CVE-2022-50012 (GCVE-0-2022-50012)
Vulnerability from cvelistv5
Published
2025-06-18 11:01
Modified
2025-06-18 11:01
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: powerpc/64: Init jump labels before parse_early_param() On 64-bit, calling jump_label_init() in setup_feature_keys() is too late because static keys may be used in subroutines of parse_early_param() which is again subroutine of early_init_devtree(). For example booting with "threadirqs": static_key_enable_cpuslocked(): static key '0xc000000002953260' used before call to jump_label_init() WARNING: CPU: 0 PID: 0 at kernel/jump_label.c:166 static_key_enable_cpuslocked+0xfc/0x120 ... NIP static_key_enable_cpuslocked+0xfc/0x120 LR static_key_enable_cpuslocked+0xf8/0x120 Call Trace: static_key_enable_cpuslocked+0xf8/0x120 (unreliable) static_key_enable+0x30/0x50 setup_forced_irqthreads+0x28/0x40 do_early_param+0xa0/0x108 parse_args+0x290/0x4e0 parse_early_options+0x48/0x5c parse_early_param+0x58/0x84 early_init_devtree+0xd4/0x518 early_setup+0xb4/0x214 So call jump_label_init() just before parse_early_param() in early_init_devtree(). [mpe: Add call trace to change log and minor wording edits.]
References
Impacted products
Vendor Product Version
Linux Linux Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "arch/powerpc/kernel/prom.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
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        {
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          "product": "Linux",
          "programFiles": [
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          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
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              "status": "unaffected",
              "version": "4.9.326",
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            },
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              "lessThanOrEqual": "4.14.*",
              "status": "unaffected",
              "version": "4.14.291",
              "versionType": "semver"
            },
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              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.256",
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            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.211",
              "versionType": "semver"
            },
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              "lessThanOrEqual": "5.10.*",
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              "version": "5.10.138",
              "versionType": "semver"
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              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.63",
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              "version": "5.19.4",
              "versionType": "semver"
            },
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              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.0",
              "versionType": "original_commit_for_fix"
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        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.9.326",
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              "negate": false,
              "operator": "OR"
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npowerpc/64: Init jump labels before parse_early_param()\n\nOn 64-bit, calling jump_label_init() in setup_feature_keys() is too\nlate because static keys may be used in subroutines of\nparse_early_param() which is again subroutine of early_init_devtree().\n\nFor example booting with \"threadirqs\":\n\n  static_key_enable_cpuslocked(): static key \u00270xc000000002953260\u0027 used before call to jump_label_init()\n  WARNING: CPU: 0 PID: 0 at kernel/jump_label.c:166 static_key_enable_cpuslocked+0xfc/0x120\n  ...\n  NIP static_key_enable_cpuslocked+0xfc/0x120\n  LR  static_key_enable_cpuslocked+0xf8/0x120\n  Call Trace:\n    static_key_enable_cpuslocked+0xf8/0x120 (unreliable)\n    static_key_enable+0x30/0x50\n    setup_forced_irqthreads+0x28/0x40\n    do_early_param+0xa0/0x108\n    parse_args+0x290/0x4e0\n    parse_early_options+0x48/0x5c\n    parse_early_param+0x58/0x84\n    early_init_devtree+0xd4/0x518\n    early_setup+0xb4/0x214\n\nSo call jump_label_init() just before parse_early_param() in\nearly_init_devtree().\n\n[mpe: Add call trace to change log and minor wording edits.]"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-06-18T11:01:16.857Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/c4ced9fd10073adc854919976b88ad6004271119"
        },
