{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2026-46230",
  "modified": "2026-10-09T11:39:44Z",
  "upstream": [
    "CVE-2026-46230"
  ],
  "published": "2026-05-28T09:40:54Z",
  "summary": "drm/amdgpu/vcn3: Prevent OOB reads when parsing dec msg",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu/vcn3: Prevent OOB reads when parsing dec msg\n\nCheck bounds against the end of the BO whenever we access the msg.",
  "severity": [
    {
      "type": "CVSS_V3",
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/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-2026-46230"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/f55552adb100eb54a6e6dabff4fbdc8679bd3fa0"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/82c535eff05490c71153af57de9fe85502fcb5d5"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/638d3e0b9eb77aa53fdd60e2b928761d16ba76fa"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/870c8738c3774336baedddd0240951d078a703b8"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/638e48ee39d0f2af9336f917a6f5d6692dd64d93"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/e382e0b81a3e7bd21504fee1d01ae8b08f84d3a7"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/b193019860d61e92da395eae2011f2f6716b182f"
    }
  ],
  "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": 7.1,
      "cvss_v3_severity": "High",
      "scenario": "AV:L - Reached only via the local DRM_IOCTL_AMDGPU_CS ioctl on the GPU render node; the malicious message must be submitted by a local process holding a device fd, not over any network.\nAC:L - The attacker fully controls the message BO it allocates and references (length, num_buffers, offset/size), so it can deterministically set out-of-range values to trigger the OOB read with no race or uncontrolled condition.\nPR:L - The CS ioctl is DRM_RENDER_ALLOW, reachable by any unprivileged local user/sandboxed client with access to a render node; no root or special capability is required.\nUI:N - The attacker submits the crafted command stream directly; no victim action is needed.\nS:U - The out-of-bounds access stays within the kernel's own memory and security authority; no VM/IOMMU/sandbox boundary is crossed.\nC:H - Attacker-controlled num_buffers and offset drive an unbounded out-of-bounds read of kernel memory well beyond a few bytes, which per guidance is treated as High confidentiality impact.\nI:N - The flaw is purely an out-of-bounds read; no out-of-range data is ever written back, so there is no memory-modification or control-flow-corruption primitive.\nA:H - Iterating over an attacker-supplied huge num_buffers reads past the kmapped buffer into unmapped memory, causing a kernel page fault/oops (crash)."
    }
  }
}