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
Configurations
Configuration 1 (hide)
|
History
14 Dec 2024, 21:15
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
24 Oct 2024, 20:27
| Type | Values Removed | Values Added |
|---|---|---|
| CPE | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| CWE | CWE-416 | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 7.0 |
| First Time |
Linux
Linux linux Kernel |
|
| References | () https://git.kernel.org/stable/c/4ac637122930cc4ab7e2c22e364cf3aaf96b05b1 - Patch | |
| References | () https://git.kernel.org/stable/c/4318998892bf8fe99f97bea18c37ae7b685af75a - Patch | |
| References | () https://git.kernel.org/stable/c/27b55724d3f781dd6e635e89dc6e2fd78fa81a00 - Patch | |
| References | () https://git.kernel.org/stable/c/61850725779709369c7e907ae8c7c75dc7cec4f3 - Patch |
21 Oct 2024, 18:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2024-10-21 18:15
Updated : 2024-12-14 21:15
NVD link : CVE-2024-49874
Mitre link : CVE-2024-49874
JSON object : View
Products Affected
linux
- linux_kernel
CWE
CWE-416
Use After Free