CVE-2025-37754

/// Technical description

In the Linux kernel, the following vulnerability has been resolved:

drm/i915/huc: Fix fence not released on early probe errors

HuC delayed loading fence, introduced with commit 27536e03271da

("drm/i915/huc: track delayed HuC load with a fence"), is registered with

object tracker early on driver probe but unregistered only from driver

remove, which is not called on early probe errors. Since its memory is

allocated under devres, then released anyway, it may happen to be

allocated again to the fence and reused on future driver probes, resulting

in kernel warnings that taint the kernel:

<4> [309.731371] ------------[ cut here ]------------

<3> [309.731373] ODEBUG: init destroyed (active state 0) object: ffff88813d7dd2e0 object type: i915_sw_fence hint: sw_fence_dummy_notify+0x0/0x20 [i915]

<4> [309.731575] WARNING: CPU: 2 PID: 3161 at lib/debugobjects.c:612 debug_print_object+0x93/0xf0

...

<4> [309.731693] CPU: 2 UID: 0 PID: 3161 Comm: i915_module_loa Tainted: G U 6.14.

/// Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

/// References