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CVE-2026-72079: Input: ims-pcu - fix use-after-free and double-free in disconnect

• 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: 2026-08-15 · updated 2026-08-17

Description

In the Linux kernel, the following vulnerability has been resolved: Input: ims-pcu - fix use-after-free and double-free in disconnect ims_pcu_disconnect() only intended to perform cleanup when the primary (control) interface is unbound. However, it currently relies on the interface class to distinguish between control and data interfaces. A malicious device could present a data interface with the same class as the control interface, leading to premature cleanup and potential use-after-free or double-free. Switch to verifying that the interface being disconnected is indeed the control interface.

Affected products

• Linux kernel: 3.10 — fixed in 7.2

How to fix

Upgrade to a fixed version: Linux kernel 7.2. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/293388e42e5c0865204de6f36bfb8662156fce3b
• https://git.kernel.org/stable/c/315f269ea04bc1477ab9bf351e939623d12a1621
• https://git.kernel.org/stable/c/462a999917755a3bf77448dfd64307963cf0a9f0
• https://git.kernel.org/stable/c/6a6c373e6a82eddc522342c8a8db7072c65f2b56
• https://git.kernel.org/stable/c/6aacc18004b1a915ccb8a829d30279a37988066e
• https://git.kernel.org/stable/c/921abbb33887052e46b1b77299f87a3c741dc580
• https://git.kernel.org/stable/c/a4b3f4d42fbf58f06f0d49e37a9d0d9392eca338
• https://git.kernel.org/stable/c/bf0b58ba489d0bdaa18c7dd8beeaeb954dd7dbb7

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