Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: virt: sev-guest: Explicitly leak pages in unknown state When set_memory_{encrypted,decrypted}() fail, the user cannot know at which point the function failed, meaning that the pages are left in an unknown state from the point of view of the caller. Since the pages may be left in an unencrypted state, they are not suitable for general use, and cannot be returned safely to the buddy allocator. Avoid the issue by never freeing the pages, and then do the proper accounting by calling snp_leak_pages().
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 6.13.8, < 6.14 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/3d0cd0065deeb054b4b29236432e851806b7cc81Patch
- https://git.kernel.org/stable/c/bee400ad4f4259c9c0758e4f1960a1eed6f6f9f0Patch
- https://git.kernel.org/stable/c/fd948c3f96b18ff9ba7d3e8eae13d196593e1aafPatch
FAQ
What is CVE-2026-64104?
CVE-2026-64104 is a vulnerability with a CVSS score of 8.7 (HIGH). In the Linux kernel, the following vulnerability has been resolved: virt: sev-guest: Explicitly leak pages in unknown state When set_memory_{encrypted,decrypted}() fail, the user cannot know at whic...
How severe is CVE-2026-64104?
CVE-2026-64104 has been rated HIGH with a CVSS base score of 8.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-64104?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.