CVE - CVE-2024-49874

CVE-ID
CVE-2024-49874	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/27b55724d3f781dd6e635e89dc6e2fd78fa81a00 URL:https://git.kernel.org/stable/c/27b55724d3f781dd6e635e89dc6e2fd78fa81a00 MISC:https://git.kernel.org/stable/c/4318998892bf8fe99f97bea18c37ae7b685af75a URL:https://git.kernel.org/stable/c/4318998892bf8fe99f97bea18c37ae7b685af75a MISC:https://git.kernel.org/stable/c/4ac637122930cc4ab7e2c22e364cf3aaf96b05b1 URL:https://git.kernel.org/stable/c/4ac637122930cc4ab7e2c22e364cf3aaf96b05b1 MISC:https://git.kernel.org/stable/c/61850725779709369c7e907ae8c7c75dc7cec4f3 URL:https://git.kernel.org/stable/c/61850725779709369c7e907ae8c7c75dc7cec4f3
Assigning CNA
kernel.org
Date Record Created
20241021	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20241021)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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