{
   "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/vmwgfx: Fix possible null pointer derefence with invalid contexts\n\nvmw_context_cotable can return either an error or a null pointer and its\nusage sometimes went unchecked. Subsequent code would then try to access\neither a null pointer or an error value.\n\nThe invalid dereferences were only possible with malformed userspace\napps which never properly initialized the rendering contexts.\n\nCheck the results of vmw_context_cotable to fix the invalid derefs.\n\nThanks:\nziming zhang(@ezrak1e) from Ant Group Light-Year Security Lab\nwho was the first person to discover it.\nNiels De Graef who reported it and helped to track down the poc."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c"
               ],
               "versions": [
                  {
                     "version": "9c079b8ce8bf",
                     "lessThan": "c560327d900b",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "9c079b8ce8bf",
                     "lessThan": "899e154f9546",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "9c079b8ce8bf",
                     "lessThan": "07c3fe923ff7",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "9c079b8ce8bf",
                     "lessThan": "ff41e0d4f3fa",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "9c079b8ce8bf",
                     "lessThan": "9cb3755b1e36",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "9c079b8ce8bf",
                     "lessThan": "585fec7361e7",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "9c079b8ce8bf",
                     "lessThan": "517621b70600",
                     "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/vmwgfx/vmwgfx_execbuf.c"
               ],
               "versions": [
                  {
                     "version": "4.20",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "4.20",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.10.215",
                     "lessThanOrEqual": "5.10.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.15.154",
                     "lessThanOrEqual": "5.15.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.1.84",
                     "lessThanOrEqual": "6.1.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.6.24",
                     "lessThanOrEqual": "6.6.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.7.12",
                     "lessThanOrEqual": "6.7.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.8.3",
                     "lessThanOrEqual": "6.8.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.9",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/c560327d900bab968c2e1b4cd7fa2d46cd429e3d"
            },
            {
               "url": "https://git.kernel.org/stable/c/899e154f9546fcae18065d74064889d08fff62c2"
            },
            {
               "url": "https://git.kernel.org/stable/c/07c3fe923ff7eccf684fb4f8c953d0a7cc8ded73"
            },
            {
               "url": "https://git.kernel.org/stable/c/ff41e0d4f3fa10d7cdd7d40f8026bea9fcc8b000"
            },
            {
               "url": "https://git.kernel.org/stable/c/9cb3755b1e3680b720b74dbedfac889e904605c7"
            },
            {
               "url": "https://git.kernel.org/stable/c/585fec7361e7850bead21fada49a7fcde2f2e791"
            },
            {
               "url": "https://git.kernel.org/stable/c/517621b7060096e48e42f545fa6646fc00252eac"
            }
         ],
         "title": "drm/vmwgfx: Fix possible null pointer derefence with invalid contexts",
         "x_generator": {
            "engine": "bippy-a5840b7849dd"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2024-26979",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}