cve/published/2021/CVE-2021-47486.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, bpf: Fix potential NULL dereference\n\nThe bpf_jit_binary_free() function requires a non-NULL argument. When\nthe RISC-V BPF JIT fails to converge in NR_JIT_ITERATIONS steps,\njit_data->header will be NULL, which triggers a NULL\ndereference. Avoid this by checking the argument, prior calling the\nfunction."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "arch/riscv/net/bpf_jit_core.c"
               ],
               "versions": [
                  {
                     "version": "ca6cb5447ceca6a87d6b62c9e5d41042c34f7ffa",
                     "lessThan": "cac6b043cea3e120f4fccec16f7381747cbfdc0d",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "ca6cb5447ceca6a87d6b62c9e5d41042c34f7ffa",
                     "lessThan": "e1b80a5ebe5431caeb20f88c32d4a024777a2d41",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "ca6cb5447ceca6a87d6b62c9e5d41042c34f7ffa",
                     "lessThan": "27de809a3d83a6199664479ebb19712533d6fd9b",
                     "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/net/bpf_jit_core.c"
               ],
               "versions": [
                  {
                     "version": "5.7",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "5.7",
                     "status": "unaffected",
                     "versionType": "semver"
                  },
                  {
                     "version": "5.10.77",
                     "lessThanOrEqual": "5.10.*",
                     "status": "unaffected",
                     "versionType": "semver"
                  },
                  {
                     "version": "5.14.16",
                     "lessThanOrEqual": "5.14.*",
                     "status": "unaffected",
                     "versionType": "semver"
                  },
                  {
                     "version": "5.15",
                     "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": "5.7",
                           "versionEndExcluding": "5.10.77"
                        },
                        {
                           "vulnerable": true,
                           "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                           "versionStartIncluding": "5.7",
                           "versionEndExcluding": "5.14.16"
                        },
                        {
                           "vulnerable": true,
                           "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                           "versionStartIncluding": "5.7",
                           "versionEndExcluding": "5.15"
                        }
                     ]
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/cac6b043cea3e120f4fccec16f7381747cbfdc0d"
            },
            {
               "url": "https://git.kernel.org/stable/c/e1b80a5ebe5431caeb20f88c32d4a024777a2d41"
            },
            {
               "url": "https://git.kernel.org/stable/c/27de809a3d83a6199664479ebb19712533d6fd9b"
            }
         ],
         "title": "riscv, bpf: Fix potential NULL dereference",
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            "engine": "bippy-1.2.0"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2021-47486",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}