Linux Kernel up to 5.10.103/5.15.26/5.16.12 thermal get_trip_hyst null pointer dereference

Summaryinfo

A vulnerability has been found in Linux Kernel up to 5.10.103/5.15.26/5.16.12 and classified as critical. The affected element is the function get_trip_hyst of the component thermal. Performing a manipulation results in null pointer dereference. This vulnerability was named CVE-2022-48915. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Linux Kernel up to 5.10.103/5.15.26/5.16.12. It has been classified as critical. This affects the function get_trip_hyst of the component thermal. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. This is going to have an impact on availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: thermal: core: Fix TZ_GET_TRIP NULL pointer dereference Do not call get_trip_hyst() from thermal_genl_cmd_tz_get_trip() if the thermal zone does not define one.

It is possible to read the advisory at git.kernel.org. This vulnerability is uniquely identified as CVE-2022-48915 since 08/21/2024. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 5.10.104, 5.15.27 or 5.16.13 eliminates this vulnerability. Applying the patch 1c0b51e62a50/3dafbf915c05/4c294285cec3/5838a14832d4 is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Type

• Operating System

Vendor

• Linux

Name

• Kernel

Version

• 5.10.103
• 5.15.0
• 5.15.1
• 5.15.2
• 5.15.3
• 5.15.4
• 5.15.5
• 5.15.6
• 5.15.7
• 5.15.8
• 5.15.9
• 5.15.10
• 5.15.11
• 5.15.12
• 5.15.13
• 5.15.14
• 5.15.15
• 5.15.16
• 5.15.17
• 5.15.18
• 5.15.19
• 5.15.20
• 5.15.21
• 5.15.22
• 5.15.23
• 5.15.24
• 5.15.25
• 5.15.26
• 5.16.0
• 5.16.1
• 5.16.2
• 5.16.3
• 5.16.4
• 5.16.5
• 5.16.6
• 5.16.7
• 5.16.8
• 5.16.9
• 5.16.10
• 5.16.11
• 5.16.12

License

• open-source

Website

• Vendor: https://www.kernel.org/

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