{
  "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-2024-50114",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2024-50114",
    "idYear": 2024,
    "status": "PUBLISHED",
    "publishedAt": "2024-11-05T17:10:45.984Z",
    "updatedAt": "2026-08-05T11:41:44.557Z",
    "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": "KVM: arm64: Unregister redistributor for failed vCPU creation",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: arm64: Unregister redistributor for failed vCPU creation\n\nAlex reports that syzkaller has managed to trigger a use-after-free when\ntearing down a VM:\n\n  BUG: KASAN: slab-use-after-free in kvm_put_kvm+0x300/0xe68 virt/kvm/kvm_main.c:5769\n  Read of size 8 at addr ffffff801c6890d0 by task syz.3.2219/10758\n\n  CPU: 3 UID: 0 PID: 10758 Comm: syz.3.2219 Not tainted 6.11.0-rc6-dirty #64\n  Hardware name: linux,dummy-virt (DT)\n  Call trace:\n   dump_backtrace+0x17c/0x1a8 arch/arm64/kernel/stacktrace.c:317\n   show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:324\n   __dump_stack lib/dump_stack.c:93 [inline]\n   dump_stack_lvl+0x94/0xc0 lib/dump_stack.c:119\n   print_report+0x144/0x7a4 mm/kasan/report.c:377\n   kasan_report+0xcc/0x128 mm/kasan/report.c:601\n   __asan_report_load8_noabort+0x20/0x2c mm/kasan/report_generic.c:381\n   kvm_put_kvm+0x300/0xe68 virt/kvm/kvm_main.c:5769\n   kvm_vm_release+0x4c/0x60 virt/kvm/kvm_main.c:1409\n   __fput+0x198/0x71c fs/file_table.c:422\n   ____fput+0x20/0x30 fs/file_table.c:450\n   task_work_run+0x1cc/0x23c kernel/task_work.c:228\n   do_notify_resume+0x144/0x1a0 include/linux/resume_user_mode.h:50\n   el0_svc+0x64/0x68 arch/arm64/kernel/entry-common.c:169\n   el0t_64_sync_handler+0x90/0xfc arch/arm64/kernel/entry-common.c:730\n   el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598\n\nUpon closer inspection, it appears that we do not properly tear down the\nMMIO registration for a vCPU that fails creation late in the game, e.g.\na vCPU w/ the same ID already exists in the VM.\n\nIt is important to consider the context of commit that introduced this bug\nby moving the unregistration out of __kvm_vgic_vcpu_destroy(). That\nchange correctly sought to avoid an srcu v. config_lock inversion by\nbreaking up the vCPU teardown into two parts, one guarded by the\nconfig_lock.\n\nFix the use-after-free while avoiding lock inversion by adding a\nspecial-cased unregistration to __kvm_vgic_vcpu_destroy(). This is safe\nbecause failed vCPUs are torn down outside of the config_lock.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "f616506754d34bcfdbfbc7508b562e5c98461e9a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "6bcc2890b883ba1d16b8942937750565f6e9db0d"
            },
            {
              "version": "f616506754d34bcfdbfbc7508b562e5c98461e9a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ae8f8b37610269009326f4318df161206c59843e"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "6.11",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "6.11"
            },
            {
              "version": "6.11.6",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.11.*"
            },
            {
              "version": "6.12",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}