cve/published/2024/CVE-2024-43819.json

{
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         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
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         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nkvm: s390: Reject memory region operations for ucontrol VMs\n\nThis change rejects the KVM_SET_USER_MEMORY_REGION and\nKVM_SET_USER_MEMORY_REGION2 ioctls when called on a ucontrol VM.\nThis is necessary since ucontrol VMs have kvm->arch.gmap set to 0 and\nwould thus result in a null pointer dereference further in.\nMemory management needs to be performed in userspace and using the\nioctls KVM_S390_UCAS_MAP and KVM_S390_UCAS_UNMAP.\n\nAlso improve s390 specific documentation for KVM_SET_USER_MEMORY_REGION\nand KVM_SET_USER_MEMORY_REGION2.\n\n[frankja@linux.ibm.com: commit message spelling fix, subject prefix fix]"
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "Documentation/virt/kvm/api.rst",
                  "arch/s390/kvm/kvm-s390.c"
               ],
               "versions": [
                  {
                     "version": "27e0393f15fc8bc855c6a888387ff5ffd2181089",
                     "lessThan": "49c9945c054df4c22008e2bf87ca74d3e2507aa6",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "27e0393f15fc8bc855c6a888387ff5ffd2181089",
                     "lessThan": "7816e58967d0e6cadce05c8540b47ed027dc2499",
                     "status": "affected",
                     "versionType": "git"
                  }
               ]
            },
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "affected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "Documentation/virt/kvm/api.rst",
                  "arch/s390/kvm/kvm-s390.c"
               ],
               "versions": [
                  {
                     "version": "3.4",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "3.4",
                     "status": "unaffected",
                     "versionType": "semver"
                  },
                  {
                     "version": "6.10.3",
                     "lessThanOrEqual": "6.10.*",
                     "status": "unaffected",
                     "versionType": "semver"
                  },
                  {
                     "version": "6.11",
                     "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": "3.4",
                           "versionEndExcluding": "6.10.3"
                        },
                        {
                           "vulnerable": true,
                           "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                           "versionStartIncluding": "3.4",
                           "versionEndExcluding": "6.11"
                        }
                     ]
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/49c9945c054df4c22008e2bf87ca74d3e2507aa6"
            },
            {
               "url": "https://git.kernel.org/stable/c/7816e58967d0e6cadce05c8540b47ed027dc2499"
            }
         ],
         "title": "kvm: s390: Reject memory region operations for ucontrol VMs",
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            "engine": "bippy-1.2.0"
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      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2024-43819",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
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