{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-43280",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-16T15:16:15.978847Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-125",
                "description": "CWE-125 Out-of-bounds Read",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-19T19:16:25.879Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/xe/xe_vm_madvise.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "ffba51100ff61792fefbae11ca38ac1987a818dd",
              "status": "affected",
              "version": "ada7486c5668db542a7d361268df931aca5b726a",
              "versionType": "git"
            },
            {
              "lessThan": "79f52655567a6471ff3d0d6325ede91bb14461f4",
              "status": "affected",
              "version": "ada7486c5668db542a7d361268df931aca5b726a",
              "versionType": "git"
            },
            {
              "lessThan": "fbbe32618e97eff81577a01eb7d9adcd64a216d7",
              "status": "affected",
              "version": "ada7486c5668db542a7d361268df931aca5b726a",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/xe/xe_vm_madvise.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.18"
            },
            {
              "lessThan": "6.18",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.16",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.16",
                  "versionStartIncluding": "6.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19.6",
                  "versionStartIncluding": "6.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0",
                  "versionStartIncluding": "6.18",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe: Add bounds check on pat_index to prevent OOB kernel read in madvise\n\nWhen user provides a bogus pat_index value through the madvise IOCTL, the\nxe_pat_index_get_coh_mode() function performs an array access without\nvalidating bounds. This allows a malicious user to trigger an out-of-bounds\nkernel read from the xe-\u003epat.table array.\n\nThe vulnerability exists because the validation in madvise_args_are_sane()\ndirectly calls xe_pat_index_get_coh_mode(xe, args-\u003epat_index.val) without\nfirst checking if pat_index is within [0, xe-\u003epat.n_entries).\n\nAlthough xe_pat_index_get_coh_mode() has a WARN_ON to catch this in debug\nbuilds, it still performs the unsafe array access in production kernels.\n\nv2(Matthew Auld)\n- Using array_index_nospec() to mitigate spectre attacks when the value\nis used\n\nv3(Matthew Auld)\n- Put the declarations at the start of the block\n\n(cherry picked from commit 944a3329b05510d55c69c2ef455136e2fc02de29)"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.1,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The vulnerable path is a local DRM xe ioctl, reached by opening an xe DRM render device and issuing DRM_IOCTL_XE_VM_CREATE followed by DRM_IOCTL_XE_MADVISE. It is not reachable from network, adjacent, or physical input.\nAC:L - Exploitation requires only attacker-controlled ioctl arguments with type DRM_XE_MEM_RANGE_ATTR_PAT and an out-of-range pat_index; no race or hard-to-control state is required. A valid VM id can be created by the same unprivileged caller.\nPR:L - The ioctl is registered with DRM_RENDER_ALLOW and no DRM_AUTH, DRM_MASTER, or DRM_ROOT_ONLY gate, so a normal local user with access to the render node can reach it. It does not require real root or capabilities.\nUI:N - No victim action is needed after the attacker has local execution and device-node access. The attacker directly opens the DRM node and submits the ioctl.\nS:U - The bug is in the host kernel DRM driver and impacts kernel resources under the same security authority. It is not a VM escape, IOMMU bypass, or other cross-scope boundary violation.\nC:H - The flaw is an attacker-controlled out-of-bounds kernel read from xe-\u003epat.table via xe_pat_index_get_coh_mode(), with a u16 index range and no bounds check before the fix. Following the higher-severity rule for OOB kernel reads, this is scored as high confidentiality impact.\nI:N - The immediate primitive is an out-of-bounds read and validation oracle; the investigated path does not provide a direct kernel write or memory corruption primitive. A bad PAT value may be stored only if the OOB read happens to pass validation, but that does not establish arbitrary modification of protected data.\nA:H - Out-of-range pat_index values trigger WARN_ON in xe_pat_index_get_coh_mode(), and in hardened or panic_on_warn deployments this can panic the kernel. The same local user can repeatedly trigger the condition, so high availability impact is the higher defensible choice."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T12:27:02.301Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/ffba51100ff61792fefbae11ca38ac1987a818dd"
        },
        {
          "url": "https://git.kernel.org/stable/c/79f52655567a6471ff3d0d6325ede91bb14461f4"
        },
        {
          "url": "https://git.kernel.org/stable/c/fbbe32618e97eff81577a01eb7d9adcd64a216d7"
        }
      ],
      "title": "drm/xe: Add bounds check on pat_index to prevent OOB kernel read in madvise",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-43280",
    "datePublished": "2026-05-06T11:29:01.562Z",
    "dateReserved": "2026-05-01T14:12:55.998Z",
