CVE-2026-43287 (GCVE-0-2026-43287)
Vulnerability from cvelistv5
Published
2026-05-08 13:11
Modified
2026-05-11 22:21
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: drm: Account property blob allocations to memcg DRM_IOCTL_MODE_CREATEPROPBLOB allows userspace to allocate arbitrary-sized property blobs backed by kernel memory. Currently, the blob data allocation is not accounted to the allocating process's memory cgroup, allowing unprivileged users to trigger unbounded kernel memory consumption and potentially cause system-wide OOM. Mark the property blob data allocation with GFP_KERNEL_ACCOUNT so that the memory is properly charged to the caller's memcg. This ensures existing cgroup memory limits apply and prevents uncontrolled kernel memory growth without introducing additional policy or per-file limits.
References
Impacted products
Vendor Product Version
Linux Linux Version: e2f5d2ea479b9b2619965d43db70939589afe43a
Version: e2f5d2ea479b9b2619965d43db70939589afe43a
Version: e2f5d2ea479b9b2619965d43db70939589afe43a
Version: e2f5d2ea479b9b2619965d43db70939589afe43a
Version: e2f5d2ea479b9b2619965d43db70939589afe43a
Version: e2f5d2ea479b9b2619965d43db70939589afe43a
Version: e2f5d2ea479b9b2619965d43db70939589afe43a
Version: e2f5d2ea479b9b2619965d43db70939589afe43a
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{
  "containers": {
    "cna": {
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        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/drm_property.c"
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              "version": "0",
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              "version": "7.0",
              "versionType": "original_commit_for_fix"
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      ],
      "cpeApplicability": [
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              "cpeMatch": [
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              "negate": false,
              "operator": "OR"
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        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm: Account property blob allocations to memcg\n\nDRM_IOCTL_MODE_CREATEPROPBLOB allows userspace to allocate arbitrary-sized\nproperty blobs backed by kernel memory.\n\nCurrently, the blob data allocation is not accounted to the allocating\nprocess\u0027s memory cgroup, allowing unprivileged users to trigger unbounded\nkernel memory consumption and potentially cause system-wide OOM.\n\nMark the property blob data allocation with GFP_KERNEL_ACCOUNT so that the memory\nis properly charged to the caller\u0027s memcg. This ensures existing cgroup\nmemory limits apply and prevents uncontrolled kernel memory growth without\nintroducing additional policy or per-file limits."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T22:21:38.413Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/b6117210ed349356f8e6027ff020b4d620bca42b"
        },
        {
          "url": "https://git.kernel.org/stable/c/815fa29cab3c67bebb9d0b5f41145cdd3a14d04d"
        },
        {
          "url": "https://git.kernel.org/stable/c/866e0c1a9e7244d58ed74853cb22b81e1900cfdd"
        },
        {
          "url": "https://git.kernel.org/stable/c/bbfaa5761f589a81031b493cb01275a990d6fb25"
        },
        {
          "url": "https://git.kernel.org/stable/c/8e1664b9ee43608eb973d357ae5d858d30cbc9ca"
        },
        {
          "url": "https://git.kernel.org/stable/c/cb8b9a1755fe9f38e4fb7f287486d7e7fab3dba4"
        },
        {
          "url": "https://git.kernel.org/stable/c/405fd652d8fedff219a8f48daf8f20e881e303ab"
        },
        {
          "url": "https://git.kernel.org/stable/c/26b4309a3ab82a0697751cde52eb336c29c19035"
        }
      ],
      "title": "drm: Account property blob allocations to memcg",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-43287",
    "datePublished": "2026-05-08T13:11:12.541Z",
    "dateReserved": "2026-05-01T14:12:55.999Z",
    "dateUpdated": "2026-05-11T22:21:38.413Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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