{
  "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-2024-49976",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2024-49976",
    "idYear": 2024,
    "status": "PUBLISHED",
    "publishedAt": "2024-10-21T18:02:23.774Z",
    "updatedAt": "2026-05-23T15:54:11.904Z",
    "importedAt": "2026-10-24T01:57:16.009Z",
    "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": "tracing/timerlat: Drop interface_lock in stop_kthread()",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\ntracing/timerlat: Drop interface_lock in stop_kthread()\n\nstop_kthread() is the offline callback for \"trace/osnoise:online\", since\ncommit 5bfbcd1ee57b (\"tracing/timerlat: Add interface_lock around clearing\nof kthread in stop_kthread()\"), the following ABBA deadlock scenario is\nintroduced:\n\nT1                            | T2 [BP]               | T3 [AP]\nosnoise_hotplug_workfn()      | work_for_cpu_fn()     | cpuhp_thread_fun()\n                              |   _cpu_down()         |   osnoise_cpu_die()\n  mutex_lock(&interface_lock) |                       |     stop_kthread()\n                              |     cpus_write_lock() |       mutex_lock(&interface_lock)\n  cpus_read_lock()            |     cpuhp_kick_ap()   |\n\nAs the interface_lock here in just for protecting the \"kthread\" field of\nthe osn_var, use xchg() instead to fix this issue. Also use\nfor_each_online_cpu() back in stop_per_cpu_kthreads() as it can take\ncpu_read_lock() again.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "b4fdabffae14cca2c80d99bd81f3f27239ac7f5e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "a4a05ceffe8fad68b45de38fe2311bda619e76e2"
            },
            {
              "version": "4679272d5252720746fd9c5465352cbc5665f230",
              "status": "affected",
              "versionType": "git",
              "lessThan": "09cb44cc3d3df7ade2cebc939d6257a2fa8afc7a"
            },
            {
              "version": "5bfbcd1ee57b607fd29e4645c7f350dd385dd9ad",
              "status": "affected",
              "versionType": "git",
              "lessThan": "db8571a9a098086608c11a15856ff585789e67e8"
            },
            {
              "version": "5bfbcd1ee57b607fd29e4645c7f350dd385dd9ad",
              "status": "affected",
              "versionType": "git",
              "lessThan": "b484a02c9cedf8703eff8f0756f94618004bd165"
            },
            {
              "version": "6.6.51",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.6.55"
            },
            {
              "version": "6.10.10",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.10.14"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "6.11",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "6.11"
            },
            {
              "version": "6.6.55",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.10.14",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.10.*"
            },
            {
              "version": "6.11.3",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.11.*"
            },
            {
              "version": "6.12",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}