CVE-2024-49874

In the Linux kernel, the following vulnerability has been resolved: i3c: master: svc: Fix use after free vulnerability in svc_i3c_master Driver Due to Race Condition In the svc_i3c_master_probe function, &master->hj_work is bound with svc_i3c_master_hj_work, &master->ibi_work is bound with svc_i3c_master_ibi_work. And svc_i3c_master_ibi_work can start the hj_work, svc_i3c_master_irq_handler can start the ibi_work. If we remove the module which will call svc_i3c_master_remove to make cleanup, it will free master->base through i3c_master_unregister while the work mentioned above will be used. The sequence of operations that may lead to a UAF bug is as follows: CPU0 CPU1 | svc_i3c_master_hj_work svc_i3c_master_remove | i3c_master_unregister(&master->base)| device_unregister(&master->dev) | device_release | //free master->base | | i3c_master_do_daa(&master->base) | //use master->base Fix it by ensuring that the work is canceled before proceeding with the cleanup in svc_i3c_master_remove.

CVSS v3 7.0 HIGH

7.0^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.0 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/27b55724d3f781dd6e635e89dc6e2fd78fa81a00	Patch
https://git.kernel.org/stable/c/4318998892bf8fe99f97bea18c37ae7b685af75a	Patch
https://git.kernel.org/stable/c/4ac637122930cc4ab7e2c22e364cf3aaf96b05b1	Patch
https://git.kernel.org/stable/c/56bddf543d4d7ddeff3f87b554ddacfdf086bffe
https://git.kernel.org/stable/c/61850725779709369c7e907ae8c7c75dc7cec4f3	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::::::::

History

14 Dec 2024, 21:15

Type	Values Removed	Values Added
References		() https://git.kernel.org/stable/c/56bddf543d4d7ddeff3f87b554ddacfdf086bffe -

Information

Published : 2024-10-21 18:15

Updated : 2024-12-14 21:15

NVD link : CVE-2024-49874

Mitre link : CVE-2024-49874

CVE.ORG link : CVE-2024-49874

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-416

Use After Free

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