{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfuse: Initialize beyond-EOF page contents before setting uptodate\n\nfuse_notify_store(), unlike fuse_do_readpage(), does not enable page\nzeroing (because it can be used to change partial page contents).\n\nSo fuse_notify_store() must be more careful to fully initialize page\ncontents (including parts of the page that are beyond end-of-file)\nbefore marking the page uptodate.\n\nThe current code can leave beyond-EOF page contents uninitialized, which\nmakes these uninitialized page contents visible to userspace via mmap().\n\nThis is an information leak, but only affects systems which do not\nenable init-on-alloc (via CONFIG_INIT_ON_ALLOC_DEFAULT_ON=y or the\ncorresponding kernel command line parameter)."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "fs/fuse/dev.c"
               ],
               "versions": [
                  {
                     "version": "a1d75f258230",
                     "lessThan": "49934861514d",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "a1d75f258230",
                     "lessThan": "33168db352c7",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "a1d75f258230",
                     "lessThan": "4690e2171f65",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "a1d75f258230",
                     "lessThan": "8c78303eafbf",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "a1d75f258230",
                     "lessThan": "831433527773",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "a1d75f258230",
                     "lessThan": "ac42e0f0eb66",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "a1d75f258230",
                     "lessThan": "18a067240817",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "a1d75f258230",
                     "lessThan": "3c0da3d163eb",
                     "status": "affected",
                     "versionType": "git"
                  }
               ]
            },
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "affected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "fs/fuse/dev.c"
               ],
               "versions": [
                  {
                     "version": "2.6.36",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "2.6.36",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "4.19.321",
                     "lessThanOrEqual": "4.19.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.4.283",
                     "lessThanOrEqual": "5.4.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.10.225",
                     "lessThanOrEqual": "5.10.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.15.166",
                     "lessThanOrEqual": "5.15.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.1.107",
                     "lessThanOrEqual": "6.1.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.6.48",
                     "lessThanOrEqual": "6.6.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.10.7",
                     "lessThanOrEqual": "6.10.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.11",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/49934861514d36d0995be8e81bb3312a499d8d9a"
            },
            {
               "url": "https://git.kernel.org/stable/c/33168db352c7b56ae18aa55c2cae1a1c5905d30e"
            },
            {
               "url": "https://git.kernel.org/stable/c/4690e2171f651e2b415e3941ce17f2f7b813aff6"
            },
            {
               "url": "https://git.kernel.org/stable/c/8c78303eafbf85a728dd84d1750e89240c677dd9"
            },
            {
               "url": "https://git.kernel.org/stable/c/831433527773e665bdb635ab5783d0b95d1246f4"
            },
            {
               "url": "https://git.kernel.org/stable/c/ac42e0f0eb66af966015ee33fd355bc6f5d80cd6"
            },
            {
               "url": "https://git.kernel.org/stable/c/18a067240817bee8a9360539af5d79a4bf5398a5"
            },
            {
               "url": "https://git.kernel.org/stable/c/3c0da3d163eb32f1f91891efaade027fa9b245b9"
            }
         ],
         "title": "fuse: Initialize beyond-EOF page contents before setting uptodate",
         "x_generator": {
            "engine": "bippy-c9c4e1df01b2"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2024-44947",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}