EUVD-2026-39297
GHSA-365f-xm5m-p3pr
Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Local access and low privilege required to reach VPU device; impact is availability-only DoS via kernel error with no confidentiality or integrity effect.
Primary rating from NVD.
CVSS VectorNVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Lifecycle Timeline
5DescriptionNVD
In the Linux kernel, the following vulnerability has been resolved:
accel/ivpu: Add bounds check for firmware runtime memory
Validate that the firmware runtime memory specified in the image header is properly aligned and sized to hold the firmware image. This prevents errors during memory allocation and image transfer.
AnalysisAI
Missing bounds validation in the Linux kernel's accel/ivpu Intel VPU accelerator driver allows a local low-privileged user on an affected Intel VPU-equipped system to trigger kernel memory allocation errors or a denial of service by supplying a malformed firmware image header specifying improperly aligned or undersized runtime memory. Affected versions include Linux 6.19 and 7.1-rc1 through rc6; fixed commits are available for both the 7.0.x stable series and the 7.1 branch. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires: (1) a local account with low-privilege access (PR:L per CVSS); (2) the target system must be equipped with Intel VPU hardware (Meteor Lake or Lunar Lake SoC) - this hardware prerequisite alone excludes the majority of Linux deployments; (3) the intel_vpu (accel/ivpu) kernel module must be loaded and active; (4) the attacker must have permission to access the VPU device nodes (/dev/accel/*), which is typically restricted to users in the 'video' or 'render' group or those with explicit udev permissions. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 vector AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H yields a Medium score of 5.5, reflecting local-only, low-privilege access required with high availability impact and no confidentiality or integrity effect. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | A local user with a standard low-privilege account on an Intel Meteor Lake or Lunar Lake laptop running an affected kernel version could interact with the VPU device node and supply a crafted or modified firmware image whose header declares a runtime memory region that is misaligned or smaller than the firmware image itself. When the ivpu driver processes this header without the bounds check, it proceeds to allocate or transfer memory based on invalid parameters, triggering a kernel error or crash and causing a local denial of service. … |
| Remediation | The primary remediation is to upgrade to Linux kernel 7.0.13 or later for the stable 7.0.x series, or to Linux 7.1 once the final release is available incorporating commit 1d0b597facdd3c0239c88e8797c1014e1ea0ef15. … Detailed patch versions, workarounds, and compensating controls in full report. |
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External POC / Exploit Code
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