cve/published/2024/CVE-2024-35987.json

{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nriscv: Fix loading 64-bit NOMMU kernels past the start of RAM\n\ncommit 3335068f8721 (\"riscv: Use PUD/P4D/PGD pages for the linear\nmapping\") added logic to allow using RAM below the kernel load address.\nHowever, this does not work for NOMMU, where PAGE_OFFSET is fixed to the\nkernel load address. Since that range of memory corresponds to PFNs\nbelow ARCH_PFN_OFFSET, mm initialization runs off the beginning of\nmem_map and corrupts adjacent kernel memory. Fix this by restoring the\nprevious behavior for NOMMU kernels."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "arch/riscv/include/asm/page.h",
                  "arch/riscv/mm/init.c"
               ],
               "versions": [
                  {
                     "version": "3335068f87217ea59d08f462187dc856652eea15",
                     "lessThan": "b008e327fa570aca210f98c817757649bae56694",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "3335068f87217ea59d08f462187dc856652eea15",
                     "lessThan": "ea6628e4e2353978af7e3b4ad4fdaab6149acf3d",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "3335068f87217ea59d08f462187dc856652eea15",
                     "lessThan": "aea702dde7e9876fb00571a2602f25130847bf0f",
                     "status": "affected",
                     "versionType": "git"
                  }
               ]
            },
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "affected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "arch/riscv/include/asm/page.h",
                  "arch/riscv/mm/init.c"
               ],
               "versions": [
                  {
                     "version": "6.4",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "6.4",
                     "status": "unaffected",
                     "versionType": "semver"
                  },
                  {
                     "version": "6.6.30",
                     "lessThanOrEqual": "6.6.*",
                     "status": "unaffected",
                     "versionType": "semver"
                  },
                  {
                     "version": "6.8.9",
                     "lessThanOrEqual": "6.8.*",
                     "status": "unaffected",
                     "versionType": "semver"
                  },
                  {
                     "version": "6.9",
                     "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": "6.4",
                           "versionEndExcluding": "6.6.30"
                        },
                        {
                           "vulnerable": true,
                           "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                           "versionStartIncluding": "6.4",
                           "versionEndExcluding": "6.8.9"
                        },
                        {
                           "vulnerable": true,
                           "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                           "versionStartIncluding": "6.4",
                           "versionEndExcluding": "6.9"
                        }
                     ]
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/b008e327fa570aca210f98c817757649bae56694"
            },
            {
               "url": "https://git.kernel.org/stable/c/ea6628e4e2353978af7e3b4ad4fdaab6149acf3d"
            },
            {
               "url": "https://git.kernel.org/stable/c/aea702dde7e9876fb00571a2602f25130847bf0f"
            }
         ],
         "title": "riscv: Fix loading 64-bit NOMMU kernels past the start of RAM",
         "x_generator": {
            "engine": "bippy-1.2.0"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2024-35987",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}