Mark arch_cpu_idle() noinstr like all other architectures with CONFIG_ARCH_WANTS_NO_INSTR (should) have it to fix this.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 1098582a0f6c4e8fd28da0a6305f9233d02c9c1d , < 49aa49952116b8fd56bfb1e8c69bce179f49bece (git)
Affected: 1098582a0f6c4e8fd28da0a6305f9233d02c9c1d , < 611c390217106c46e24e1af3db83187339d447ea (git)
Affected: 1098582a0f6c4e8fd28da0a6305f9233d02c9c1d , < fc60c4f12d8a056f20d8f4d0086a36c68ffa9fdc (git)
Affected: 1098582a0f6c4e8fd28da0a6305f9233d02c9c1d , < a9cbc1b471d291c865907542394f1c483b93a811 (git)
Affected: 788621afda4101ca0fae48de424040cda78193fe (git)
Affected: 4.19.297 , < 4.20 (semver)
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Linux Linux Affected: 5.9
Unaffected: 0 , < 5.9 (semver)
Unaffected: 5.15.99 , ≤ 5.15.* (semver)
Unaffected: 6.1.16 , ≤ 6.1.* (semver)
Unaffected: 6.2.3 , ≤ 6.2.* (semver)
Unaffected: 6.3 , ≤ * (original_commit_for_fix)
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Show details on NVD website
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "arch/s390/kernel/idle.c"
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          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "status": "affected",
              "version": "1098582a0f6c4e8fd28da0a6305f9233d02c9c1d",
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              "version": "1098582a0f6c4e8fd28da0a6305f9233d02c9c1d",
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              "status": "affected",
              "version": "1098582a0f6c4e8fd28da0a6305f9233d02c9c1d",
              "versionType": "git"
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              "status": "affected",
              "version": "788621afda4101ca0fae48de424040cda78193fe",
              "versionType": "git"
            },
            {
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              "status": "affected",
              "version": "4.19.297",
              "versionType": "semver"
            }
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        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "arch/s390/kernel/idle.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.9"
            },
            {
              "lessThan": "5.9",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.99",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.16",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.2.*",
              "status": "unaffected",
              "version": "6.2.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.99",
                  "versionStartIncluding": "5.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.16",
                  "versionStartIncluding": "5.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.2.3",
                  "versionStartIncluding": "5.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.3",
                  "versionStartIncluding": "5.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "4.19.297",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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\u0027s 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          \u003e00000000002b55c0: 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 [\u003c00000000002b55c0\u003e] arch_ftrace_ops_list_func+0x250/0x258\n([\u003c00000000002b55bc\u003e] arch_ftrace_ops_list_func+0x24c/0x258)\n [\u003c0000000000f5f0fc\u003e] ftrace_common+0x1c/0x20\n [\u003c00000000001044f6\u003e] arch_cpu_idle+0x6/0x28\n [\u003c0000000000f4acf6\u003e] default_idle_call+0x76/0x128\n [\u003c00000000001cc374\u003e] do_idle+0xf4/0x1b0\n [\u003c00000000001cc6ce\u003e] cpu_startup_entry+0x36/0x40\n [\u003c0000000000119d00\u003e] smp_start_secondary+0x140/0x150\n [\u003c0000000000f5d2ae\u003e] 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."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-23T15:31:27.524Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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          "url": "https://git.kernel.org/stable/c/49aa49952116b8fd56bfb1e8c69bce179f49bece"
        },
        {
          "url": "https://git.kernel.org/stable/c/611c390217106c46e24e1af3db83187339d447ea"
        },
        {
          "url": "https://git.kernel.org/stable/c/fc60c4f12d8a056f20d8f4d0086a36c68ffa9fdc"
        },
        {
          "url": "https://git.kernel.org/stable/c/a9cbc1b471d291c865907542394f1c483b93a811"
        }
      ],
      "title": "s390/idle: mark arch_cpu_idle() noinstr",
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        "engine": "bippy-1.2.0"
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-53859",
    "datePublished": "2025-12-09T01:30:26.351Z",
    "dateReserved": "2025-12-09T01:27:17.828Z",
    "dateUpdated": "2026-05-23T15:31:27.524Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2023-53859",
      "date": "2026-09-16",
      "epss": "0.00221",
      "percentile": "0.12825"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-53859\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-12-09T16:17:26.630\",\"lastModified\":\"2026-06-17T06:46:11.927\",\"vulnStatus\":\"Deferred\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"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\u0027s 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          \u003e00000000002b55c0: 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 [\u003c00000000002b55c0\u003e] arch_ftrace_ops_list_func+0x250/0x258\\n([\u003c00000000002b55bc\u003e] arch_ftrace_ops_list_func+0x24c/0x258)\\n [\u003c0000000000f5f0fc\u003e] ftrace_common+0x1c/0x20\\n [\u003c00000000001044f6\u003e] arch_cpu_idle+0x6/0x28\\n [\u003c0000000000f4acf6\u003e] default_idle_call+0x76/0x128\\n [\u003c00000000001cc374\u003e] do_idle+0xf4/0x1b0\\n [\u003c00000000001cc6ce\u003e] cpu_startup_entry+0x36/0x40\\n [\u003c0000000000119d00\u003e] smp_start_secondary+0x140/0x150\\n [\u003c0000000000f5d2ae\u003e] 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\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"arch/s390/kernel/idle.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"1098582a0f6c4e8fd28da0a6305f9233d02c9c1d\",\"lessThan\":\"49aa49952116b8fd56bfb1e8c69bce179f49bece\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"1098582a0f6c4e8fd28da0a6305f9233d02c9c1d\",\"lessThan\":\"611c390217106c46e24e1af3db83187339d447ea\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"1098582a0f6c4e8fd28da0a6305f9233d02c9c1d\",\"lessThan\":\"fc60c4f12d8a056f20d8f4d0086a36c68ffa9fdc\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"1098582a0f6c4e8fd28da0a6305f9233d02c9c1d\",\"lessThan\":\"a9cbc1b471d291c865907542394f1c483b93a811\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"788621afda4101ca0fae48de424040cda78193fe\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"4.19.297\",\"lessThan\":\"4.20\",\"versionType\":\"semver\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"arch/s390/kernel/idle.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"5.9\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"5.9\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.99\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.16\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.2.3\",\"lessThanOrEqual\":\"6.2.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.3\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/49aa49952116b8fd56bfb1e8c69bce179f49bece\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/611c390217106c46e24e1af3db83187339d447ea\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/a9cbc1b471d291c865907542394f1c483b93a811\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/fc60c4f12d8a056f20d8f4d0086a36c68ffa9fdc\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}",
    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-06-30T10:28:19+00:00",
      "cve": "CVE-2023-53859",
      "id": "CVE-2023-53859",
      "initial_release_date": "2023-01-01T00:00:00+00:00",
      "product_status:fixed": "305",
      "product_status:known_affected": "70",
      "product_status:known_not_affected": "118",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: s390/idle: mark arch_cpu_idle() noinstr",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-53859.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-05T17:02:07Z",
      "cve": "CVE-2023-53859",
      "id": "CVE-2023-53859",
      "initial_release_date": "2025-12-10T00:34:24Z",
      "product_status:known_not_affected": "555",
      "product_status:recommended": "43",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2023-53859",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2023-53859.json",
      "version": "18"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


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