{
  "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-2023-53656",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2023-53656",
    "idYear": 2023,
    "status": "PUBLISHED",
    "publishedAt": "2025-10-07T15:21:17.572Z",
    "updatedAt": "2026-05-11T19:49:22.525Z",
    "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": "drivers/perf: hisi: Don't migrate perf to the CPU going to teardown",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrivers/perf: hisi: Don't migrate perf to the CPU going to teardown\n\nThe driver needs to migrate the perf context if the current using CPU going\nto teardown. By the time calling the cpuhp::teardown() callback the\ncpu_online_mask() hasn't updated yet and still includes the CPU going to\nteardown. In current driver's implementation we may migrate the context\nto the teardown CPU and leads to the below calltrace:\n\n...\n[  368.104662][  T932] task:cpuhp/0         state:D stack:    0 pid:   15 ppid:     2 flags:0x00000008\n[  368.113699][  T932] Call trace:\n[  368.116834][  T932]  __switch_to+0x7c/0xbc\n[  368.120924][  T932]  __schedule+0x338/0x6f0\n[  368.125098][  T932]  schedule+0x50/0xe0\n[  368.128926][  T932]  schedule_preempt_disabled+0x18/0x24\n[  368.134229][  T932]  __mutex_lock.constprop.0+0x1d4/0x5dc\n[  368.139617][  T932]  __mutex_lock_slowpath+0x1c/0x30\n[  368.144573][  T932]  mutex_lock+0x50/0x60\n[  368.148579][  T932]  perf_pmu_migrate_context+0x84/0x2b0\n[  368.153884][  T932]  hisi_pcie_pmu_offline_cpu+0x90/0xe0 [hisi_pcie_pmu]\n[  368.160579][  T932]  cpuhp_invoke_callback+0x2a0/0x650\n[  368.165707][  T932]  cpuhp_thread_fun+0xe4/0x190\n[  368.170316][  T932]  smpboot_thread_fn+0x15c/0x1a0\n[  368.175099][  T932]  kthread+0x108/0x13c\n[  368.179012][  T932]  ret_from_fork+0x10/0x18\n...\n\nUse function cpumask_any_but() to find one correct active cpu to fixes\nthis issue.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "8404b0fbc7fbd42e5c5d28cdedd450e70829c77a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "be9c8c9c84b6d25a7b7d39954030aba6f759feb6"
            },
            {
              "version": "8404b0fbc7fbd42e5c5d28cdedd450e70829c77a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "f564e543a43d0f1cabac791672c8a6fc78ce12d0"
            },
            {
              "version": "8404b0fbc7fbd42e5c5d28cdedd450e70829c77a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "b64569897d86b611befbb895d815280fea94e1ed"
            },
            {
              "version": "8404b0fbc7fbd42e5c5d28cdedd450e70829c77a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "7a6a9f1c5a0a875a421db798d4b2ee022dc1ee1a"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.17",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.17"
            },
            {
              "version": "6.1.39",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.3.13",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.3.*"
            },
            {
              "version": "6.4.4",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.4.*"
            },
            {
              "version": "6.5",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}