{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: correctly handle malformed BPF_CORE_TYPE_ID_LOCAL relos\n\nIn case of malformed relocation record of kind BPF_CORE_TYPE_ID_LOCAL\nreferencing a non-existing BTF type, function bpf_core_calc_relo_insn\nwould cause a null pointer deference.\n\nFix this by adding a proper check upper in call stack, as malformed\nrelocation records could be passed from user space.\n\nSimplest reproducer is a program:\n\n    r0 = 0\n    exit\n\nWith a single relocation record:\n\n    .insn_off = 0,          /* patch first instruction */\n    .type_id = 100500,      /* this type id does not exist */\n    .access_str_off = 6,    /* offset of string \"0\" */\n    .kind = BPF_CORE_TYPE_ID_LOCAL,\n\nSee the link for original reproducer or next commit for a test case."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "kernel/bpf/btf.c"
               ],
               "versions": [
                  {
                     "version": "74753e1462e7",
                     "lessThan": "dc7ce14f00bc",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "74753e1462e7",
                     "lessThan": "2288b54b96dc",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "74753e1462e7",
                     "lessThan": "584cd3ff792e",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "74753e1462e7",
                     "lessThan": "e7e9c5b2dda2",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "74753e1462e7",
                     "lessThan": "3d2786d65aaa",
                     "status": "affected",
                     "versionType": "git"
                  }
               ]
            },
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "affected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "kernel/bpf/btf.c"
               ],
               "versions": [
                  {
                     "version": "5.17",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "5.17",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.1.113",
                     "lessThanOrEqual": "6.1.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.6.54",
                     "lessThanOrEqual": "6.6.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.10.13",
                     "lessThanOrEqual": "6.10.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.11.2",
                     "lessThanOrEqual": "6.11.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.12-rc1",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/dc7ce14f00bcd50641f2110b7a32aa6552e0780f"
            },
            {
               "url": "https://git.kernel.org/stable/c/2288b54b96dcb55bedebcef3572bb8821fc5e708"
            },
            {
               "url": "https://git.kernel.org/stable/c/584cd3ff792e1edbea20b2a7df55897159b0be3e"
            },
            {
               "url": "https://git.kernel.org/stable/c/e7e9c5b2dda29067332df2a85b0141a92b41f218"
            },
            {
               "url": "https://git.kernel.org/stable/c/3d2786d65aaa954ebd3fcc033ada433e10da21c4"
            }
         ],
         "title": "bpf: correctly handle malformed BPF_CORE_TYPE_ID_LOCAL relos",
         "x_generator": {
            "engine": "bippy-c9c4e1df01b2"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2024-49850",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}