{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2026-53375",
  "modified": "2026-10-09T11:39:44Z",
  "upstream": [
    "CVE-2026-53375"
  ],
  "published": "2026-07-19T10:00:50Z",
  "summary": "drm/amdgpu/vce: Prevent partial address patches",
  "details": "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.",
  "severity": [
    {
      "type": "CVSS_V3",
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"
    }
  ],
  "affected": [
    {
      "package": {
        "ecosystem": "Raspberry Pi OS:12",
        "name": "linux"
      },
      "versions": [
        "1:6.1.47-1+rpt4"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-2712",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v6",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7l",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v8",
            "binary_version": "1:6.1.47-1+rpt4"
          }
        ]
      },
      "database_specific": {
        "per_version": {
          "1:6.1.47-1+rpt4": {
            "linux_commit": "655fc658a15ae7a6f37103754adb39ba52a9a14e",
            "upstream_version": "6.1.47",
            "assessment": "commit ancestry (strak rule)",
            "upstream_fixed": "6.1.175",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-53375"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/2d66d1f5d8c0434e9a5ad21cc6eaf3a5e32141d5"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/944db9cfa5373f67eb94621d4c2eee572c05fa3f"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/0ee17150763962671f43a62ddf8f6ea1feaff438"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/b3d1a0a45c4aec484fa2a5b060b611e3d3064470"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/ea2c554e700b86a04534b4c24ece5844e8c5f07e"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/de2a02cc28d6d5d37db07d00a9a684c754a5fd74"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-08-05T13:16:28Z",
    "severity": {
      "source": "kernel CNA",
      "cvss_v3_score": 8.8,
      "cvss_v3_severity": "High",
      "scenario": "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."
    }
  }
}