CVE - CVE-2021-47361

CVE-ID
CVE-2021-47361	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: 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.
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/115b07d9f47e3996430b8f2007edd9768e1f807f URL:https://git.kernel.org/stable/c/115b07d9f47e3996430b8f2007edd9768e1f807f MISC:https://git.kernel.org/stable/c/25a1433216489de4abc889910f744e952cb6dbae URL:https://git.kernel.org/stable/c/25a1433216489de4abc889910f744e952cb6dbae MISC:https://git.kernel.org/stable/c/66f74ba9be9daf9c47fface6af3677f602774f6b URL:https://git.kernel.org/stable/c/66f74ba9be9daf9c47fface6af3677f602774f6b MISC:https://git.kernel.org/stable/c/7751f609eadf36b1f53712bae430019c53a16eb0 URL:https://git.kernel.org/stable/c/7751f609eadf36b1f53712bae430019c53a16eb0 MISC:https://git.kernel.org/stable/c/8a558261fa57a6deefb0925ab1829f698b194aea URL:https://git.kernel.org/stable/c/8a558261fa57a6deefb0925ab1829f698b194aea MISC:https://git.kernel.org/stable/c/91e4ad05bf18322b5921d1a6c9b603f6eb1694f0 URL:https://git.kernel.org/stable/c/91e4ad05bf18322b5921d1a6c9b603f6eb1694f0 MISC:https://git.kernel.org/stable/c/9fc198f415dee070a1de957bb5bf5921d8df3499 URL:https://git.kernel.org/stable/c/9fc198f415dee070a1de957bb5bf5921d8df3499
Assigning CNA
kernel.org
Date Record Created
20240521	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 (20240521)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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