Vulnerability 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_unregister and rcar_thermal_remove() handles the cleanup properly.
References
- https://git.kernel.org/stable/c/35bf61798e7d4abf39667d98f298f793b3dd9bbe
- https://git.kernel.org/stable/c/623349a18d4c6e6add7876553c0cb6947c8d92e6
- https://git.kernel.org/stable/c/810875c5996f731961fc5ee1bd24e711f2e8fe78
- https://git.kernel.org/stable/c/a85bcd0c7ef66e3404b3c99e5589c5ea622a757e
- https://git.kernel.org/stable/c/d67607e7749527850619a10d3ed033b02dcea516
- https://git.kernel.org/stable/c/dd04ad1cdabcad51e34b74b4e91b9aeb7180d05d
FAQ
What is CVE-2026-93142?
CVE-2026-93142 is a documented vulnerability. 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 whet...
How severe is CVE-2026-93142?
CVSS scoring is not yet available for CVE-2026-93142. Check NVD for updates.
Is there a patch for CVE-2026-93142?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.