cve/published/2024/CVE-2024-58000.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\nio_uring: prevent reg-wait speculations\n\nWith *ENTER_EXT_ARG_REG instead of passing a user pointer with arguments\nfor the waiting loop the user can specify an offset into a pre-mapped\nregion of memory, in which case the\n[offset, offset + sizeof(io_uring_reg_wait)) will be intepreted as the\nargument.\n\nAs we address a kernel array using a user given index, it'd be a subject\nto speculation type of exploits. Use array_index_nospec() to prevent\nthat. Make sure to pass not the full region size but truncate by the\nmaximum offset allowed considering the structure size."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "io_uring/io_uring.c"
               ],
               "versions": [
                  {
                     "version": "aa00f67adc2c0d6439f81b5a81ff181377c47a7e",
                     "lessThan": "2a6de94df7bfa76d9850443547e7b3333f63a16a",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "aa00f67adc2c0d6439f81b5a81ff181377c47a7e",
                     "lessThan": "29b95ac917927ce9f95bf38797e16333ecb489b1",
                     "status": "affected",
                     "versionType": "git"
                  }
               ]
            },
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "affected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "io_uring/io_uring.c"
               ],
               "versions": [
                  {
                     "version": "6.13",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "6.13",
                     "status": "unaffected",
                     "versionType": "semver"
                  },
                  {
                     "version": "6.13.2",
                     "lessThanOrEqual": "6.13.*",
                     "status": "unaffected",
                     "versionType": "semver"
                  },
                  {
                     "version": "6.14",
                     "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": "6.13",
                           "versionEndExcluding": "6.13.2"
                        },
                        {
                           "vulnerable": true,
                           "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                           "versionStartIncluding": "6.13",
                           "versionEndExcluding": "6.14"
                        }
                     ]
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/2a6de94df7bfa76d9850443547e7b3333f63a16a"
            },
            {
               "url": "https://git.kernel.org/stable/c/29b95ac917927ce9f95bf38797e16333ecb489b1"
            }
         ],
         "title": "io_uring: prevent reg-wait speculations",
         "x_generator": {
            "engine": "bippy-1.2.0"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2024-58000",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}