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cve/2024/CVE-2024-56654.md
0xMarcio 1fb02038e8 Update CVE sources 2025-09-29 16:08
2025-09-29 16:08:36 +00:00

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CVE-2024-56654

Description

In the Linux kernel, the following vulnerability has been resolved:Bluetooth: hci_event: Fix using rcu_read_(un)lock while iteratingThe usage of rcu_read_(un)lock while inside list_for_each_entry_rcu isnot safe since for the most part entries fetched this way shall betreated as rcu_dereference: Note that the value returned by rcu_dereference() is valid only within the enclosing RCU read-side critical section [1]_. For example, the following is not legal:: rcu_read_lock(); p = rcu_dereference(head.next); rcu_read_unlock(); x = p->address; /* BUG!!! / rcu_read_lock(); y = p->data; / BUG!!! */ rcu_read_unlock();

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