CVE - CVE-2024-36912

CVE-ID
CVE-2024-36912	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: 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.
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/1999644d95194d4a58d3e80ad04ce19220a01a81 URL:https://git.kernel.org/stable/c/1999644d95194d4a58d3e80ad04ce19220a01a81 MISC:https://git.kernel.org/stable/c/211f514ebf1ef5de37b1cf6df9d28a56cfd242ca URL:https://git.kernel.org/stable/c/211f514ebf1ef5de37b1cf6df9d28a56cfd242ca MISC:https://git.kernel.org/stable/c/8e62341f5c45b27519b7d193bcc32ada416ad9d8 URL:https://git.kernel.org/stable/c/8e62341f5c45b27519b7d193bcc32ada416ad9d8 MISC:https://git.kernel.org/stable/c/bfae56be077ba14311509e70706a13458f87ea99 URL:https://git.kernel.org/stable/c/bfae56be077ba14311509e70706a13458f87ea99
Assigning CNA
kernel.org
Date Record Created
20240530	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 (20240530)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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