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CVE-2026-72024: mac802154: remove interfaces with RCU list deletion

• Severity: high (CVSS 7.8 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: 2026-08-15 · updated 2026-10-19
• Weakness: CWE-362

Description

In the Linux kernel, the following vulnerability has been resolved: mac802154: remove interfaces with RCU list deletion Queue wake, stop, and disable paths walk local->interfaces under RCU. The bulk hardware teardown path removes entries with list_del(), so an asynchronous transmit completion can follow a poisoned list node in ieee802154_wake_queue(). Use list_del_rcu() as in the single-interface removal path. The following unregister_netdevice() waits for in-flight RCU readers before freeing the netdevice, so no separate grace-period wait is needed.

Affected products

• Linux kernel: 3.19 — 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/2039f27b1a0c997137a5de7f8a3cee0e80fbf952
• https://git.kernel.org/stable/c/4bf231f459b542414629b64f63d5cad6701bd07c
• https://git.kernel.org/stable/c/539dfcf69105d8d3d4d677b71de6e5ede2e6dfa0
• https://git.kernel.org/stable/c/72ac5af9ad09662bd0ea91cb8845d490c8ef9c01
• https://git.kernel.org/stable/c/77caf2d6eba7cb94a7ecd7b369a5974fd7d7c054
• https://git.kernel.org/stable/c/b91e5248dd7af09b500879a46d22a36b60db3a57
• https://git.kernel.org/stable/c/c7c031b75218b3ba3014a0f6b9849888994528d6
• https://git.kernel.org/stable/c/d8b5b66388a51febe4b8505b0ecd9da15b4ba639

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