cve/published/2024/CVE-2024-57798.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/dp_mst: Ensure mst_primary pointer is valid in drm_dp_mst_handle_up_req()\n\nWhile receiving an MST up request message from one thread in\ndrm_dp_mst_handle_up_req(), the MST topology could be removed from\nanother thread via drm_dp_mst_topology_mgr_set_mst(false), freeing\nmst_primary and setting drm_dp_mst_topology_mgr::mst_primary to NULL.\nThis could lead to a NULL deref/use-after-free of mst_primary in\ndrm_dp_mst_handle_up_req().\n\nAvoid the above by holding a reference for mst_primary in\ndrm_dp_mst_handle_up_req() while it's used.\n\nv2: Fix kfreeing the request if getting an mst_primary reference fails."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/gpu/drm/display/drm_dp_mst_topology.c"
               ],
               "versions": [
                  {
                     "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
                     "lessThan": "f61b2e5e7821f868d6afc22382a66a30ee780ba0",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
                     "lessThan": "9735d40f5fde9970aa46e828ecc85c32571d58a2",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
                     "lessThan": "ce55818b2d3a999f886af91679589e4644ff1dc8",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
                     "lessThan": "e54b00086f7473dbda1a7d6fc47720ced157c6a8",
                     "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/display/drm_dp_mst_topology.c"
               ],
               "versions": [
                  {
                     "version": "6.1.123",
                     "lessThanOrEqual": "6.1.*",
                     "status": "unaffected",
                     "versionType": "semver"
                  },
                  {
                     "version": "6.6.69",
                     "lessThanOrEqual": "6.6.*",
                     "status": "unaffected",
                     "versionType": "semver"
                  },
                  {
                     "version": "6.12.8",
                     "lessThanOrEqual": "6.12.*",
                     "status": "unaffected",
                     "versionType": "semver"
                  },
                  {
                     "version": "6.13",
                     "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": "6.1.123"
                        },
                        {
                           "vulnerable": true,
                           "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                           "versionEndExcluding": "6.6.69"
                        },
                        {
                           "vulnerable": true,
                           "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                           "versionEndExcluding": "6.12.8"
                        },
                        {
                           "vulnerable": true,
                           "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                           "versionEndExcluding": "6.13"
                        }
                     ]
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/f61b2e5e7821f868d6afc22382a66a30ee780ba0"
            },
            {
               "url": "https://git.kernel.org/stable/c/9735d40f5fde9970aa46e828ecc85c32571d58a2"
            },
            {
               "url": "https://git.kernel.org/stable/c/ce55818b2d3a999f886af91679589e4644ff1dc8"
            },
            {
               "url": "https://git.kernel.org/stable/c/e54b00086f7473dbda1a7d6fc47720ced157c6a8"
            }
         ],
         "title": "drm/dp_mst: Ensure mst_primary pointer is valid in drm_dp_mst_handle_up_req()",
         "x_generator": {
            "engine": "bippy-1.2.0"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2024-57798",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}