{"id":"DEBIAN-CVE-2022-49932","details":"In the Linux kernel, the following vulnerability has been resolved:  KVM: VMX: Do _all_ initialization before exposing /dev/kvm to userspace  Call kvm_init() only after _all_ setup is complete, as kvm_init() exposes /dev/kvm to userspace and thus allows userspace to create VMs (and call other ioctls).  E.g. KVM will encounter a NULL pointer when attempting to add a vCPU to the per-CPU loaded_vmcss_on_cpu list if userspace is able to create a VM before vmx_init() configures said list.   BUG: kernel NULL pointer dereference, address: 0000000000000008  #PF: supervisor write access in kernel mode  #PF: error_code(0x0002) - not-present page  PGD 0 P4D 0  Oops: 0002 [#1] SMP  CPU: 6 PID: 1143 Comm: stable Not tainted 6.0.0-rc7+ #988  Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 0.0.0 02/06/2015  RIP: 0010:vmx_vcpu_load_vmcs+0x68/0x230 [kvm_intel]   \u003cTASK\u003e   vmx_vcpu_load+0x16/0x60 [kvm_intel]   kvm_arch_vcpu_load+0x32/0x1f0 [kvm]   vcpu_load+0x2f/0x40 [kvm]   kvm_arch_vcpu_create+0x231/0x310 [kvm]   kvm_vm_ioctl+0x79f/0xe10 [kvm]   ? handle_mm_fault+0xb1/0x220   __x64_sys_ioctl+0x80/0xb0   do_syscall_64+0x2b/0x50   entry_SYSCALL_64_after_hwframe+0x46/0xb0  RIP: 0033:0x7f5a6b05743b   \u003c/TASK\u003e  Modules linked in: vhost_net vhost vhost_iotlb tap kvm_intel(+) kvm irqbypass","modified":"2026-09-01T16:05:33.726069740Z","published":"2025-05-02T16:15:22.070Z","upstream":["CVE-2022-49932"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2022-49932"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:12","purl":"pkg:deb/debian/linux?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1.20-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2022-49932.json"}},{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1.20-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2022-49932.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1.20-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2022-49932.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}