CVE-2026-53169

MediumCVSS 5.5/10Last modified Jul 6, 2026

Description

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.

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-617

Affected software

VendorProductVersions
LinuxLinux>= 5a5e9c0228e613f0ef2a58b9782d7c0ea8f1e58b, < 70090a32f56a4589e7e860e0f9a8fbe4417df0a1; >= 5a5e9c0228e613f0ef2a58b9782d7c0ea8f1e58b, < ef911805d86a05363d3ec2fa9835a41def83bb7e
LinuxLinux6.19

References

Timeline

Published
Jun 25, 2026
Last modified
Jul 6, 2026
NVD status
Analyzed

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CVE-2026-53169: Medium severity, CVSS 5.5 | Vulnix