CVE-2026-93142

/// Technical description

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

thermal/drivers/rcar: Fix error checking in probe()

This code accidentally calls thermal_zone_device_enable() before checking

whether thermal_zone_device_register_with_trips() failed. Move the call

until later to avoid an error pointer dereference of "priv->zone".

The driver works differently depending on if we are using OF thermal or

not. We use thermal_add_hwmon_sysfs() if we are using OF thermal and

call thermal_zone_device_enable() if not. We can share same error check

for if either of these fail.

Moving the thermal_zone_device_enable() call is a bit cleaner as well.

The original code used a three step process to cleanup:

1. Call thermal_zone_device_unregister() to cleanup.

2. Set priv->zone to an error pointer to preserve the error code.

3. Set priv->zone to NULL to avoid a second call to

thermal_zone_device_unregister() in the rcar_thermal_remove()

function.

Now we can just do a direct goto error_un

/// 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