CVE-2024-57793 (GCVE-0-2024-57793)

Vulnerability from cvelistv5 – Published: 2025-01-11 12:39 – Updated: 2025-05-04 10:04
VLAI?
Title
virt: tdx-guest: Just leak decrypted memory on unrecoverable errors
Summary
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().
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: f4738f56d1dc62aaba69b33702a5ab098f1b8c63 , < 1429ae7b7d4759a1e362456b8911c701bae655b4 (git)
Affected: f4738f56d1dc62aaba69b33702a5ab098f1b8c63 , < 27834971f616c5e154423c578fa95e0444444ce1 (git)
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    Linux Linux Affected: 6.7
Unaffected: 0 , < 6.7 (semver)
Unaffected: 6.12.8 , ≤ 6.12.* (semver)
Unaffected: 6.13 , ≤ * (original_commit_for_fix)
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvirt: tdx-guest: Just leak decrypted memory on unrecoverable errors\n\nIn CoCo VMs it is possible for the untrusted host to cause\nset_memory_decrypted() to fail such that an error is returned\nand the resulting memory is shared. Callers need to take care\nto handle these errors to avoid returning decrypted (shared)\nmemory to the page allocator, which could lead to functional\nor security issues.\n\nLeak the decrypted memory when set_memory_decrypted() fails,\nand don\u0027t need to print an error since set_memory_decrypted()\nwill call WARN_ONCE()."
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      "providerMetadata": {
        "dateUpdated": "2025-05-04T10:04:55.170Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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        {
          "url": "https://git.kernel.org/stable/c/27834971f616c5e154423c578fa95e0444444ce1"
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    "datePublished": "2025-01-11T12:39:47.347Z",
    "dateReserved": "2025-01-11T12:32:49.384Z",
    "dateUpdated": "2025-05-04T10:04:55.170Z",
    "state": "PUBLISHED"
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.