cve/published/2024/CVE-2024-49920.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\ndrm/amd/display: Check null pointers before multiple uses\n\n[WHAT & HOW]\nPoniters, such as stream_enc and dc->bw_vbios, are null checked previously\nin the same function, so Coverity warns \"implies that stream_enc and\ndc->bw_vbios might be null\". They are used multiple times in the\nsubsequent code and need to be checked.\n\nThis fixes 10 FORWARD_NULL issues reported by Coverity."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/gpu/drm/amd/display/dc/core/dc_hw_sequencer.c",
                  "drivers/gpu/drm/amd/display/dc/hwss/dcn20/dcn20_hwseq.c",
                  "drivers/gpu/drm/amd/display/dc/link/accessories/link_dp_cts.c",
                  "drivers/gpu/drm/amd/display/dc/link/hwss/link_hwss_dio.c",
                  "drivers/gpu/drm/amd/display/dc/resource/dce112/dce112_resource.c",
                  "drivers/gpu/drm/amd/display/dc/resource/dcn32/dcn32_resource.c",
                  "drivers/gpu/drm/amd/display/dc/resource/dcn32/dcn32_resource_helpers.c"
               ],
               "versions": [
                  {
                     "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
                     "lessThan": "26787fb6c2b2ee0d1a7e1574b36f4711ae40fe27",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
                     "lessThan": "fdd5ecbbff751c3b9061d8ebb08e5c96119915b4",
                     "status": "affected",
                     "versionType": "git"
                  }
               ]
            },
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "affected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/gpu/drm/amd/display/dc/core/dc_hw_sequencer.c",
                  "drivers/gpu/drm/amd/display/dc/hwss/dcn20/dcn20_hwseq.c",
                  "drivers/gpu/drm/amd/display/dc/link/accessories/link_dp_cts.c",
                  "drivers/gpu/drm/amd/display/dc/link/hwss/link_hwss_dio.c",
                  "drivers/gpu/drm/amd/display/dc/resource/dce112/dce112_resource.c",
                  "drivers/gpu/drm/amd/display/dc/resource/dcn32/dcn32_resource.c",
                  "drivers/gpu/drm/amd/display/dc/resource/dcn32/dcn32_resource_helpers.c"
               ],
               "versions": [
                  {
                     "version": "6.11.3",
                     "lessThanOrEqual": "6.11.*",
                     "status": "unaffected",
                     "versionType": "semver"
                  },
                  {
                     "version": "6.12",
                     "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:*:*:*:*:*:*:*:*",
                           "versionEndExcluding": "6.11.3"
                        },
                        {
                           "vulnerable": true,
                           "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                           "versionEndExcluding": "6.12"
                        }
                     ]
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/26787fb6c2b2ee0d1a7e1574b36f4711ae40fe27"
            },
            {
               "url": "https://git.kernel.org/stable/c/fdd5ecbbff751c3b9061d8ebb08e5c96119915b4"
            }
         ],
         "title": "drm/amd/display: Check null pointers before multiple uses",
         "x_generator": {
            "engine": "bippy-1.2.0"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2024-49920",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}