What’s Vulnerable › Vulnerabilities

CVE-2024-36956: thermal/debugfs: Free all thermal zone debug memory on zone removal

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-05-30 · updated 2026-06-17

Description

In the Linux kernel, the following vulnerability has been resolved: thermal/debugfs: Free all thermal zone debug memory on zone removal Because thermal_debug_tz_remove() does not free all memory allocated for thermal zone diagnostics, some of that memory becomes unreachable after freeing the thermal zone's struct thermal_debugfs object. Address this by making thermal_debug_tz_remove() free all of the memory in question. Cc :6.8+ <stable@vger.kernel.org> # 6.8+

Affected products

• Linux kernel: from 6.8 before 6.8.10; 6.9-rc1, 6.9-rc2, 6.9-rc3, 6.9-rc4, 6.9-rc5, 6.9-rc6 — fixed in 6.8.10

How to fix

Upgrade to a fixed version: Linux kernel 6.8.10. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/72c1afffa4c645fe0e0f1c03e5f34395ed65b5f4
• https://git.kernel.org/stable/c/f51564e4b3992b53df79460ed5781a5330b5b1d5
• https://git.kernel.org/stable/c/72c1afffa4c645fe0e0f1c03e5f34395ed65b5f4
• https://git.kernel.org/stable/c/f51564e4b3992b53df79460ed5781a5330b5b1d5

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