In the Linux kernel, the following vulnerability has been resolved:
thermal: core: Fix NULL pointer dereference in zone registration error path
If device_register() in thermal_zone_device_register_with_trips() returns an error, the tz variable is set to NULL and subsequently dereferenced in kfree(tz->tzp).
Commit adc8749b150c ("thermal/drivers/core: Use put_device() if device_register() fails") added the tz = NULL assignment in question to avoid a possible double-free after dropping the reference to the zone device. However, after commit 4649620d9404 ("thermal: core: Make thermal_zone_device_unregister() return after freeing the zone"), that assignment has become redundant, because dropping the reference to the zone device does not cause the zone object to be freed any more.
Drop it to address the NULL pointer dereference.
CVSS Details
- CVSS 3.1 Base Score: 5.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Jul 27, 2026 | Jul 27, 2026 |
| Redhat_linux | — | Upgrade kernelNo solution existsUpgrade kernel-rt | Dec 5, 2024 | Feb 26, 2024 |
| Ubuntu | — | Upgrade linux-image-oem-22.04dUpgrade linux-image-nvidia-64k-6.5Upgrade linux-image-oem-22.04bUpgrade linux-image-virtualUpgrade linux-image-6.5.0-1022-gcpUpgrade linux-image-6.5.0-1021-nvidiaUpgrade linux-image-6.5.0-41-generic-64kUpgrade linux-image-gcpUpgrade linux-image-6.5.0-1021-awsUpgrade linux-image-6.5.0-1022-azureUpgrade linux-image-kvmUpgrade linux-image-awsUpgrade linux-image-oracle-64kUpgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-6.5.0-1024-oemUpgrade linux-image-6.5.0-1018-raspiUpgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-laptop-23.10Upgrade linux-image-generic-hwe-22.04Upgrade linux-image-oracleUpgrade linux-image-raspi-nolpaeUpgrade linux-image-lowlatency-64kUpgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-6.5.0-1024-oracle-64kUpgrade linux-image-6.5.0-1022-azure-fdeUpgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-nvidia-6.5Upgrade linux-image-genericUpgrade linux-image-virtual-hwe-22.04Upgrade linux-image-oem-22.04cUpgrade linux-image-6.5.0-1015-starfiveUpgrade linux-image-6.5.0-1024-oracleUpgrade linux-image-azureUpgrade linux-image-6.5.0-1017-laptopUpgrade linux-image-6.5.0-41-lowlatencyUpgrade linux-image-oem-22.04Upgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-generic-64kUpgrade linux-image-starfiveUpgrade linux-image-oem-22.04aUpgrade linux-image-generic-lpaeUpgrade linux-image-6.5.0-41-genericUpgrade linux-image-6.5.0-41-lowlatency-64kUpgrade linux-image-lowlatencyUpgrade linux-image-6.5.0-1021-nvidia-64kUpgrade linux-image-azure-fdeUpgrade linux-image-raspi | May 17, 2024 | Feb 26, 2024 |
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