CVE-2026-64104

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Source
https://cve.org/CVERecord?id=CVE-2026-64104
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-64104.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-64104
Downstream
BELL (1)
DEBIAN (1)
openSUSE (1)
SUSE (4)
UBUNTU (1)
Related
openSUSE (1)
SUSE (4)
Published
2026-07-19T15:40:07Z
Modified
2026-10-08T02:51:10Z
Severity
  • 8.7 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L CVSS Calculator
Summary
virt: sev-guest: Explicitly leak pages in unknown state
Details

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().

Database specific 
{
    "cna_assigner":  "Linux",
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64104.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
3e385c0d6ce88ac9916dcf84267bd5855d830748
Fixed
bee400ad4f4259c9c0758e4f1960a1eed6f6f9f0
Fixed
3d0cd0065deeb054b4b29236432e851806b7cc81
Fixed
fd948c3f96b18ff9ba7d3e8eae13d196593e1aaf
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
6.13.8
Fixed
6.14
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
0b16521f95c875e79d657cb8d6911c15080dbb80

Affected versions

v6.*
v6.13.10
v6.13.11
v6.13.12
v6.13.8
v6.13.9

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-64104.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
6.14.0
Fixed
6.18.34
Type
ECOSYSTEM
Events
Introduced
6.19.0
Fixed
7.0.11

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-64104.json"