SB20260924128 - Use-after-free in Linux kernel thermal tegra driver

Description

This security bulletin contains information about 1 vulnerability.

1) Use-after-free (CVE-ID: CVE-2026-97475)

CWE-ID: CWE-416 - Use After Free

CVSSv4: 0 [CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N]

The vulnerability allows a local privileged user to trigger a use-after-free.

The vulnerability exists due to failure to unregister thermal cooling devices in the Tegra SoCTherm driver when the platform driver is removed. A local privileged user can cause the driver to be removed and trigger use of a stale thermal framework reference to trigger a use-after-free.

The stale cooling-device references retain devdata pointers to memory freed during platform-device cleanup.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/6f2a863e7e9adf6088fe644259576181e60ee5e5
• https://git.kernel.org/stable/c/deaeb7be8e6b04c8b71080acba1bd88698f56b1d
• https://git.kernel.org/stable/c/ee126267bc04bfb03816ae9d71ca24c5bf99e739