{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2022-49932", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-05-01T14:05:17.254Z", "datePublished": "2025-05-02T15:54:53.215Z", "dateUpdated": "2026-05-23T15:23:17.642Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-23T15:23:17.642Z" }, "descriptions": [ { "lang": "en", "value": "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 \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 \n Modules linked in: vhost_net vhost vhost_iotlb tap kvm_intel(+) kvm irqbypass" } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "arch/x86/kvm/vmx/vmx.c" ], "versions": [ { "version": "dbef2808af6c594922fe32833b30f55f35e9da6d", "lessThan": "e136e969d268b9b89329c816c002e53f60e82985", "status": "affected", "versionType": "git" }, { "version": "dbef2808af6c594922fe32833b30f55f35e9da6d", "lessThan": "e28533c08023c4b319b7f2cd77f3f7c9204eb517", "status": "affected", "versionType": "git" }, { "version": "dbef2808af6c594922fe32833b30f55f35e9da6d", "lessThan": "e32b120071ea114efc0b4ddd439547750b85f618", "status": "affected", "versionType": "git" }, { "version": "b2f7d0adc1260fa33ff3e992d18ff15873e68a67", "status": "affected", "versionType": "git" }, { "version": "2c0bf2560ca18abe1451db23b8ef8700c67cc44f", "status": "affected", "versionType": "git" }, { "version": "f9971a898a815c2a6cce2932e91a576b28ed4cce", "status": "affected", "versionType": "git" }, { "version": "40888c31aca3a46f266f1f121679f8e1982df085", "status": "affected", "versionType": "git" }, { "version": "cd3f438fbb9cb60da32dd2b665f7dc9baba1c4ad", "status": "affected", "versionType": "git" }, { "version": "e35a2dc8c7f664ae8a9cc46d19985dc79bfc1083", "status": "affected", "versionType": "git" }, { "version": "4.9.220", "lessThan": "4.10", "status": "affected", "versionType": "semver" }, { "version": "4.14.177", "lessThan": "4.15", "status": "affected", "versionType": "semver" }, { "version": "4.19.116", "lessThan": "4.20", "status": "affected", "versionType": "semver" }, { "version": "5.4.33", "lessThan": "5.5", "status": "affected", "versionType": "semver" }, { "version": "5.5.18", "lessThan": "5.6", "status": "affected", "versionType": "semver" }, { "version": "5.6.5", "lessThan": "5.7", "status": "affected", "versionType": "semver" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "arch/x86/kvm/vmx/vmx.c" ], "versions": [ { "version": "5.7", "status": "affected" }, { "version": "0", "lessThan": "5.7", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.20", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.2.7", "lessThanOrEqual": "6.2.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.3", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.7", "versionEndExcluding": "6.1.20" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.7", "versionEndExcluding": "6.2.7" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.7", "versionEndExcluding": "6.3" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.9.220" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.14.177" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.19.116" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.4.33" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5.18" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.6.5" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/e136e969d268b9b89329c816c002e53f60e82985" }, { "url": "https://git.kernel.org/stable/c/e28533c08023c4b319b7f2cd77f3f7c9204eb517" }, { "url": "https://git.kernel.org/stable/c/e32b120071ea114efc0b4ddd439547750b85f618" } ], "title": "KVM: VMX: Do _all_ initialization before exposing /dev/kvm to userspace", "x_generator": { "engine": "bippy-1.2.0" } } } }