What’s Vulnerable › Vulnerabilities

CVE-2026-98970: drm/vc4: Free the BO cache size list on teardown

• Severity: unknown
• 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: 2026-10-23 · updated 2026-10-30

Description

In the Linux kernel, the following vulnerability has been resolved: drm/vc4: Free the BO cache size list on teardown vc4_bo_cache_destroy() purges the cached BOs but never frees the size list, leaking it on every unbind.

Affected products

• Linux: 4.5 — fixed in 7.3

How to fix

Upgrade to a fixed version: Linux 7.3. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/035ad1bc964f6698e9b06c26ffe94bcac08dadea
• https://git.kernel.org/stable/c/27c17ca90202d2a20def0316fb9403971ac9dfa7
• https://git.kernel.org/stable/c/2f19ddd4bf56a057dbf17e434a3c9ea45adaf7e8
• https://git.kernel.org/stable/c/40870a0290cd913c9d94f98ed87ebe00dd091e53
• https://git.kernel.org/stable/c/75f89ab8cb4c9f136af790cc5df1f88d2726953a
• https://git.kernel.org/stable/c/b41ff8b529278216cba22a5dcdc93fea2a3a9619
• https://git.kernel.org/stable/c/bea10b84e22efa22b005e8dba1a19df4e04a7649
• https://git.kernel.org/stable/c/bf2848e50bd73782c2942ec023b5b60231f16e9b

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