{
  "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-2024-50249",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2024-50249",
    "idYear": 2024,
    "status": "PUBLISHED",
    "publishedAt": "2024-11-09T10:14:57.833Z",
    "updatedAt": "2026-05-23T15:54:52.293Z",
    "importedAt": "2026-10-24T01:57:20.494Z",
    "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": "ACPI: CPPC: Make rmw_lock a raw_spin_lock",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nACPI: CPPC: Make rmw_lock a raw_spin_lock\n\nThe following BUG was triggered:\n\n=============================\n[ BUG: Invalid wait context ]\n6.12.0-rc2-XXX #406 Not tainted\n-----------------------------\nkworker/1:1/62 is trying to lock:\nffffff8801593030 (&cpc_ptr->rmw_lock){+.+.}-{3:3}, at: cpc_write+0xcc/0x370\nother info that might help us debug this:\ncontext-{5:5}\n2 locks held by kworker/1:1/62:\n  #0: ffffff897ef5ec98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2c/0x50\n  #1: ffffff880154e238 (&sg_policy->update_lock){....}-{2:2}, at: sugov_update_shared+0x3c/0x280\nstack backtrace:\nCPU: 1 UID: 0 PID: 62 Comm: kworker/1:1 Not tainted 6.12.0-rc2-g9654bd3e8806 #406\nWorkqueue:  0x0 (events)\nCall trace:\n  dump_backtrace+0xa4/0x130\n  show_stack+0x20/0x38\n  dump_stack_lvl+0x90/0xd0\n  dump_stack+0x18/0x28\n  __lock_acquire+0x480/0x1ad8\n  lock_acquire+0x114/0x310\n  _raw_spin_lock+0x50/0x70\n  cpc_write+0xcc/0x370\n  cppc_set_perf+0xa0/0x3a8\n  cppc_cpufreq_fast_switch+0x40/0xc0\n  cpufreq_driver_fast_switch+0x4c/0x218\n  sugov_update_shared+0x234/0x280\n  update_load_avg+0x6ec/0x7b8\n  dequeue_entities+0x108/0x830\n  dequeue_task_fair+0x58/0x408\n  __schedule+0x4f0/0x1070\n  schedule+0x54/0x130\n  worker_thread+0xc0/0x2e8\n  kthread+0x130/0x148\n  ret_from_fork+0x10/0x20\n\nsugov_update_shared() locks a raw_spinlock while cpc_write() locks a\nspinlock.\n\nTo have a correct wait-type order, update rmw_lock to a raw spinlock and\nensure that interrupts will be disabled on the CPU holding it.\n\n[ rjw: Changelog edits ]",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "94e8c988468dafde1d2bfe0532a60a3117f6394b",
              "status": "affected",
              "versionType": "git",
              "lessThan": "c46d6b02588000c27b7b869388c2c0278bd0d173"
            },
            {
              "version": "f812ca13a0d3e3aa418da36b66ca40df0d6f9e60",
              "status": "affected",
              "versionType": "git",
              "lessThan": "23039b4aaf1e82e0feea1060834d4ec34262e453"
            },
            {
              "version": "8ad28208be7bbe748e90442c45963ddbef0fd1e2",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0eb2b767c42fac61ab23c4063eb456baa4c2c262"
            },
            {
              "version": "20cde05aa8bcd7a5ff36a609d813189b7cdbe692",
              "status": "affected",
              "versionType": "git",
              "lessThan": "43b1df48d1e7000a214acd1a81b8012ca8a929c8"
            },
            {
              "version": "60949b7b805424f21326b450ca4f1806c06d982e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "1c10941e34c5fdc0357e46a25bd130d9cf40b925"
            },
            {
              "version": "82cee12ada68dfd438c7faca152dbfe042868743",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "6.10.13",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.11"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "5.15.168",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.15.171"
            },
            {
              "version": "6.1.113",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.1.116"
            },
            {
              "version": "6.6.54",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.6.60"
            },
            {
              "version": "6.11.2",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.11.7"
            }
          ]
        }
      ]
    }
  }
}