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

Type: advisorySource: Official CVE List1 source record

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.

Announced Source revision 1
Original source ↗

CVE-2026-93142

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-93142

Linux

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Linux

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "bbcf90c0646ac797700269fa6645a6a46466c79f",
        "lessThan": "a85bcd0c7ef66e3404b3c99e5589c5ea622a757e",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "bbcf90c0646ac797700269fa6645a6a46466c79f",
        "lessThan": "810875c5996f731961fc5ee1bd24e711f2e8fe78",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "bbcf90c0646ac797700269fa6645a6a46466c79f",
        "lessThan": "623349a18d4c6e6add7876553c0cb6947c8d92e6",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "bbcf90c0646ac797700269fa6645a6a46466c79f",
        "lessThan": "35bf61798e7d4abf39667d98f298f793b3dd9bbe",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "bbcf90c0646ac797700269fa6645a6a46466c79f",
        "lessThan": "d67607e7749527850619a10d3ed033b02dcea516",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "bbcf90c0646ac797700269fa6645a6a46466c79f",
        "lessThan": "dd04ad1cdabcad51e34b74b4e91b9aeb7180d05d",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "drivers/thermal/renesas/rcar_thermal.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "5.9"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "5.9",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "6.1.188",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.157",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.110",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.52",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "7.2.6",
        "versionType": "semver",
        "lessThanOrEqual": "7.2.*"
      },
      {
        "status": "unaffected",
        "version": "7.3",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/thermal/renesas/rcar_thermal.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-93142

Source reference: /cveMetadata/cveId

Publisher severity

No explicit severity was provided.

Event
#37863 · Revision 1
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Publisher date
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