{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nerofs: fix out-of-bound access when z_erofs_gbuf_growsize() partially fails\n\nIf z_erofs_gbuf_growsize() partially fails on a global buffer due to\nmemory allocation failure or fault injection (as reported by syzbot [1]),\nnew pages need to be freed by comparing to the existing pages to avoid\nmemory leaks.\n\nHowever, the old gbuf->pages[] array may not be large enough, which can\nlead to null-ptr-deref or out-of-bound access.\n\nFix this by checking against gbuf->nrpages in advance.\n\n[1] https://lore.kernel.org/r/000000000000f7b96e062018c6e3@google.com"
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "fs/erofs/zutil.c"
               ],
               "versions": [
                  {
                     "version": "d6db47e571dc",
                     "lessThan": "49c0e0819980",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "d6db47e571dc",
                     "lessThan": "0005e01e1e87",
                     "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/erofs/zutil.c"
               ],
               "versions": [
                  {
                     "version": "6.10",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "6.10",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.10.8",
                     "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/49c0e081998008cde0c872c0ff9affa1ece4b878"
            },
            {
               "url": "https://git.kernel.org/stable/c/0005e01e1e875c5e27130c5e2ed0189749d1e08a"
            }
         ],
         "title": "erofs: fix out-of-bound access when z_erofs_gbuf_growsize() partially fails",
         "x_generator": {
            "engine": "bippy-c9c4e1df01b2"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2024-46688",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}