In the Linux kernel, the following vulnerability has been resolved: hv_netvsc: Don't free decrypted memory 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. The netvsc driver could free decrypted/shared pages if set_memory_decrypted() fails. Check the decrypted field in the gpadl to decide whether to free the memory.
History

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2024-05-30T15:29:09.475Z

Updated: 2024-11-05T09:27:56.185Z

Reserved: 2024-05-30T15:25:07.067Z

Link: CVE-2024-36911

cve-icon Vulnrichment

Updated: 2024-08-02T03:43:49.175Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2024-05-30T16:15:14.530

Modified: 2024-05-30T18:18:58.870

Link: CVE-2024-36911

cve-icon Redhat

Severity : Low

Publid Date: 2024-05-30T00:00:00Z

Links: CVE-2024-36911 - Bugzilla