CVE-2024-56654

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_event: Fix using rcu_read_(un)lock while iterating The usage of rcu_read_(un)lock while inside list_for_each_entry_rcu is not safe since for the most part entries fetched this way shall be treated 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();

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/0108132d7d76d884e443d18b4f067cdf2811911b	Patch
https://git.kernel.org/stable/c/581dd2dc168fe0ed2a7a5534a724f0d3751c93ae	Patch
https://git.kernel.org/stable/c/f9ecc90b5d501b3a5a62d0685d5104f934bb0104	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:6.13:rc1::::::
	cpe:2.3:o:linux:linux_kernel:6.13:rc2::::::

History

No history.

Information

Published : 2024-12-27 15:15

Updated : 2025-10-01 20:17

NVD link : CVE-2024-56654

Mitre link : CVE-2024-56654

CVE.ORG link : CVE-2024-56654

JSON object : View

Products Affected

linux

linux_kernel

CWE

NVD-CWE-noinfo

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