CVE-2026-53375 (GCVE-0-2026-53375)
Vulnerability from cvelistv5
Published
2026-07-19 10:01
Modified
2026-08-05 12:35
Severity ?
8.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/vce: Prevent partial address patches In the case that only one of lo/hi is valid, the patching could result in a bad address written to in FW.
References
Impacted products
Vendor Product Version
Linux Linux Version: d38ceaf99ed015f2a0b9af3499791bd3a3daae21
Version: d38ceaf99ed015f2a0b9af3499791bd3a3daae21
Version: d38ceaf99ed015f2a0b9af3499791bd3a3daae21
Version: d38ceaf99ed015f2a0b9af3499791bd3a3daae21
Version: d38ceaf99ed015f2a0b9af3499791bd3a3daae21
Version: d38ceaf99ed015f2a0b9af3499791bd3a3daae21
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.2"
            },
            {
              "lessThan": "4.2",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.175",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.140",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.90",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.32",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.9",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.175",
                  "versionStartIncluding": "4.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.140",
                  "versionStartIncluding": "4.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "vulnerable": true
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                {
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                  "versionEndExcluding": "7.1",
                  "versionStartIncluding": "4.2",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu/vce: Prevent partial address patches\n\nIn the case that only one of lo/hi is valid, the patching could result\nin a bad address written to in FW."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The vulnerable code is reached only through the AMDGPU_CS DRM ioctl on a render node (/dev/dri/renderD*), requiring local access to submit crafted VCE indirect buffers to the GPU driver.\nAC:L - An attacker fully controls the VCE command stream and per-command length fields, and can reliably craft commands where exactly one relocation index is out of bounds (e.g., 0x0500000d with len=32) to trigger partial address patching.\nPR:L - Exploitation requires only unprivileged local access to the amdgpu DRM render node; AMDGPU_CS is gated by DRM_AUTH|DRM_RENDER_ALLOW, not root or special capabilities.\nUI:N - No victim interaction is required; the attacker drives the entire malicious command submission through the render node.\nS:C - Partial address patching causes VCE firmware to DMA using attacker-influenced GPU addresses outside the intended buffer object boundaries, crossing the GPU memory/DMA isolation boundary that the relocation logic is meant to enforce.\nC:H - VCE firmware performs DMA reads using the malformed 64-bit address, enabling arbitrary reads from GPU-accessible memory regions (including GTT-mapped system memory) beyond the validated buffer scope.\nI:H - VCE firmware performs DMA writes (encoded bitstreams, feedback, and context buffers) to attacker-influenced addresses, enabling arbitrary GPU-mapped memory corruption and potential privilege escalation primitives.\nA:H - Submitting commands with malformed firmware addresses can cause GPU page faults, driver hangs, GPU resets, or kernel oops/panic when the VCE engine accesses invalid memory regions."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T12:35:19.662Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/2d66d1f5d8c0434e9a5ad21cc6eaf3a5e32141d5"
        },
        {
          "url": "https://git.kernel.org/stable/c/944db9cfa5373f67eb94621d4c2eee572c05fa3f"
        },
        {
          "url": "https://git.kernel.org/stable/c/0ee17150763962671f43a62ddf8f6ea1feaff438"
        },
        {
          "url": "https://git.kernel.org/stable/c/b3d1a0a45c4aec484fa2a5b060b611e3d3064470"
        },
        {
          "url": "https://git.kernel.org/stable/c/ea2c554e700b86a04534b4c24ece5844e8c5f07e"
        },
        {
          "url": "https://git.kernel.org/stable/c/de2a02cc28d6d5d37db07d00a9a684c754a5fd74"
        }
      ],
      "title": "drm/amdgpu/vce: Prevent partial address patches",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-53375",
    "datePublished": "2026-07-19T10:01:58.898Z",
    "dateReserved": "2026-06-09T07:44:35.401Z",
    "dateUpdated": "2026-08-05T12:35:19.662Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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