thermal/drivers/rcar: Fix error checking in probe()
Summary
| CVE | CVE-2026-93142 |
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| State | PUBLISHED |
|---|
| Assigner | Linux |
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| Source Priority | CVE Program / NVD first with legacy fallback |
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| Published | 2026-09-17 17:18:09 UTC |
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| Updated | 2026-09-17 17:18:09 UTC |
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| 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. |
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Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|
| CNA |
Linux |
Linux |
affected bbcf90c0646ac797700269fa6645a6a46466c79f a85bcd0c7ef66e3404b3c99e5589c5ea622a757e git |
Not specified |
| CNA |
Linux |
Linux |
affected bbcf90c0646ac797700269fa6645a6a46466c79f 810875c5996f731961fc5ee1bd24e711f2e8fe78 git |
Not specified |
| CNA |
Linux |
Linux |
affected bbcf90c0646ac797700269fa6645a6a46466c79f 623349a18d4c6e6add7876553c0cb6947c8d92e6 git |
Not specified |
| CNA |
Linux |
Linux |
affected bbcf90c0646ac797700269fa6645a6a46466c79f 35bf61798e7d4abf39667d98f298f793b3dd9bbe git |
Not specified |
| CNA |
Linux |
Linux |
affected bbcf90c0646ac797700269fa6645a6a46466c79f d67607e7749527850619a10d3ed033b02dcea516 git |
Not specified |
| CNA |
Linux |
Linux |
affected bbcf90c0646ac797700269fa6645a6a46466c79f dd04ad1cdabcad51e34b74b4e91b9aeb7180d05d git |
Not specified |
| CNA |
Linux |
Linux |
affected 5.9 |
Not specified |
| CNA |
Linux |
Linux |
unaffected 5.9 semver |
Not specified |
| CNA |
Linux |
Linux |
unaffected 6.1.188 6.1.* semver |
Not specified |
| CNA |
Linux |
Linux |
unaffected 6.6.157 6.6.* semver |
Not specified |
| CNA |
Linux |
Linux |
unaffected 6.12.110 6.12.* semver |
Not specified |
| CNA |
Linux |
Linux |
unaffected 6.18.52 6.18.* semver |
Not specified |
| CNA |
Linux |
Linux |
unaffected 7.2.6 7.2.* semver |
Not specified |
| CNA |
Linux |
Linux |
unaffected 7.3-rc1 * original_commit_for_fix |
Not specified |
References
| Reference | Source | Link | Tags |
|---|
| git.kernel.org/stable/c/35bf61798e7d4abf39667d98f298f793b3dd9bbe |
416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
git.kernel.org |
|
| git.kernel.org/stable/c/a85bcd0c7ef66e3404b3c99e5589c5ea622a757e |
416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
git.kernel.org |
|
| git.kernel.org/stable/c/dd04ad1cdabcad51e34b74b4e91b9aeb7180d05d |
416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
git.kernel.org |
|
| git.kernel.org/stable/c/810875c5996f731961fc5ee1bd24e711f2e8fe78 |
416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
git.kernel.org |
|
| git.kernel.org/stable/c/623349a18d4c6e6add7876553c0cb6947c8d92e6 |
416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
git.kernel.org |
|
| git.kernel.org/stable/c/d67607e7749527850619a10d3ed033b02dcea516 |
416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
git.kernel.org |
|
| CVE Program record |
CVE.ORG |
www.cve.org |
canonical |
| NVD vulnerability detail |
NVD |
nvd.nist.gov |
canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.