{"cve":"CVE-2022-49932","nvd":{"published":"2025-05-02T16:15:22.070","modified":"2026-06-17T05:19:34.057","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: VMX: Do _all_ initialization before exposing /dev/kvm to userspace\n\nCall kvm_init() only after _all_ setup is complete, as kvm_init() exposes\n/dev/kvm to userspace and thus allows userspace to create VMs (and call\nother ioctls).  E.g. KVM will encounter a NULL pointer when attempting to\nadd a vCPU to the per-CPU loaded_vmcss_on_cpu list if userspace is able to\ncreate a VM before vmx_init() configures said list.\n\n BUG: kernel NULL pointer dereference, address: 0000000000000008\n #PF: supervisor write access in kernel mode\n #PF: error_code(0x0002) - not-present page\n PGD 0 P4D 0\n Oops: 0002 [#1] SMP\n CPU: 6 PID: 1143 Comm: stable Not tainted 6.0.0-rc7+ #988\n Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 0.0.0 02/06/2015\n RIP: 0010:vmx_vcpu_load_vmcs+0x68/0x230 [kvm_intel]\n  <TASK>\n  vmx_vcpu_load+0x16/0x60 [kvm_intel]\n  kvm_arch_vcpu_load+0x32/0x1f0 [kvm]\n  vcpu_load+0x2f/0x40 [kvm]\n  kvm_arch_vcpu_create+0x231/0x310 [kvm]\n  kvm_vm_ioctl+0x79f/0xe10 [kvm]\n  ? handle_mm_fault+0xb1/0x220\n  __x64_sys_ioctl+0x80/0xb0\n  do_syscall_64+0x2b/0x50\n  entry_SYSCALL_64_after_hwframe+0x46/0xb0\n RIP: 0033:0x7f5a6b05743b\n  </TASK>\n Modules linked in: vhost_net vhost vhost_iotlb tap kvm_intel(+) kvm irqbypass","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":["CWE-476"],"references":["https://git.kernel.org/stable/c/e136e969d268b9b89329c816c002e53f60e82985","https://git.kernel.org/stable/c/e28533c08023c4b319b7f2cd77f3f7c9204eb517","https://git.kernel.org/stable/c/e32b120071ea114efc0b4ddd439547750b85f618"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T22:01:22.920403922+00:00"},"epss":{"cve":"CVE-2022-49932","score":0.00214,"percentile":0.11823,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}