{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2022-48764","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-06-20T11:09:39.060Z","datePublished":"2024-06-20T11:13:41.170Z","dateUpdated":"2025-05-04T08:22:35.952Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-05-04T08:22:35.952Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: x86: Free kvm_cpuid_entry2 array on post-KVM_RUN KVM_SET_CPUID{,2}\n\nFree the \"struct kvm_cpuid_entry2\" array on successful post-KVM_RUN\nKVM_SET_CPUID{,2} to fix a memory leak, the callers of kvm_set_cpuid()\nfree the array only on failure.\n\n BUG: memory leak\n unreferenced object 0xffff88810963a800 (size 2048):\n  comm \"syz-executor025\", pid 3610, jiffies 4294944928 (age 8.080s)\n  hex dump (first 32 bytes):\n    00 00 00 00 00 00 00 00 00 00 00 00 0d 00 00 00  ................\n    47 65 6e 75 6e 74 65 6c 69 6e 65 49 00 00 00 00  GenuntelineI....\n  backtrace:\n    [<ffffffff814948ee>] kmalloc_node include/linux/slab.h:604 [inline]\n    [<ffffffff814948ee>] kvmalloc_node+0x3e/0x100 mm/util.c:580\n    [<ffffffff814950f2>] kvmalloc include/linux/slab.h:732 [inline]\n    [<ffffffff814950f2>] vmemdup_user+0x22/0x100 mm/util.c:199\n    [<ffffffff8109f5ff>] kvm_vcpu_ioctl_set_cpuid2+0x8f/0xf0 arch/x86/kvm/cpuid.c:423\n    [<ffffffff810711b9>] kvm_arch_vcpu_ioctl+0xb99/0x1e60 arch/x86/kvm/x86.c:5251\n    [<ffffffff8103e92d>] kvm_vcpu_ioctl+0x4ad/0x950 arch/x86/kvm/../../../virt/kvm/kvm_main.c:4066\n    [<ffffffff815afacc>] vfs_ioctl fs/ioctl.c:51 [inline]\n    [<ffffffff815afacc>] __do_sys_ioctl fs/ioctl.c:874 [inline]\n    [<ffffffff815afacc>] __se_sys_ioctl fs/ioctl.c:860 [inline]\n    [<ffffffff815afacc>] __x64_sys_ioctl+0xfc/0x140 fs/ioctl.c:860\n    [<ffffffff844a3335>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]\n    [<ffffffff844a3335>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80\n    [<ffffffff84600068>] entry_SYSCALL_64_after_hwframe+0x44/0xae"}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/x86/kvm/cpuid.c"],"versions":[{"version":"24e7590c60aa9487b8e43583dc9885f62f8216c1","lessThan":"b9ee734a14bb685b2088f2176d82b34cb4e30dbc","status":"affected","versionType":"git"},{"version":"c6617c61e8fe44b9e9fdfede921f61cac6b5149d","lessThan":"811f95ff95270e6048197821434d9301e3d7f07c","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/x86/kvm/cpuid.c"],"versions":[{"version":"5.16.3","lessThan":"5.16.5","status":"affected","versionType":"semver"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16.3","versionEndExcluding":"5.16.5"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/b9ee734a14bb685b2088f2176d82b34cb4e30dbc"},{"url":"https://git.kernel.org/stable/c/811f95ff95270e6048197821434d9301e3d7f07c"}],"title":"KVM: x86: Free kvm_cpuid_entry2 array on post-KVM_RUN KVM_SET_CPUID{,2}","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"problemTypes":[{"descriptions":[{"type":"CWE","lang":"en","description":"CWE-noinfo Not enough information"}]}],"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":5.3,"attackVector":"LOCAL","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L","integrityImpact":"LOW","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"LOW","privilegesRequired":"LOW","confidentialityImpact":"LOW"}},{"other":{"type":"ssvc","content":{"timestamp":"2024-06-20T13:26:56.412300Z","id":"CVE-2022-48764","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2024-10-30T15:59:15.398Z"}},{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-03T15:25:01.597Z"},"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/stable/c/b9ee734a14bb685b2088f2176d82b34cb4e30dbc","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/811f95ff95270e6048197821434d9301e3d7f07c","tags":["x_transferred"]}]}]}}