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CVE-2024-36912 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: Drivers: hv: vmbus: Track decrypted status in vmbus_gpadl In CoCo VMs it is possible for the untrusted host to cause set_memory_encrypted() or set_memory_decrypted() to fail such that an error is returned and the resulting memory is shared. Callers need to take care to handle these errors to avoid returning decrypted (shared) memory to the page allocator, which could lead to functional or security issues. In order to make sure callers of vmbus_establish_gpadl() and vmbus_teardown_gpadl() don't return decrypted/shared pages to allocators, add a field in struct vmbus_gpadl to keep track of the decryption status of the buffers. This will allow the callers to know if they should free or leak the pages.


Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://git.kernel.org/stable/c/1999644d95194d4a58d3e80ad04ce19220a01a81
https://git.kernel.org/stable/c/211f514ebf1ef5de37b1cf6df9d28a56cfd242ca
https://git.kernel.org/stable/c/8e62341f5c45b27519b7d193bcc32ada416ad9d8
https://git.kernel.org/stable/c/bfae56be077ba14311509e70706a13458f87ea99

Weakness Enumeration

CWE-ID CWE Name Source
CWE-1258 Exposure of Sensitive System Information Due to Uncleared Debug Information CISA-ADP  

Change History

2 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2024-36912
NVD Published Date:
05/30/2024
NVD Last Modified:
07/02/2024
Source:
kernel.org