    "dateUpdated": "2026-10-19T19:16:25.879Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-43280\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-10-16T15:16:15.978847Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-125\", \"description\": \"CWE-125 Out-of-bounds Read\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-10-16T15:16:16.539Z\"}}], \"cna\": {\"title\": \"drm/xe: Add bounds check on pat_index to prevent OOB kernel read in madvise\", \"metrics\": [{\"cvssV3_1\": {\"version\": \"3.1\", \"baseScore\": 7.1, \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"AV:L - The vulnerable path is a local DRM xe ioctl, reached by opening an xe DRM render device and issuing DRM_IOCTL_XE_VM_CREATE followed by DRM_IOCTL_XE_MADVISE. It is not reachable from network, adjacent, or physical input.\\nAC:L - Exploitation requires only attacker-controlled ioctl arguments with type DRM_XE_MEM_RANGE_ATTR_PAT and an out-of-range pat_index; no race or hard-to-control state is required. A valid VM id can be created by the same unprivileged caller.\\nPR:L - The ioctl is registered with DRM_RENDER_ALLOW and no DRM_AUTH, DRM_MASTER, or DRM_ROOT_ONLY gate, so a normal local user with access to the render node can reach it. It does not require real root or capabilities.\\nUI:N - No victim action is needed after the attacker has local execution and device-node access. The attacker directly opens the DRM node and submits the ioctl.\\nS:U - The bug is in the host kernel DRM driver and impacts kernel resources under the same security authority. It is not a VM escape, IOMMU bypass, or other cross-scope boundary violation.\\nC:H - The flaw is an attacker-controlled out-of-bounds kernel read from xe-\u003epat.table via xe_pat_index_get_coh_mode(), with a u16 index range and no bounds check before the fix. Following the higher-severity rule for OOB kernel reads, this is scored as high confidentiality impact.\\nI:N - The immediate primitive is an out-of-bounds read and validation oracle; the investigated path does not provide a direct kernel write or memory corruption primitive. A bad PAT value may be stored only if the OOB read happens to pass validation, but that does not establish arbitrary modification of protected data.\\nA:H - Out-of-range pat_index values trigger WARN_ON in xe_pat_index_get_coh_mode(), and in hardened or panic_on_warn deployments this can panic the kernel. The same local user can repeatedly trigger the condition, so high availability impact is the higher defensible choice.\"}]}], \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"ada7486c5668db542a7d361268df931aca5b726a\", \"lessThan\": \"ffba51100ff61792fefbae11ca38ac1987a818dd\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"ada7486c5668db542a7d361268df931aca5b726a\", \"lessThan\": \"79f52655567a6471ff3d0d6325ede91bb14461f4\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"ada7486c5668db542a7d361268df931aca5b726a\", \"lessThan\": \"fbbe32618e97eff81577a01eb7d9adcd64a216d7\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/gpu/drm/xe/xe_vm_madvise.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"6.18\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"6.18\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"6.18.16\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.18.*\"}, {\"status\": \"unaffected\", \"version\": \"6.19.6\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.19.*\"}, {\"status\": \"unaffected\", \"version\": \"7.0\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/gpu/drm/xe/xe_vm_madvise.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/ffba51100ff61792fefbae11ca38ac1987a818dd\"}, {\"url\": \"https://git.kernel.org/stable/c/79f52655567a6471ff3d0d6325ede91bb14461f4\"}, {\"url\": \"https://git.kernel.org/stable/c/fbbe32618e97eff81577a01eb7d9adcd64a216d7\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\ndrm/xe: Add bounds check on pat_index to prevent OOB kernel read in madvise\\n\\nWhen user provides a bogus pat_index value through the madvise IOCTL, the\\nxe_pat_index_get_coh_mode() function performs an array access without\\nvalidating bounds. This allows a malicious user to trigger an out-of-bounds\\nkernel read from the xe-\u003epat.table array.\\n\\nThe vulnerability exists because the validation in madvise_args_are_sane()\\ndirectly calls xe_pat_index_get_coh_mode(xe, args-\u003epat_index.val) without\\nfirst checking if pat_index is within [0, xe-\u003epat.n_entries).\\n\\nAlthough xe_pat_index_get_coh_mode() has a WARN_ON to catch this in debug\\nbuilds, it still performs the unsafe array access in production kernels.\\n\\nv2(Matthew Auld)\\n- Using array_index_nospec() to mitigate spectre attacks when the value\\nis used\\n\\nv3(Matthew Auld)\\n- Put the declarations at the start of the block\\n\\n(cherry picked from commit 944a3329b05510d55c69c2ef455136e2fc02de29)\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.18.16\", \"versionStartIncluding\": \"6.18\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.19.6\", \"versionStartIncluding\": \"6.18\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"7.0\", \"versionStartIncluding\": \"6.18\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-08-05T12:27:02.301Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-43280\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-10-19T19:16:25.879Z\", \"dateReserved\": \"2026-05-01T14:12:55.998Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2026-05-06T11:29:01.562Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}