        {
          "url": "https://git.kernel.org/stable/c/8992141cb88f1d99fd11580f4423634700a99240"
        },
        {
          "url": "https://git.kernel.org/stable/c/4bb1188e2b1ed98fa2b618cc0628ccba63c6c80f"
        },
        {
          "url": "https://git.kernel.org/stable/c/5e14b04c8459afbeea1eeb74e81af86d7b196a4d"
        },
        {
          "url": "https://git.kernel.org/stable/c/dac28dff90849af4200b8269fcdc84cdc12fa46c"
        },
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          "url": "https://git.kernel.org/stable/c/e3c9e9452a8ea12d335b1e59b2c72e1b99c699b8"
        },
        {
          "url": "https://git.kernel.org/stable/c/8f9357313cdcadb0a311b44c29d4eaccc7fa632f"
        },
        {
          "url": "https://git.kernel.org/stable/c/ca829e05d3d4f728810cc5e4b468d9ebc7745eb3"
        }
      ],
      "title": "powerpc/64: Init jump labels before parse_early_param()",
      "x_generator": {
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  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50012",
    "datePublished": "2025-06-18T11:01:16.857Z",
    "dateReserved": "2025-06-18T10:57:27.388Z",
    "dateUpdated": "2025-06-18T11:01:16.857Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-50012\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-06-18T11:15:29.213\",\"lastModified\":\"2025-06-18T13:46:52.973\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\npowerpc/64: Init jump labels before parse_early_param()\\n\\nOn 64-bit, calling jump_label_init() in setup_feature_keys() is too\\nlate because static keys may be used in subroutines of\\nparse_early_param() which is again subroutine of early_init_devtree().\\n\\nFor example booting with \\\"threadirqs\\\":\\n\\n  static_key_enable_cpuslocked(): static key \u00270xc000000002953260\u0027 used before call to jump_label_init()\\n  WARNING: CPU: 0 PID: 0 at kernel/jump_label.c:166 static_key_enable_cpuslocked+0xfc/0x120\\n  ...\\n  NIP static_key_enable_cpuslocked+0xfc/0x120\\n  LR  static_key_enable_cpuslocked+0xf8/0x120\\n  Call Trace:\\n    static_key_enable_cpuslocked+0xf8/0x120 (unreliable)\\n    static_key_enable+0x30/0x50\\n    setup_forced_irqthreads+0x28/0x40\\n    do_early_param+0xa0/0x108\\n    parse_args+0x290/0x4e0\\n    parse_early_options+0x48/0x5c\\n    parse_early_param+0x58/0x84\\n    early_init_devtree+0xd4/0x518\\n    early_setup+0xb4/0x214\\n\\nSo call jump_label_init() just before parse_early_param() in\\nearly_init_devtree().\\n\\n[mpe: Add call trace to change log and minor wording edits.]\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: powerpc/64: Inicializar etiquetas de salto antes de parse_early_param() En 64 bits, llamar a jump_label_init() en setup_feature_keys() es demasiado tarde porque las claves est\u00e1ticas se pueden usar en subrutinas de parse_early_param(), que a su vez es una subrutina de early_init_devtree(). Por ejemplo, al arrancar con \\\"threadirqs\\\": static_key_enable_cpuslocked(): clave est\u00e1tica \u00270xc000000002953260\u0027 usada antes de llamar a jump_label_init() ADVERTENCIA: CPU: 0 PID: 0 en kernel/jump_label.c:166 static_key_enable_cpuslocked+0xfc/0x120 ... NIP static_key_enable_cpuslocked+0xfc/0x120 LR static_key_enable_cpuslocked+0xf8/0x120 Rastreo de llamadas: static_key_enable_cpuslocked+0xf8/0x120 (no confiable) static_key_enable+0x30/0x50 setup_forced_irqthreads+0x28/0x40 do_early_param+0xa0/0x108 parse_args+0x290/0x4e0 parse_early_options+0x48/0x5c parse_early_param+0x58/0x84 early_init_devtree+0xd4/0x518 early_setup+0xb4/0x214 Por lo tanto, llame a jump_label_init() justo antes de parse_early_param() en early_init_devtree(). [mpe: Agregar seguimiento de llamadas al registro de cambios y ediciones menores de redacci\u00f3n].\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/4bb1188e2b1ed98fa2b618cc0628ccba63c6c80f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/5e14b04c8459afbeea1eeb74e81af86d7b196a4d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/8992141cb88f1d99fd11580f4423634700a99240\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/8f9357313cdcadb0a311b44c29d4eaccc7fa632f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/c4ced9fd10073adc854919976b88ad6004271119\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/ca829e05d3d4f728810cc5e4b468d9ebc7745eb3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/dac28dff90849af4200b8269fcdc84cdc12fa46c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/e3c9e9452a8ea12d335b1e59b2c72e1b99c699b8\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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