CVE-2021-47361

May 21, 2024, 4:54 p.m.

None
No Score

Description

In the Linux kernel, the following vulnerability has been resolved: mcb: fix error handling in mcb_alloc_bus() There are two bugs: 1) If ida_simple_get() fails then this code calls put_device(carrier) but we haven't yet called get_device(carrier) and probably that leads to a use after free. 2) After device_initialize() then we need to use put_device() to release the bus. This will free the internal resources tied to the device and call mcb_free_bus() which will free the rest.

Product(s) Impacted

Product Versions
Linux kernel

Weaknesses

Common security weaknesses mapped to this vulnerability.

References

https://git.kernel.org/stable/c/115b07d9f47e3996430b8f2007edd9768e1f807f
https://git.kernel.org/stable/c/25a1433216489de4abc889910f744e952cb6dbae
https://git.kernel.org/stable/c/66f74ba9be9daf9c47fface6af3677f602774f6b
https://git.kernel.org/stable/c/7751f609eadf36b1f53712bae430019c53a16eb0
https://git.kernel.org/stable/c/8a558261fa57a6deefb0925ab1829f698b194aea
https://git.kernel.org/stable/c/91e4ad05bf18322b5921d1a6c9b603f6eb1694f0
https://git.kernel.org/stable/c/9fc198f415dee070a1de957bb5bf5921d8df3499

Tags

416baaa9-dc9f-4396-8d5f-8c081fb06d67
2024-05-21
CVE-2021-47361

Timeline

Published: May 21, 2024, 3:15 p.m.
Last Modified: May 21, 2024, 4:54 p.m.

Status : Awaiting Analysis

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

416baaa9-dc9f-4396-8d5f-8c081fb06d67

*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.