{
  "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-2022-49759",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2022-49759",
    "idYear": 2022,
    "status": "PUBLISHED",
    "publishedAt": "2025-03-27T16:43:06.197Z",
    "updatedAt": "2026-05-11T19:06:13.863Z",
    "importedAt": "2026-10-24T01:56:49.724Z",
    "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": "VMCI: Use threaded irqs instead of tasklets",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nVMCI: Use threaded irqs instead of tasklets\n\nThe vmci_dispatch_dgs() tasklet function calls vmci_read_data()\nwhich uses wait_event() resulting in invalid sleep in an atomic\ncontext (and therefore potentially in a deadlock).\n\nUse threaded irqs to fix this issue and completely remove usage\nof tasklets.\n\n[   20.264639] BUG: sleeping function called from invalid context at drivers/misc/vmw_vmci/vmci_guest.c:145\n[   20.264643] in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 762, name: vmtoolsd\n[   20.264645] preempt_count: 101, expected: 0\n[   20.264646] RCU nest depth: 0, expected: 0\n[   20.264647] 1 lock held by vmtoolsd/762:\n[   20.264648]  #0: ffff0000874ae440 (sk_lock-AF_VSOCK){+.+.}-{0:0}, at: vsock_connect+0x60/0x330 [vsock]\n[   20.264658] Preemption disabled at:\n[   20.264659] [<ffff80000151d7d8>] vmci_send_datagram+0x44/0xa0 [vmw_vmci]\n[   20.264665] CPU: 0 PID: 762 Comm: vmtoolsd Not tainted 5.19.0-0.rc8.20220727git39c3c396f813.60.fc37.aarch64 #1\n[   20.264667] Hardware name: VMware, Inc. VBSA/VBSA, BIOS VEFI 12/31/2020\n[   20.264668] Call trace:\n[   20.264669]  dump_backtrace+0xc4/0x130\n[   20.264672]  show_stack+0x24/0x80\n[   20.264673]  dump_stack_lvl+0x88/0xb4\n[   20.264676]  dump_stack+0x18/0x34\n[   20.264677]  __might_resched+0x1a0/0x280\n[   20.264679]  __might_sleep+0x58/0x90\n[   20.264681]  vmci_read_data+0x74/0x120 [vmw_vmci]\n[   20.264683]  vmci_dispatch_dgs+0x64/0x204 [vmw_vmci]\n[   20.264686]  tasklet_action_common.constprop.0+0x13c/0x150\n[   20.264688]  tasklet_action+0x40/0x50\n[   20.264689]  __do_softirq+0x23c/0x6b4\n[   20.264690]  __irq_exit_rcu+0x104/0x214\n[   20.264691]  irq_exit_rcu+0x1c/0x50\n[   20.264693]  el1_interrupt+0x38/0x6c\n[   20.264695]  el1h_64_irq_handler+0x18/0x24\n[   20.264696]  el1h_64_irq+0x68/0x6c\n[   20.264697]  preempt_count_sub+0xa4/0xe0\n[   20.264698]  _raw_spin_unlock_irqrestore+0x64/0xb0\n[   20.264701]  vmci_send_datagram+0x7c/0xa0 [vmw_vmci]\n[   20.264703]  vmci_datagram_dispatch+0x84/0x100 [vmw_vmci]\n[   20.264706]  vmci_datagram_send+0x2c/0x40 [vmw_vmci]\n[   20.264709]  vmci_transport_send_control_pkt+0xb8/0x120 [vmw_vsock_vmci_transport]\n[   20.264711]  vmci_transport_connect+0x40/0x7c [vmw_vsock_vmci_transport]\n[   20.264713]  vsock_connect+0x278/0x330 [vsock]\n[   20.264715]  __sys_connect_file+0x8c/0xc0\n[   20.264718]  __sys_connect+0x84/0xb4\n[   20.264720]  __arm64_sys_connect+0x2c/0x3c\n[   20.264721]  invoke_syscall+0x78/0x100\n[   20.264723]  el0_svc_common.constprop.0+0x68/0x124\n[   20.264724]  do_el0_svc+0x38/0x4c\n[   20.264725]  el0_svc+0x60/0x180\n[   20.264726]  el0t_64_sync_handler+0x11c/0x150\n[   20.264728]  el0t_64_sync+0x190/0x194",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "463713eb6164b6577f8e91447c7745628215531b",
              "status": "affected",
              "versionType": "git",
              "lessThan": "548ea9dd5e01b0ecf53d2563004c80abd636743d"
            },
            {
              "version": "463713eb6164b6577f8e91447c7745628215531b",
              "status": "affected",
              "versionType": "git",
              "lessThan": "3daed6345d5880464f46adab871d208e1baa2f3a"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.18",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.18"
            },
            {
              "version": "6.1.8",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.2",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}