FKIE_CVE-2026-53169

Vulnerability from fkie_nvd - Published: 2026-06-25 09:16 - Updated: 2026-06-30 14:44
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: accel/ethosu: reject NPU_OP_RESIZE commands from userspace NPU_OP_RESIZE is a U85-only command that the driver does not yet implement. The existing WARN_ON(1) placeholder fires unconditionally whenever userspace submits this command via DRM_IOCTL_ETHOSU_GEM_CREATE, causing unbounded kernel log spam. If panic_on_warn is set the kernel panics, giving any unprivileged user with access to the DRM device a trivial denial-of-service primitive. Replace the WARN_ON(1) with an explicit -EINVAL return so the ioctl rejects the command before it reaches hardware.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/70090a32f56a4589e7e860e0f9a8fbe4417df0a1
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ef911805d86a05363d3ec2fa9835a41def83bb7e
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/accel/ethosu/ethosu_gem.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "70090a32f56a4589e7e860e0f9a8fbe4417df0a1",
              "status": "affected",
              "version": "5a5e9c0228e613f0ef2a58b9782d7c0ea8f1e58b",
              "versionType": "git"
            },
            {
              "lessThan": "ef911805d86a05363d3ec2fa9835a41def83bb7e",
              "status": "affected",
              "version": "5a5e9c0228e613f0ef2a58b9782d7c0ea8f1e58b",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/accel/ethosu/ethosu_gem.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.19"
            },
            {
              "lessThan": "6.19",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.13",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\naccel/ethosu: reject NPU_OP_RESIZE commands from userspace\n\nNPU_OP_RESIZE is a U85-only command that the driver does not yet\nimplement. The existing WARN_ON(1) placeholder fires unconditionally\nwhenever userspace submits this command via DRM_IOCTL_ETHOSU_GEM_CREATE,\ncausing unbounded kernel log spam.\n\nIf panic_on_warn is set the kernel panics, giving any unprivileged user\nwith access to the DRM device a trivial denial-of-service primitive.\n\nReplace the WARN_ON(1) with an explicit -EINVAL return so the ioctl\nrejects the command before it reaches hardware."
    }
  ],
  "id": "CVE-2026-53169",
  "lastModified": "2026-06-30T14:44:27.313",
  "metrics": {},
  "published": "2026-06-25T09:16:34.283",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/70090a32f56a4589e7e860e0f9a8fbe4417df0a1"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ef911805d86a05363d3ec2fa9835a41def83bb7e"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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