CVE-2026-53205 (GCVE-0-2026-53205)
Vulnerability from cvelistv5
Published
2026-06-25 08:39
Modified
2026-08-05 12:34
Severity ?
7.1 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: accel/ivpu: Add bounds checks for firmware log indices Add validation that read and write indices in the firmware log buffer are within valid bounds (< data_size) before using them. If out-of-bounds indices are encountered (from firmware), clamp them to safe values instead of proceeding with invalid offsets. This prevents potential out-of-bounds buffer access when firmware supplies invalid log indices.
References
Impacted products
Vendor Product Version
Linux Linux Version: 0923a7d55a85179744926b7c11768a81679cc4d4
Version: 1fc1251149a76d3b75d7f4c94d9c4e081b7df6b4
Version: 1fc1251149a76d3b75d7f4c94d9c4e081b7df6b4
Version: 1fc1251149a76d3b75d7f4c94d9c4e081b7df6b4
Version: 6.12.30   ≤
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/accel/ivpu/ivpu_fw_log.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "5961c703414048f46818be8bbb11075a9a63fb4e",
              "status": "affected",
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              "versionType": "git"
            },
            {
              "lessThan": "8ec70c0dbdf04392a26e03e38798a373934177be",
              "status": "affected",
              "version": "1fc1251149a76d3b75d7f4c94d9c4e081b7df6b4",
              "versionType": "git"
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            {
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              "status": "affected",
              "version": "1fc1251149a76d3b75d7f4c94d9c4e081b7df6b4",
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            },
            {
              "lessThan": "dd1311bcf0e62f0c515115f46a3813370f4a4bb1",
              "status": "affected",
              "version": "1fc1251149a76d3b75d7f4c94d9c4e081b7df6b4",
              "versionType": "git"
            },
            {
              "lessThan": "6.12.94",
              "status": "affected",
              "version": "6.12.30",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/accel/ivpu/ivpu_fw_log.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.13"
            },
            {
              "lessThan": "6.13",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.94",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.36",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.13",
              "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": "6.12.94",
                  "versionStartIncluding": "6.12.30",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.36",
                  "versionStartIncluding": "6.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0.13",
                  "versionStartIncluding": "6.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1",
                  "versionStartIncluding": "6.13",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\naccel/ivpu: Add bounds checks for firmware log indices\n\nAdd validation that read and write indices in the firmware log buffer\nare within valid bounds (\u003c data_size) before using them. If\nout-of-bounds indices are encountered (from firmware), clamp them to\nsafe values instead of proceeding with invalid offsets.\n\nThis prevents potential out-of-bounds buffer access when firmware\nsupplies invalid log indices."
        }
      ],
      "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 code is reached through local kernel interfaces for the Intel NPU/ivpu device, including debugfs log reads and recovery/coredump paths after local job submission. There is no network or adjacent-radio entry point.\nAC:L - No race or difficult timing is required once invalid firmware log indices are present; the log read/recovery path directly consumes them. A local attacker can repeatedly exercise the NPU and trigger log printing or recovery.\nPR:L - The relevant DRM accel ioctls do not require capabilities, and the debugfs fw_log file is created as readable when debugfs is accessible. This is reachable by a local low-privileged user with access to the NPU device/debug interface, not by an unauthenticated remote attacker.\nUI:N - Exploitation does not require a separate victim action. The attacker can invoke the local device/debugfs path directly.\nS:U - The impact is within the local kernel/device driver security authority. It does not cross a VM, IOMMU, or other separate security scope boundary.\nC:H - Unbounded firmware-controlled indices can make the driver read far beyond the firmware log BO and print kernel memory through the log/coredump output path. This is an out-of-bounds read that can disclose high-value kernel memory.\nI:N - The vulnerable path reads bytes and prints them; it does not write out of bounds or provide an evident memory modification primitive. The fix only clamps read offsets.\nA:H - Out-of-bounds reads from a vmapped buffer can fault while walking unmapped memory or consume excessive resources while printing. This can cause a kernel oops/panic or serious denial of service."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T12:34:08.243Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/5961c703414048f46818be8bbb11075a9a63fb4e"
        },
        {
          "url": "https://git.kernel.org/stable/c/8ec70c0dbdf04392a26e03e38798a373934177be"
        },
        {
          "url": "https://git.kernel.org/stable/c/535da9ad8420c3b686a642403d4147ff220255fd"
        },
        {
          "url": "https://git.kernel.org/stable/c/dd1311bcf0e62f0c515115f46a3813370f4a4bb1"
        }
      ],
      "title": "accel/ivpu: Add bounds checks for firmware log indices",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-53205",
    "datePublished": "2026-06-25T08:39:12.268Z",
    "dateReserved": "2026-06-09T07:44:35.391Z",
    "dateUpdated": "2026-08-05T12:34:08.243Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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