thermal/drivers/rcar: Fix error checking in probe()
Key facts
- Attack vector
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- Privileges required
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- User interaction
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- Attack complexity
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- Impact type
- —
- Confidentiality · integrity · availability
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- Fix status
- Fixed
No CVSS vector from any source. Fix status from CNA.
Summary
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.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
- Fix · CNA Linux (Linux) Fixed in 6.1.188, 6.6.157, 6.12.110, 6.18.52, 7.2.6, 7.3
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
Not affected: 7 products
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Red Hat OpenShift Container Platform 4
- Red Hat OpenShift Container Platform 5
Timeline
- 2026-10-02 Threatist record created from CVE-2026-93142
- 2026-10-03 Alias added: GHSA-hm78-cgjx-c8pf
- 2026-10-19 Fix available: Linux/[email protected] · CNA
- 2026-10-21 Affected versions changed · Red Hat
- 2026-10-21 CVSS score added · Red Hat
- 2026-11-06 Affected versions changed · Red Hat
References
Other 6
- https://git.kernel.org/stable/c/a85bcd0c7ef66e3404b3c99e5589c5ea622a757e
- https://git.kernel.org/stable/c/810875c5996f731961fc5ee1bd24e711f2e8fe78
- https://git.kernel.org/stable/c/623349a18d4c6e6add7876553c0cb6947c8d92e6
- https://git.kernel.org/stable/c/35bf61798e7d4abf39667d98f298f793b3dd9bbe
- https://git.kernel.org/stable/c/d67607e7749527850619a10d3ed033b02dcea516
- https://git.kernel.org/stable/c/dd04ad1cdabcad51e34b74b4e91b9aeb7180d05d
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Sources
- CVE-2026-93142 · CVE Program
- CVE-2026-93142 · NVD
- FIRST EPSS
- GHSA-hm78-cgjx-c8pf · GitHub Advisory Database · CC BY 4.0
- CVE-2026-93142 · Red Hat security data · CC BY 4.0
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