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CVE-2024-57793 – “Red Hat Linux Virtfs Memory Leak Vulnerability”

The following table lists the changes that have been made to the
CVE-2024-57793 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution
of a vulnerability, and for identifying the most recent changes that may
impact the vulnerability’s severity, exploitability, or other characteristics.

  • New CVE Received
    by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Jan. 11, 2025

    Action Type Old Value New Value
    Added Description In the Linux kernel, the following vulnerability has been resolved:

    virt: tdx-guest: Just leak decrypted memory on unrecoverable errors

    In CoCo VMs it is possible for the untrusted host to cause
    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.

    Leak the decrypted memory when set_memory_decrypted() fails,
    and don’t need to print an error since set_memory_decrypted()
    will call WARN_ONCE().
    Added Reference https://git.kernel.org/stable/c/1429ae7b7d4759a1e362456b8911c701bae655b4
    Added Reference https://git.kernel.org/stable/c/27834971f616c5e154423c578fa95e0444444ce1
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