What’s Vulnerable › Vulnerabilities

CVE-2026-43104: drm/vc4: Fix a memory leak in hang state error path

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-05-06 · updated 2026-06-17
• Weakness: CWE-401

Description

In the Linux kernel, the following vulnerability has been resolved: drm/vc4: Fix a memory leak in hang state error path When vc4_save_hang_state() encounters an early return condition, it returns without freeing the previously allocated `kernel_state`, leaking memory. Add the missing kfree() calls by consolidating the early return paths into a single place.

Affected products

• Linux kernel: from 4.5 before 6.6.136; from 6.7 before 6.12.83; from 6.13 before 6.18.24; from 6.19 before 6.19.14; 7.0-rc1, 7.0-rc2, 7.0-rc3, 7.0-rc4, 7.0-rc5, 7.0-rc6 (+1) — fixed in 6.12.83, 6.18.24, 6.19.14, 6.6.136

How to fix

Upgrade to a fixed version: Linux kernel 6.12.83, 6.18.24, 6.19.14, 6.6.136. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/259e2bba3fd7005c62cbd42365a48b3221b244e3
• https://git.kernel.org/stable/c/3eb7dd55021d0f4308fbea0bea21d2118984d8e7
• https://git.kernel.org/stable/c/9487daa18e627ac6b5ed5911be79f23362554b70
• https://git.kernel.org/stable/c/9525d169e5fd481538cf8c663cc5839e54f2e481
• https://git.kernel.org/stable/c/c197def3834cbee3fd824ce4c57d08cb24e18955
• https://git.kernel.org/stable/c/d8fdd6adc07b78ad3e9ee0004876d90cb59ca941
• https://git.kernel.org/stable/c/dd5c49787a32da96a2b154427eb17cbf12a83c28
• https://git.kernel.org/stable/c/e352e9adc9f6df54d63150ff832f71c04e30744b

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